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🦑 Repost a mobile development post (from the developer club) Code by UndercOde

> PART 3
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1) English coding
Table 2, set short message content is "Hello World!". The default GSM character set is a 7-bit encoding, which can be simply understood as ASCII (the ASCII value is less than 80Hex, so Bit8 is ignored), and the last few digits of the next 7-bit encoding are moved to the front one by one to form a new one. 8-bit code, see Table 2 for arrow indication. It should be noted that in the ninth line, the shift count has reached 7 bits, then directly add 0 before this encoding. GSM does not support all ASCII character displays.

> Table 2 English coding implementation

Here is the English coding portion codes Delphi 5:
// English format encoding, s is a String
function Encode1 (var S: String): String;
var
I, J, len: Integer;
CUR: Integer ;
t: String;
begin
Result: = '';
len: = Length (s);
// j is used to shift the count
i: = 1; j: = 0;
while i <= len do
begin
if i <len then
// data transformation
cur: = (ord (s [i]) shr j) or ( (ord (s [i + 1]) shl (7-j)) and ＄ ff)
else
cur: = (ord (s [i]) shr j) and ＄ 7f;
FmtStr (t, '% 2.2X', [cur ]);
Result: = Result ＋ t;
inc (i);
// Special processing for shift count up to 7 bits
j: = (j + 1) mod 7; if j = 0 then inc (i);
end;
end;

2> Chinese coding
see Table 3, set short message content is "Chinese short message." The realization of Chinese short message is relatively simple, just need to convert the Chinese encoding of ?????? into the Unicode encoding of code page CP936.
Table 3 Chinese encoding process implemented

by the Delphi WideString type conversion, cleverly realized ?????? Unicode code conversion (Note that the code page and associated operating system) to. Here are some Delphi 5 codes that implement Chinese encoding:
// Chinese format encoding, s is Unicode String
function Encode2 (var s: WideString): String;
var
i, len: Integer;
cur: Integer;
t: String;
begin
Result: = '';
len: = Length (s);
i: = 1;
while i <= len do
begin
cur: = ord (s [i] );
// convert the BCD
FmtStr (T, '% 4.4x', [CUR]);
the Result: the Result = T +;
inc is (I);
End;
End;
Summary
above described encoding PDU format short message. It is recommended that the length of the English message does not exceed 140 characters, and the Chinese message does not exceed 54 Chinese characters. If you use a mobile phone that supports text mode for sending, it is easier to implement. To send "Hello World!", Use the following AT command:
AT ＋ CGMF = 1 <CR> AT ＋ CGMS = "136056960

ENJOY BY UNDERCODE

<TUTORIAL BY AND FOR EXPERT HACKERS >
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🦑 Set up a complete DHCP strategy Full @UndercOdeOfficial
t.me/UndercOdeTesting

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) The benefits of DHCP, I have spent a lot of time in the "DHCP Protocol" of "Network Basics", you should know, so I won't go into details here. Don't think that I

> set up DHCP

so complicated in "Network Basics", but setting up DHCP under Linux is not complicated at all. All you have to do is one file: /etc/dhcpd.conf.

2) Below, I use my own settings file to explain how to modify this file.

Default-lease-time 259200;
max-lease-time 777600;
option domain-name "" siyongc "";

3) I put these lines at the beginning of the file Part. In the first and second lines, I define the default period and maximum period of the lease. The value is calculated in seconds, that is, 'three days' and 'nine days'.
Then I specified the domain name used by the network.

Next is ﹕

subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.21 192.168.0.30;
range 192.168.0.121 192.168.0.230;
option broadcast-address 192.168.0.255;
option routers 192.168.0.17;
option domain-name-servers 192.168 .0.17, 203.56.8.1;
}

subnet 203.30.35.128 netmask 255.255.255.224 {
range 203.30.35.140 203.30.35.157;
option broadcast-address 203.30.35.159;
option routers 203.30.35.134
option domain-name-servers 203.30.35.134 203.56.8.1;
}


4) Here, I have two The block NIC provides DHCP services to both networks. Under the first network (192.168.0.0), I specified two scopes, which are the IP ranges used to allocate DHCP: 192.168.0.21 to 192.168.0.30 and 192.168.0.121 to 192.168.0.230. I also specified 'broadcast address', 'router address', and 'DNS address'.
Because the second network uses a 27-bit netmask, the Net ID is ﹕ 203.30.35.128 and the broadcast address is ﹕ 203.30.35.159.

