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🦑 OpenLDAP Quick Installation Guide
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1) Obtain software
http://www.openldap.org/software/download/
http://www.openldap.org/software/repo.html

2) Unzip
gunzip -c openldap-VERSION.tgz | tar xfB-
at An ldap subdirectory will be created in the working directory.

3) Read README and INSTALL carefully

4) Run configure
./configure to

see the options of
configure ./configure --help

5) Compile
make depend
make

6) Test the compilation results
cd tests
make

cd.

7) Install the software
su root -c the install the make

8), a configuration file created SLAPD
editing /usr/local/etc/slapd.conf file, LDBM database definition file contains the following formats
database LDBM
suffix "" MY-DOMAIN = DC, the COM DC = ""
the rootdn " "cn = Manager, dc = MY-DOMAIN, dc = COM" "
The rootpw secret

> replaces the above MY-DOMAIN and COM into the actual domain name, for example:
database ldbm
suffix "" dc = mydomain, dc = com ""
rootdn "" cn = Manager, dc = mydomain, dc = com ""
rootpw secret

sample slapd.conf is placed in /usr/local/etc/openldap/slapd.conf

9)Start SLAPD
su root -c / usr / local / libexec / slapd -f myslapd.conf

slapd is installed in the "" libexecdir "specified in the configuration file "Directory, usually / usr / local / libexec / slpad.

10) increasing the initial entry (entries It)
. 1) to create an LDIF file
edit an LDIF format:
DN: DC = MY-DOMAIN, DC = the COM
DC: MY-DOMAIN
O: MY-the ORGANIZATION
objectClass: Organization
objectClass: dcObject

DN: CN = Manager, dc = MY-DOMAIN, dc = COM
cn: Manager
sn: Manager
objectclass: person

🦑 Run ldapadd
ldapadd -D "" cn = Manager, dc = MY-DOMAIN, dc = COM "" -W <myldif.ldif


11)Check whether it has started working normally
ldapsearch -L -b "" dc = MY-DOMAIN, dc = COM "" "" (objectclass = *) ""

For example:
ldapsearch -L -b "" dc = mydomain, dc = com "" -W "" (objectclass = *) ""

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🦑 Introduction to OpenLDAPOPENLDAP is a very powerful tool for accessing network resources.
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Introduction to OpenLDAPOPENLDAP is a very powerful tool for accessing network resources.

1) Download: ftp // ftp.OpenLDAP.org / pub / OpenLDAP / openldap-release / openldap-1.2.10.tgz

2) find it very useful after installation.
Unzip it first:
#tar xzvf $ ver_ldap.tgz

3) and compile and install:
#. / Configure --prefix = $ ldap --enable-dns --enable-cldap --enable-ldapd --enable-wrappers --enable-phonetic- -enable-passwd --enable-shell
#make depend
#make
#make install

4) Modify the configuration file:
add in / etc / profile:
PATH = "" "" $ "" "" PATH: $ ldap / bin: $ ldap / sbin : $ ldap / libexec
CPLUS_INCLUDE_PATH = "" "" $ "" "" CPLUS_INCLUDE_PATH: $ ldap / include
LD_LIBRARY_PATH = "" "" $ "" "" LD_LIBRARY_PATH: $ ldap / lib
LIBRARY_PATH = ""

5) export PATH CPLUS_INCLUDE_PATH LD_LIBRARY_PATH LIBRARY_PATH MANPATH
in /etc/rc.d/rc.local
su root -c `` $ ldap / libexec / slapd -f $ ldap / etc / openldap / slapd.conf ''

6) recompile PHP and bring The parameter --with-ldap = $ ldap makes PHP support openLDAP.
After recompiling and installing, your WEBSERVER will really support openLDAP. I will introduce the wonderful application of openLDAP in the future! !! !!