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🦑 Set up a complete DHCP strategy Full PART 2
twitter.com/UndercOdeTC

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

host pii266 {
hardware ethernet 48: 54: E8: 27: 75: 77;
fixed-address 192.168.0.15;
}

1) As we know, the client machine that obtains IP through DHCP may lose its original IP if its lease has expired. However, I think that my pii266 host will always use a fixed IP address. The sentence above is for this purpose. First of all, I have to find the interface type and hardware address of the network that is connected to my network on the pii266 machine. 0.15 This IP that is not in DHCP scopes is assigned to pii266.

2) If you refer to the above file for your settings, please pay attention to each punctuation mark. Some numbers are separated by ',', and some are separated by space. (Same as perl script), otherwise, the next line will be treated as a continuation of the line, and will not be treated as a new line.

3) After the /etc/dhcpd.conf file is set, you also need to create a blank file /etc/dhcp.leases with the following command:
touch /etc/dhcp.leases
Note: You should not try to modify this file yourself. If there is a problem with the file, delete or rename it, and then create it with the touch command.

4) We already know in "Network Basics" that in the early stage of DHCP operation, the client used the broadcast method to query DHCP information. The problem is that I have two network cards here. When DHCP responds to the client ’s query, it is difficult to determine which network to pass to. Because the client has not yet been assigned an IP address at the beginning, so I am in my / etc / Added such a line in hosts ﹕

255.255.255.255 all-ones all-ones

5) Then, I also added this description in /etc/rc.d/rc.local ﹕
# Lines added by netman,
# for enabling DHCP routing on multi-nics environement:
echo "" Adding IP routing for DHCP server .. . ""
route add -host 255.255.255.255 dev eth0
route add -host 255.255.255.255 dev eth1

6) This way, when the machine is activated, the DHCP route is set. However, it seems that the new version of Linux no longer needs to worry about this problem. If you find that DHCP fails to provide services, consider using this method again.

7) The last thing you need to do is to reactivate the DHCP service:
/etc/rc.d/init.d/dhcpd restart
Note if there is any error message, make appropriate changes, and try to activate dhcpd (use start instead of restart).

8) Setting up DHCP for IP Alias

In some cases, we may use IP Alias to connect to the network. At this time, we can also provide DHCP service for the network where alias is located? However, it should be noted that you can only provide one sub-net service for one interface, even if the interface is bundled with several aliases.

9) The setting is also quite simple. ﹕

Set the network where alias is located.
Then cancel /etc/dhcpd.conf about the subnet where the original IP is located.
Just leave the range of the network where alias is on.

In my tests, /etc/dhcpd.conf is not the most important. I still need to make sure that the ip alias is successfully activated when shutting down, and the routing must be set up.

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🦑 Set up a complete DHCP strategy Full PART 3 THE PROCESS
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🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) activate dhcpd:

If you have any interface has been up
&&
and routing has been set {

if the original interface sub-net has been
declared good { ## then whether you are delcare good alias The sub-net
dhcpd can be activated successfully.
}

Otherly {#If the original interface sub-net is not declared,
if the sub-net where the alias is located is already declared {
if the sub-net where the alias is located has been routed {
dhcpd can be successfully activated
}
Otherwise {#if the sub-net where the alias is still Not set routing
When you activate dhcpd, you should get ﹕
No subnet declaration for ethx (the original IP network)
and fail.
}
}

Else {# If the alias does not declare the case where the subnet
will get No subnet declaration for ethx error
}
}
}