7) Download: ftp // ftp.OpenLDAP.org / pub / OpenLDAP / openldap-release / openldap-1.2.10.tgz
I find it very useful after installation.
Unzip it first:
#tar xzvf $ ver_ldap.tgz
and compile and install:
#. / Configure --prefix = $ ldap --enable-dns --enable-cldap --enable-ldapd --enable-wrappers --enable-phonetic- -enable-passwd --enable-shell
#make depend
#make
#make install

8) Modify the configuration file:
add in / etc / profile:
PATH = "" "" $ "" "" PATH: $ ldap / bin: $ ldap / sbin : $ ldap / libexec
CPLUS_INCLUDE_PATH = "" "" $ "" "" CPLUS_INCLUDE_PATH: $ ldap / include
LD_LIBRARY_PATH = "" "" $ "" "" LD_LIBRARY_PATH: $ ldap / lib
LIBRARY_PATH = ""

9) export PATH CPLUS_INCLUDE_PATH LD_LIBRARY_PATH LIBRARY_PATH MANPATH
in /etc/rc.d/rc.local
su root -c `` $ ldap / libexec / slapd -f $ ldap / etc / openldap / slapd.conf ''

10) recompile PHP and bring The parameter --with-ldap = $ ldap makes PHP support openLDAP.
After recompiling and installing, your WEBSERVER will really support openLDAP. I will introduce the wonderful application of openLDAP in the future! !! !!

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🦑 Install, reinstall windows backup Ubuntu—wubi by UndercOde :
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🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋

1) Back up a few small files. Before reinstalling windos, back up the wubidr, wubidr.mbr, boot.ini, bootfontbin, NTDETECT.COM, and NTLDR files in the C drive, and find them outside the C drive and save them. The above files are hidden system files. I believe you will find them if you

> install the system.

There are a few files that may not need to be changed, so I don't need to study them carefully. Copy and save them together. They are all very small.

2) Install it. I do n’t need to teach Windows

3) After installing the system, replace the backup files with the files of the same name in the C drive

It's over. It's that simple. After the restart everything is OK. Then use your dual system or ubuntu

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🦑 What is the NFS file system◎ What is NFS? Full by UndercOde :
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1) Network Film System　　　　
NFS was developed by Sun Corporation and launched in 1984. NFS is an RPC service that enables us to achieve file sharing. It is designed to be used between different systems, so it The communication protocol design has nothing to do with the host and operating system. When users want to use remote files, they only need to use "mount" to mount the remote file system under their own file system. no two machines file.

2) machine a machine B

/ /
bin bin etc etc usr usr
man local man Share

3) If we on machine a, / usr / man machine should on machine a is attached to B / usr / man long Mount machine_name: / usr / man / usr / home

4) can mount over. And we can not only mount the directory, but also a file. After mounting, we can only do reading (or writing) on ​​the file, but you can not put this file or directory move, delete out on the remote machie, but it should be noted that as we mount / usr, can no longer mount / usr directory under, or an error will occur

5) Servers & Clients
NFS is to enable files on Servers to be mounted by other machines and achieve resource sharing. The machine that enjoys these files can be called a client. A client can mount a file or a hierarchy of files (file hierarchies) from the server. However, in fact, any machine can be an NFS server or NFS client, even NFS server and NFS client.

6) Servers Exporting & Clients Mounting
NFS server The files or directories exported are recorded in / etc / exports In a file, when we start the NFS server, this script in /etc/rc.local will automatically start the exportfs program, search for the existence of the file / etc / exports, and give the correct permissions to all exports. File hierarchies.

7) However, it should be noted that only the paths exported by the server can be mounted by the NFS client. Similarly, when the client is started, the system will automatically mount all server export paths, and all paths to the mount will be recorded Under / etc / fstab, the fstab file similar to the following

/ dev / sd0a / 4.2 rw 1 1
/ dev / sd0h / tmp 4.2 rw 1 3
/ dev / sd0g / usr 4.2 rw 1 2
/ dev / fd0 / pcfs pcfs rw, noauto 0 0
sparc20: / swap / swap nfs rw, intr, bg, soft 0 0
sparc17: / home / home nfs rw, intr, bg, soft 0 0
sparc17: / home3 / home3 nfs rw, intr, bg, soft 0 0
sparc14: / home4 / home4 nfs rw, intr, bg, soft 0 0
sparc20: / home2 / home2 nfs rw, intr, bg, soft 0 0
sparc20: / var / spool / mail / var / spool / mail nfs rw, intr, bg, soft 0 0
rs970: / home1 / home1 nfs rw, intr, bg , Soft 0 0

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🦑 Understanding Before L Attack :
> What is the NFS file system◎ What is NFS? Full by UndercOde :
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PART 2

🦑 𝕃𝔼𝕋𝕊 𝕊𝕋𝔸ℝ𝕋

★ Noted:
when the client mount to a path, not saying this a path on the copy server to the local machine, we can cd into this mount to a path, just as is the use of local directory as

□ Setting Up a NFS Server

1) Define the machine as an NFS file server

2) Divide the servers disk and define which partitions are to be provided as
the file system shared by the client

3) Define the parameters of each client on the Client Form

4) Write Export / etc / exports (General systems have a default exports)

5) Re-boot NFS server or exportfs -a output instruction with all of the directories and start nfsd 8 & nfsd Daemon, resident in the background

🦑 ps details

1) check / etc / exports permission output path, can be modified to determine only root ,
all user can only read

2) Use exportfs to add or delete directories
exportfs -o access = engineering, ro = dancer / usr
exportfs -u / usr

3) If your machine does not have NIS (YP server) service, when changing data Remember to modify
/ etc / passwd
/ etc / group
/ etc / hosts
/ etc / ethers

4) Set

the syntax of security exportfs for your own network
/ usr / etc / exportfs [-avu] [-o option] [directory]
- a: export all the paths in / etc / exports
-u: unload the exported paths, such as exportfs -u / usr
-o option: such as exportfs -o ro / usr, everyone is read only to / usr
option also has root = hostname, access = client
access = netgroup

🦑 For example:
exportfs -a exports all the paths in exports
exportfs -o access = engineering: other / usr
/ usr This path has only engineering and other
group can read & write
exportfs -o access = oak, ro = dancer / usr
set the client to read / usr as read only, and only the oak group can read

/ etc / exports file

. directory -option [, option]
(set two groups to rw)
/ usr -access = engineering: accounting
/ home -access = engineering: accounting
/ var / spool / mail -access = engineering: accounting
/ export / exec / sun3 -access = engineering: accounting
/export/exec/sun3.sunos.4.1 -access = engineering: accounting
/export/exec/kvm/sun3.sunos.4.1 -access = engineering: accounting
/ export / root / birch -access = birch, root = birch
/ export / swap / birch -access = birch, root = birch
/ export / root / oak -access = oak, root = oak
/ export / swap / oak -access = oak, root = oak
/ export / root / willow -access = willow, root = willow
/ export / swap / willow -access = willow, root = willow
/ export / root / pine -accsee = pine, root = pine
/ export / swap / pine -accsee = pine, root = pine
(access = client, root = hostname so only the superuser of this client has the power rw)
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🦑 How Setting Up a NFS Client
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🦑 Setting Up a NFS Client

1) Declare the machine as a client without a drive or data. Before using SunInstall

2) Edit the file / etc / fstab and make sure that the paths to be mounted are in fstab

3) According to fstab Set the content, set Mount points on the client
(mount_points is the path exported by exports using mkdir)

4) Make sure that the path we want to mount is in / etc / exports

5) You can start the mount to link the directories on the server (mount -a)

/ etc / fstab Example of a file
● syntax filesystem directory type options freq pass
oak: / export / root / boomer / nfs rw 0 0
^^^
Because the file is on the server, not on client,
the client setting is 0
oak: / export / exec / sun3 / usr nfs ro 0 0
oak: / export / exec / kvm / sun3 / usr / kvm nfs ro 0 0
oak: / usr / share / usr / share nfs ro 0 0
oak: / home / oak / home / oak nfs rw, bg 0 0