2) , the operation dhcpd

When you have successfully activated the dhcpd {

If you have the original declear The sub-net where the interface is located {
with range settings {
## Then no matter whether you set the sub-net and range
dhcpd where alias is located, it will only offer the sub-net of the original interface
}
otherwise {# 无 range Settings
## Then whether you Whether the sub-net where the alias is located and the range
dhcpd after receiving the DHCPDISCOVER will respond ﹕
no free leases on subnet (sub-net of the original interface)
}

otherwise {#If you have not cleared the sub-net where the original interface is located
If there alias where the sub-net {# if no dhcpd failed to activate when
there is range set {
dhcpd will offer alias host-NET Sub
}
Otherwise {# no range setting
dhcpd will respond after receiving DHCPDISCOVER ﹕
no free leases on subnet (alias is in the sub-net)
}
}
}

e n j o y by U N D E R C O D E
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🦑 HOW to Test DHCP AFTER SETTING UP
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🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) to test whether HDCP works is not easy Just find a Linux machine on the same network and change its interface to use DHCP. For example, modify the file / etc / sysconfig / network-scripts / ifcfg-eth0 so that it looks like this:

DEVICE = "" eth0 ""
IPADDR = "" ""
NETMASK = "" ""
ONBOOT = "" yes ""
BOOTPROTO = "" dhcp ""



2) If you are using a Windows system, then ﹕ Start-> Settings-> Control Panel-> Network-> 'TCP / IP-> Network Card'-> IP address-> Obtain an IP address automatically-> OK-> OK-> Reactivate the machine. After logging in, execute ﹕ Start-> Run-> winipcfg-> There is still information. You can verify the DHCP settings immediately. If you want to change the settings on the DHCP server side, you can click "Update All" to see if the new settings take effect

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🦑 WhatsApp users warned about "New Year's virus"

> According to the portal, attackers send out links to web pages infected with viruses under the guise of a Happy New Year. Switching to such a resource carries a risk for a smartphone or computer, since hackers gain access to personal data.

> "Users will also be subject to invasive advertising and will be forced to provide confidential personal data or register to subscribe to unwanted services," the material says.

> Smartphones running Android and iOS are at risk.

> it became aware of a new vulnerability in WhatsApp. So, application users could block the messenger on the devices of people with whom they were in the same group chat.

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🦑 PHP4 COM function (windows version) : FULL
PART 1
T.me/UndercodeTesting

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) built on COM functions in PHP4 for us Developing programs in win32 is quite attractive, but there are still not many related technical documents. This will be an example of three points

2) ill send this tutorial on old windpows version for better understanding respectively processed MS office 2000 Word, Excel, Adobe Distiller to illustrate how to use the COM function in PHP.

3) COM technology proposed by the Microsoft and developed a few years ago, related terms referred to herein have OLE, OLE Automation, ActiveX, COM , the meaning of these words are basically a

> sample, are represented by the section of the package code (objects) To complete some functions of a windows application. PHP4 COM function can be connected to an object instance, and its methods and use

🦑COM markers in PHP4

Now let us begin with COM PHP4's to instantiate a component, you need new operator And object's "OLE program identifier":


$ instance = new COM ("$ identifier");

?>

Because the COM is a reserved word in PHP4, it transmits the object identifier to a constructor, now give an example of this component, depending on the nature of OOP classes, we can easily

access its methods and properties.

For example:


$ instance-> [Object]-> [method1]-> [method2]-> ..-> [property];

?> It

's that simple!

OOP structure does not work in PHP. (Due to PHP syntax issues, property names. Values ​​are illegal characters such as dots and parentheses, etc.), so PHP4 provides two corresponding functions:


bool com_set (class com_object, string property name, string property_value);

mixed com_get (class com_object, string property_name);

?>

Finally, PHP4 also supports DCOM technology, which can create an object instance on a remote computer.


$ Instance = new COM (string "Component name", string "remote_server_address");

?>
Note: This is using DCOM instructions to set up PHP. In the future, PHP developers will provide support for DCOM under Unix.