🦑 mount syntax

● syntax: mount -t type [-rv] -o [option] server: pathname / mount_point
MOUNT:
mount -a mount all the paths listed in / etc / fstab
mount -o ro, soft, bg dancer : / usr / local / usr / local / dancer
to dancer server's / usr / local mount to the client
/ usr / local / dancer and is only the Read

-t of the type: you want to mount Type, such as nfs or 4.2
-r: The mounted path is set to read only
-v: For each action of the mount process, messages are returned to the screen.
Hard: Repeat the request until the server responds. Do not respond to
the server may be down!
Soft: When the client's request cannot be responded, an
error message is returned after retry one time.
Bg: When the first request is unsuccessful, the second mount will be executed in the background.
Fg: retries mount has been performing
intr under the prompt symbol : when an NFS request is in progress, allow the keyboard to interrupt

🦑 the message when the mount is successful
NFS server hostname ok
hard mount fail
NFS server hostname not responding, still trying
soft... hostname server not reponding: RPC: Timed out

§ UNMOUNT:

umount mount_point
umount -a unmount all the paths already mounted

1) Declare the machine as a client without a drive or data. Before using SunInstall

2) Edit the file / etc / fstab and make sure that the paths to be mounted are in fstab

3) According to fstab Set the content, set Mount points on the client
(mount_points is the path exported by exports using mkdir)

4) Make sure that the path we want to mount is in / etc / exports

5) You can start the mount to link the directories on the server (mount -a)

/ etc / fstab Example of a file
● syntax filesystem directory type options freq pass
oak: / export / root / boomer / nfs rw 0 0
^^^
Because the file is on the server, not on client,
the client setting is 0
oak: / export / exec / sun3 / usr nfs ro 0 0
oak: / export / exec / kvm / sun3 / usr / kvm nfs ro 0 0
oak: / usr / share / usr / share nfs ro 0 0
oak: / home / oak / home / oak nfs rw, bg 0 0

🦑 How NFS Work?

When we start the NFS file server, /etc/rc.local will automatically launch the exportfs program, specifying the files or directories that can be exported And we can only mount the specified directory.



□ NFS is built on top of the XDR / RPC protocol.

XDR: (eXternal Data Representation) External data representation
XDR (eXternal Data Representation) provides a way to data from one format to another data format standard notation to ensure that different computer, operating system and computer language, meaning that all data are represented by the same

RPC: (Remote procedure calls) remote procedure call
RPC (Remote Procedure Calls) Remote procedure calls, requesting the remote computer to provide service. The client will send RPC to the remote computer through the network, requesting service.
(General local machine: client remote machine: server)

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NFS-Server-Client @UndercOdeTesting

12 hours

https://m.youtube.com/watch?v=WGJJIrtnfpk

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🦑UPX Unpacking Process
T.me/UndercOdeTesting


🦑Before we begin with unpacking exercise, lets try to understand the working of UPX.

1) When you pack any Executable with UPX, all existing sections (text, data, rsrc etc) are compressed.

2) Each of these sections are named as UPX0, UPX1 etc.

3) Then it adds new code section at the end of file which will actually decompress all the packed sections at execution time.

🦑Here is what happens during the execution of UPX packed EXE file..

1) Execution starts from new OEP (from newly added code section at the end of file)

2) First it saves the current Register Status using PUSHAD instruction

3) All the Packed Sections are Unpacked in memory

4) Resolve the import table of original executable file.

5) Restore the original Register Status using POPAD instruction

6) Finally Jumps to Original Entry point to begin the actual execution

🦑 Manual Unpacking of UPX

1) Here are the standard steps involved in any Unpacking operation

2) Debug the EXE to find the real OEP (Original Entry Point)

3) At OEP, Dump the fully Unpacked Program to Disk

4) Fix the Import Table

5) Based on type and complexity of Packer, unpacking operation may vary in terms of time and difficulty.

6) UPX is the basic Packer and serves as great example for anyone who wants to learn Unpacking.

🦑we will use OllyDbg to debug & unpack the UPX packed EXE file.
> Although you can use any debugger, OllyDbg is one of the best ring 3 debugger for Reverse Engineering with its useful plugins.

@UndercOdeOfficial
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