Identification, properties and methods

identify a string as follows:

the MS Word: "the Word.Application" or "Word.Application.9"
MS Excel: "Excel.Application" or "Excel.Sheet"
ADOBE Acrobat: "Exch.application" or "PdfDistiller.PdfDistiller"

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🦑 PHP4 COM function (windows version) : FULL
PART 2
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🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) For the last identifier, I want to point out that it is not easy to get the correct object identifier name thing. If you can not access the VBA documentation, you can find about windows registry

2) table, looking about in HKEY_CLASSES_ROOT, you can get some name of the application. Object IDs that are valid on your machine are placed in the CLSID subfolder.

3) Applications typically provide documentation describing its COM methods and properties. In office2000, you can run the program, open the VBA editor, and select the object editor. Enter the application

4) a method name or attribute name of the library, and then, in the following window with the right mouse button to select a class or member name, some help, you'll get a description of the class or member. You also

5) can refer to MSDN. An Excel example is as follows: http://msdn.microsoft.com/library/officedev/off2000/xltocobjectmodelapplication.htm


6) Operate MS Word with COM functions

Now, let's start the first example:


# **** *********************************************
# This example comes from the Zend site, with minor changes
# Open a word instance and create a new document Useless test.doc
# Enter a line of text "
# ********************************************* **** #Instantiate

print "Loaded Word, version {$ word -> Version}


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an object

$ word = new COM ("word.application") or die ("Unable to instantiate Word"); #Get

and display the version

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🦑 PHP4 COM function (windows version) : FULL
PART 3
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"; #Another

way to get the version

$ testversion = com_get ($ word-> application, version);

print" Version using Com_get (): $ testversion
"; #Make

it visible

$ word-> Visible = 1;

# creates a new file

$ Word-> Documents-> the Add ();

# write character

$ Word-> Selection-> TypeText ( "This IS the Test A ...");

# save

$ word-> documents [1] -> the SaveAs ( "Useless test.doc");

# close

$ Word-> the Quit ();

>?

Just take a few minutes to read this program and refer to Word's OLE technical documentation, you will learn almost all the operations you need in your own program.

MS Excel function using PHP's COM

　　As the example above, like Word, you should learn this example also refer to the documentation for Excel Visual Basic Editor Object Browser.


#Open workbook and its sheet,
#This example uses a spreadsheet that is SOLVSAMP.XLS that comes with Excel installation

$ workbook = "C: Program FilesMicrosoft officeOfficeSamplesSOLVSAMP.XLS";
$ sheet = "Quick Tour"; #Instance

a Component object
$ ex = new COM ("Excel.sheet") or Die ("Did not connect"); #Get

program name and version
print "Application name: {$ ex-> Application-> value}
";
print " Loaded version: {$ ex-> Application-> version}

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🦑 PHP4 COM function (windows version) : FULL
PART 4
twitter.com/UNDERCODETC

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

"; #Open workbook

so that we can use it
$ wkb = $ ex-> application-> Workbooks-> Open ($ workbook) or Die (" Did not open " );

# Pre-save the original workbook, create a copy of the workbook
$ ex-> Application->
# $ ex-> Application-> Visible = 1; #This sentence goes to comment to make Excel visible

# Read and write a cell in a new worksheet
# We can read this cell E11 (Advertising in the 4th. Quarter)
$ sheets = $ wkb-> Worksheets ($ sheet); #Select the sheet
$ sheets-> activate; #Activate it
$ cell = $ sheets-> Cells (11,5); #Select the cell (Row Column number)
$ cell-> activate; #Activate the cell
print "Old Value = {$ cell-> value}
"; #Print the value of the cell: 10000
$ cell-> value = 15000; #Change it to 15000
print "New value = {$ cell-> value}
"; #Print the new value = 15000 #Finally

, recalculate this cell with the new value
$ sheets-> Calculate; #Required
if you want to calculate, manual is optional
# Can see Total effect value (cell E13)
$ cell = $ sheets-> Cells (13,5); #Select the cell (Row Column number)
$ number = Number_format ($ cell-> value);
print "New Total cost = $$ number-was $ 47,732 before.
" ;
#According to the calculation formula, the advertisement affects the company's expenses, here will display $ 57,809 #using the

Excel built-in function
# PMT (percent / 12 months, Number of payments, Loan amount)
$ pay = $ ex-> application-> pmt (0.08 / 12,10,10000);
$ pay = sprintf ("%. 2f", $ pay);
print "Monthly payment for $ 10,000 loan @ 8% interest / 10 months: $ $ pay
";

#Should print monthly payment = $ -1,037.03 #Optional

, save
$ ex-> Application-> ActiveWorkbook-> SaveAs ("Ourtest"); #Close
without asking
$ ex-> application-> ActiveWorkbook-> Close ("False");
unset ($ ex);

?>

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🦑 PHP4 COM function (windows version) : FULL
PART 5
twitter.com/UNDERCODETC

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

> This example sended makes your PHP work with Excel. Of course, there are more objects available, and accessing a self-written OOP wrapper class is as easy as accessing excel.

Access Adobe Distiller with PHP's COM

　　This last example is not a MS program, if your program has a PostScript file, that you will be interested to rewrite (distillation) it into a PDF document. Adobe has a

programs called Distiller, It can generate an instance. The code is as follows:


$ pdf = new COM ("pdfdistiller.pdfdistiller.1");

?>

　　One thing to note is that the OLE identifier "pdfdistiller" given in Distiller's documentation is invalid.

The most basic way to distill a file is:


$ pdf-> FileToPdf ($ psfile, strOutputPDF '', strJobOptions "");

?>

$ Psfile is the name of this PostScript file, and strOutputPDF is the name of the output file PDF. StrJobOptions Distiller parameter is the file name, the last two parameters

are optional, the default is the same name. This PS file name and PDF file name use this default Job options file. For example:


$ pdf-> FileToPdf ($ psfile, "", "");
#here $ psfile can be Myfile.ps will return Myfile. pdf file.

?>

There are more methods and properties available in Distiller. If you are interested, please refer to Adobe's technical documentation.


Suspension / possible problems

　　If your code what error occurred, you might create an instance, but it is not properly closed. Worst of all, this application may be held this instance, bear

fruit, there is multiple copies of this program in your list of programs, even if you correct this error can interfere with your results. The solution is: Fixed a bug since they must be promptly removed

before you start running again, and with the end of the task. For the same reason, at the end of your code, you should close the program and delete the instance in time.

You have some tricks when dealing with com_get and com_set exceptions. For example:
$ Version = Com_get ($ instance-> Application, "Version");

will work in Word but generate an error in Excel.

There are some objects that cannot be instantiated in PHP4. This is because this program requires a custom interface, but PHP4 does not support it.


Why do we use it?

　　I hope these three examples can give you some clues for thinking. PHP COM allows you to access windows4 programs in PHP scripts. This code is simpler than ASP and can integrate other

powerful PHP database support functions. Microsoft has vigorously sold this COM technology in all aspects, under different names and structures, such as COM + (Combine COM with

Microsoft Transaction Server MTS), ADO, OLE DB, OWC, Windows DNA, and so on. PHP

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🦑 best free antivirus software programs for Windows 2020 UnderCode lastest Report from yesterday 31/1/20
t.me/UndercOdeTesting

1) Total AV Free Antivirus

2) BullGuard Free Antivirus

3) Panda Free Antivirus

4) Bitdefender Antivirus Free Edition

5) ZoneAlarm Free Antivirus

6) Avira Free Antivirus

7) AVG Free Antivirus

8) Kaspersky Free (updated)

9) Sophos Home Free

10) Avast Free Antivirus

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🦑 ALL Features Needed from a good antimalware or why we need it :
example on tghe first Av
t.me/UndercOdeTesting

> Phishing protection

>Disk cleanup and system startup acceleration

> Browser manager

> Safe website browsing extension for Chrome and Edge browsers

🦑 Recognized advantages :

> Fully compatible with Windows, Android and Mac devices

> Find and copy files remotely

> Very fast without affecting performance

> Detection accuracy of fishing samples reached 89%

🦑 Deficiencies :

> Lack of real-time protection against malicious programs
Occasionally false positives

> Additional features require upgrades or paid purchases

> Cannot set up weekly scans and does not provide the option of daily scans

🦑 Reasons to buy a paid version :

> Advanced protection against ransomware

> Extra features such as password manager, webcam protection,

> smartphone optimizer, remote firewall, etc.

> Provide 7X24 hours technical support service

> 30-day money back guarantee

@UndercOdeTesting
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🦑 End of android-5/6 (termux. net) support on 2020-01-01
t.me/UndercodeTesting

1) The latest development meeting it has been decided to drop android-5 support from 2020-01-01.
From that date there will no longer be any updates to the package repositories' android-5 branches.
An android-5 branch has also been created for termux-app, and the latest tagged version of the app (0.76) requires android 7.

2) Supporting the android-5 branches takes some time and effort from the maintainers. This time and effort would, arguably, be better spent making termux ready for android Q (and later). Some big changes are required to make termux usable for the latest android versions, as discussed in termux/termux-app#1072.

3) If you are using android 5 or android 6 on your device then the only way to continue to get updates after 2020-01-01 would be to upgrade to android 7 or newer (if possible).

4) they start first separated the repos into an android-5 branch and a master branch.

@UndercodeOfficial
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▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

🦑 Expert opinion: software development ABC By UndercOde
t.me/UndercOdeTesting
PART 1


<STRONG> Interview with Trend Micro R & D Associate Gong Huazhong <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <? Xml: namespace prefix = o ns = \ "urn: schemas-microsoft- com: office: office \ "/> <o: p> </ o: p> </ SPAN> </ STRONG>
<P class = MsoNormal style = \" MARGIN: 0cm 0cm 0pt \ "> <SPAN lang = EN -US style = \ "mso-fareast-language: EN-US \"> <FONT size = 3> <STRONG> & nbsp; <o: p> </ o: p> </ STRONG> </ FONT> </ FONT> SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Introduction: When it comes to software development, everyone knows that this is not a simple task. Indeed, software The industry is a highly competitive and fast-moving industry. Modules are often revised due to market changes. Therefore, news about software vendors delaying product launches is heard, but this does not mean that delayed listing is normal. This kind of effort and standard, truly achieves "</ SPAN> <SPAN lang = EN-US style = \" mso-fareast-language: ZH-CN; mso-fareast-font-family: Songti \ "> Ship quality product on time </ SPAN> <SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family : \ 'Times New Roman \' \ ">". </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> <
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ " FONT-FAMILY: Times New Roman; mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Because software companies have different business natures, the engineering required for product development is not the same. In the case of Trend Micro, it is a company that produces software products. After the product is developed and listed, customers decide whether to buy it. Therefore, the risk of software development is very Big. Some small software companies are "software projects" that receive customers. They only need to complete the project, and the risks are naturally small. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> It can be seen that for software companies whose main business is the production of software products, the larger the scale, The development risk is naturally relatively high. How to make a perfect software product that meets the needs of the market is the aspiration of all software vendors, but this involves many small and large links, including company policies, operating procedures, and engineer quality. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>

Written by UndercOde
▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

🦑 Expert opinion: software development ABC By UndercOde
t.me/UndercOdeTesting

PART 2

<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <B> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast -font-family: Songti \ "> & nbsp; & nbsp; & nbsp; Perfect is empty </ SPAN> </ B> <B> <SPAN style = \" FONT-FAMILY: Songti; mso-fareast-language: EN-US ; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ ">, </ SPAN> </ B> <B> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: 宋体 \"> Simple is beauty </ SPAN> </ B> <B> <SPAN style = \ " FONT-FAMILY: Times New Roman; mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> !! </ SPAN> <SPAN lang = EN-US>

<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Here is a simple discussion of the development principles. For example, if the product is not 100% perfect, will it always be changed? of course not! Take the birth of a baby as an example.

> If people can add a specific gene to produce a perfect baby when they want to conceive, then it is certain that this period will be far away. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> There are several concepts and practices in controlling software development risks. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> One. <B> “Small” － </ B> If the product ’s </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: 宋体 \" > size </ SPAN> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font- family: \ 'Times New Roman \' \ "> Small, the complexity will be reduced a lot, so it is a good practice to cut large projects into small parts and then leave them to different engineers. For example, the first generation of </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: Times New Roman \"> ICQ </ SPAN> <SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \ '\ "> Designed and written by one or two people, and soon it was made. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P> SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \ '\ "> Designed and written by one or two people, and soon it was made. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
Written by UndercOde
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▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

🦑 Expert opinion: software development ABC By UndercOde
t.me/UndercOdeTesting

PART 3

<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> 二. <B> "</ B> </ SPAN> <B> <SPAN lang = EN-US style = \" mso-fareast-language: ZH-CN; mso-fareast-font-family: Songti \ "> Simple is beauty ”</ SPAN> </ B> <SPAN style = \" FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso- hansi-font-family: \ 'Times New Roman \' \ ">-The larger the company, the lower the productivity, because some additional costs need to be added, including the control of schedule, the quality of engineers, etc. (</ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US; mso-fareast-font-family: Times New Roman \"> policy </ SPAN> <SPAN style = \ "FONT -FAMILY: Times New Roman; / SPAN> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ ">) first, so that you can better grasp the risks, this part involves the scope of" operation management ". </ SPAN> </ FONT> </ P> / SPAN> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ ">) first, so that you can better grasp the risks, this part involves the scope of" operation management ". </ SPAN> </ FONT> </ P>
(Program) engineers also need manpower input such as design specifications, inspection procedures, and test procedures. Compared with the initial situation, the additional cost is increased by an equal number of stages. Generally speaking, the system management is more needed, but on the other hand, the system may also form bureaucracy and stifle creativity, and more documents may not make the quality better. The solution is from the perspective of users. do. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>

Written by UndercOde
▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

🦑 Expert opinion: software development ABC By UndercOde
t.me/UndercOdeTesting

PART 4

<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ " FONT-FAMILY: Times New Roman; mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> The quality of software products actually depends on the needs of users. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font -family:
SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: Times New Roman \">) </ SPAN> </ FONT> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Is quite important. The difference between software and hardware is that as long as it takes more time for software development, few functions cannot be achieved, but its difficulty lies in "how to choose". </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P> SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: Songti \">) </ SPAN> </ FONT> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Is quite important. The difference between software and hardware is that as long as it takes more time for software development, few functions cannot be achieved, but its difficulty lies in "how to choose". </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P> Is quite important. The difference between software and hardware is that as long as it takes more time for software development, few functions cannot be achieved, but its difficulty lies in "how to choose". </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P> Is quite important. The difference between software and hardware is that as long as it takes more time for software development, few functions cannot be achieved, but its difficulty lies in "how to choose". </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <B> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> & nbsp; & nbsp; Creative freedom-the key to the survival of software companies </ SPAN> </ B> <B> <SPAN lang = EN-US style = \" mso-fareast-language: EN-US \ "> <o: p> </ o: p> </ SPAN> </ B> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <B> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \ "> <FONT size = 3> & nbsp; <o: p> </ o: p> </ FONT> </ SPAN> </ B> </ P>

▁ ▂ ▄ ｕ𝕟𝔻Ⓔ𝐫Ć𝔬𝓓ⓔ ▄ ▂ ▁

<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font -family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> <B>. Understand the needs of customers, and change the way to meet their needs (market) </ B>-For example, if the customer does not dare to demand because of some factors, you can try another way to present it, as if customers like plasma TV, but The price of plasma TV is too expensive to be in demand. R & D personnel can try to study the quality of the TV to be as good as the plasma TV. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \ '\ "> Since the customer needs of high-tech products are not easy to know, how to get inspiration for product development? Many engineers start with their own problems. </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: EN-US \"> <o: p> </ o: p> </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN \"> <FONT size = 3> & nbsp; <o : p> </ o: p> </ FONT> </ SPAN> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 24pt; mso-char-indent-count: 2.0; mso-char-indent-size: 12.0pt \"> <FONT size = 3> <SPAN style = \ "FONT-FAMILY: Times New Roman; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \ '\ "> In Trend Micro, in addition to creative ideas for large architectures </ SPAN> <SPAN lang = EN-US style = \" mso-fareast-language: ZH-CN; mso-fareast-font-family : Songti \ "> CIO </ SPAN> <SPAN style = \" FONT-FAMILY: Songti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso- hansi-font-family: \ 'Times New Roman \' \ "> (Technical Chief) or advanced research and development director, the size underneath </ SPAN> <SPAN lang = EN-US style = \" mso-fareast-language : ZH-CN; mso-fareast-font-family: Times New Roman \ "> idea </ SPAN> <SPAN style = \" FONT-FAMILY: Times New Roman;mso-fareast-language: EN-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \' \ "> Those are thought by engineers , Good engineers will think for themselves </ SPAN> <SPAN lang = EN-US style = \ "mso-fareast-language: ZH-CN; mso-fareast-font-family: Songti \"> solution </ SPAN> < SPAN style = \ "FONT-FAMILY: Song Ti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso-hansi-font-family: \ 'Times New Roman \ '\ "> (Solution), bad engineers become </ SPAN> <SPAN lang = EN-US style = \" mso-fareast-language: ZH-CN; mso-fareast-font-family : Songti \ "> coding machine </ SPAN> <SPAN style = \" FONT-FAMILY: Songti; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \'; mso -hansi-font-family: \ 'Times New Roman \' \ "> (programming machine). </ SPAN> </ FONT> </ P>
<P class = MsoNormal style = \ "MARGIN: 0cm 0cm 0pt \"> <SPAN style = \ "FONT-FAMILY: Song Dynasty; mso-fareast-language: ZH-CN; mso-ascii-font-family: \ 'Times New Roman \ '; mso-hansi-font-family: \' Times New Roman \ '\ "> <FONT size = 3> </ FONT> </ SPAN> </ P>

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🦑 Install Oracle under RedFlag-linux any Pc Example by UndercOde
Part 1 - full
t.me/UndercOdeTesting

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋 :

1) machine configuration

Example on old Pc CPU: Intel Pentium III 668203 khz

memory: 128M

operating system: Redflag-Server2.0 (fully installed)

SWAP area: 256M

2) install the required software
Oracle8161_tar.gz

3) Creating the oracle account

4) log in as the root account, open a terminal window, create oracle account

[root @ dbs / root] useradd oracle

[root @ dbs / root] passwd oracle (oralce account settings Password) The

system automatically creates the / home / oracle directory, the owner is oracle. My Oracle ready to install

in this directory.


4) Unzip oracle8161_tar.gz and

log in as root and execute:

[root @ dbs / root] cd / backup

[root @ dbs / backup] tar zxvf oracle8161_tar.gz

5) Generate the Oralce8iR2 directory in the / backup / directory, which contains the unpack Post file

The user environment setting oracle

6) the oracle account login, open terminal window, using the text editor to open

/home/oracle/.bash_profile finally add

the environment variable is set as the line:

ORACLE_HOME = / Home / oracle; Export ORACLE_HOME

the LD_LIBRARY_PATH = / Home / Oracle / lib; Export the LD_LIBRARY_PATH

the ORACLE_BASE = / Home / Oracle; Export the ORACLE_BASE

the ORACLE_SID = ORCL; Export the ORACLE_SID

the ORA_NLS33 = / Home / Oracle / ocommon / NLS / ADMIN / Data; Export the ORA_NLS33

the NLS_LANG = american_america.zhs16cgb231280; Export the NLS_LANG

7) the Log OUT, Log in again with the oracle account and type the env command to view the environment variables you just set.

[oracle @ dbs oracle] env

Written by UndercOde
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