- OSCP Review - Proctored Version
- Setting up PostGresql Replication with Loadbalancing with PGPOOL II
- Rotate your video with ffmpeg
- Cut Video file with ffmpeg
- Configure postfix to use Sendgrid as default Relay
- Wordpress Admin Security
- Touch command tips and tricks
- Bash - Convert a comma separated list to any Array
- Random Wake up of Windows Machine from Sleep mode
- Installing newer or multiple version of python on Centos
- Postfix Queue Management
- Build 32 bit application or libraries on 64 bit machine
- Nagios Bash script to monitor Domain Expiration
- Resize Partition with parted
- Centos / Redhat 7 Switching back to iptables
- SELinux Tutorial
- New Apache : Authz_core:error Client Denied by Server Configuration
- Postfix - Sender address rejected: User unknown in virtual mailbox table
- Filtering capture files with wire shark
- Postfix Spam Control
- Postfix Commands
- Samba Share Fedora 20
- Mounting NTFS Filesystem
- NTP Reflection Attack
- VMware ESXI packet capture
- ZIP tips and tricks in Linux
- Root Alias with Qmail
- Chrooting Users with SFTP
- Iptables initial Configuration
- Log Messages with specific prefix to a separate file
- Download RPM Packages with yum
- Email Server Utilities
- Block Chinese Spam
- Php Display only number of characters from string
- Execute Windows Batch File from php
- Terminating a windows process with a Batch File
- Running a query without affecting slave
- Turn off ethernet negotiation Linux
- Open SSL commands
- MySQL root grant permission denied
- Printing Content past a specific string From a file
- yum update error: Error: pkgKey doesn't exist in repo base
- Enabling Passive FTP Connections through IPTABLES
- Bash Get Extension from filename
- Configure Postfix as a backup MX
- Remote Desktop Login Success / Failure Email Notification
- Accessing a URL protected by htpasswd (Basic Auth) with php
- Installing Gluster FileSystem in Centos
- Kamailio Errors and Solutions
- Kamailio Log Management
- Centos Net Install URLs
- Installing PHP Time Zone Database
- Implementing Disk Quota
- Disabling SELINUX
- Crontab Format
- Starting and Stopping NFS Service
- Bash script to check for valid IP
- Bash Command and output History
- Running interactive command or script over ssh
- Resize Image with Bash Script
- Using IFS variable in shell scripts
- Mounting Windows Share to Linux
- Linux filesystem check utility
- SED Tutorial with examples
- Gluster Filesystem Troubleshooting
- Apache - Disable script execution upload directory
- Linux Top Command
- Sample SPF Record for a single Email Server
- Shell Script to Check the Status of MySQL Replication
- Turn on ping response on windows servers with windows firewall turned on
- Manually Installing vmware remote console plugin
- cannot start session without errors
- Configure PPTP VPN Server
- VLAN
- Shell Script to Create and Grant Privilege to a new user
- Extending an LVM With FreeSpace
- Installing Mono Tools in Centos
- Mysqldump Tips and Tricks
- Starting and stopping vmware from linux shell
- Generate Certificate signing request (CSR) with openssl
- Permission denied: proxy: HTTP
- mysql master master replication with ssl encryption
- Changing ethernet name in Vmware
- Install OSsec on Centos
- Spam Filtering with postifx and pcre
- install rar unrar in centos
- Adding default gateway outside subnet
- Shell script to ssh to a remote host without specifying the port
- Apache rewrite sample rules
- Debug apache rewrite
- Bash one liners
- Samba Tutorial
- Archiving and compressing tuotorials tar and gzip
- Shell Script to Backup all tables separately
- Postfix Tips and Tricks
- Apache Rewrite Cheat Sheet
- Apache rewrite tutorials
- Install Redmine with ruby and thin on Centos
- bash script to cd to a path
- Javascript hide element on click
- Shell script to display recipient email from message id - postfix
- ftp access to files outside base directory
- Zabbix Installation guide
- Installing and configuring lighttpd with php support
- php tips and tricks
- Zabbix Tutorials
- Creating a NFS Share
- Shell Script to check filesize
- Shell scripting tutorials
- Regular Expressions
- FFMPEG Commands tips and tricks.
- Call a url from bash script
- Useful Find Commands
- Bash Script to check if a host is alive
- Adding a Start/Stop Script to chkconfig
- Export Putty Sessions
- Sample mysql queries
- Handling arguments in bash
- Handling parameters in Bash
- Check Load average
- Nice and Renice
- Shell Script to Backup and Rotate Mysql Database
- Writing Iptables rules by hand
- Sample Kickstart file for Redhat / Centos
- write to a file using php
- shell script to monitor port and notify by email
- One liner to change ssh port
- Shell script to run command on multiple servers
- C,C++ compiler cannot create executables
- System Monitoring , disk,cpu and memory
- connect to 127.0.0.1[127.0.0.1]:10024: Connection refused.
- Using remote mail server with postfix.
- Common Ports
- Iptables tutorial and examples
- Awk Tutorials and examples
- Using TcpDump to monitor network activity
- Adding colors to shell scripts
- Bash Tutorials and snippets
- Compile error : undefined reference to pthread_once and dlopen
- Shell Script to Calculate Memory Usage by A Process
- Bash Add numbers output in a shell
- Php Session Timeout
- Additional Yum Repositories
- Mysql Tips and Tricks
- Css Cheat Sheet
- Finding and optimizing fragmented tables in mysql
- Reset Postfix Admin password
- Shared Libraries
- Grep Tutorials
- Find Dell service tag
- cut awk
- Wget Tutorials
- Delete Master Boot Record (MBR)
- Compression Utilities
- Nagios Installation on Centos
- Apache Security
- Rootkit Hunter--check if your system has been compromised
- Securing Server with Iptables ( Block Except )
- Block Ports in IPtables
- Redirect or forward ports in iptables
- Optimize MySQL From my-large.cnf
- Monitoring Mysql Variables
- Password Protected tar files
- MySql Performance Tuning and utilities
- Clear network share password
- Create a swap file
- Css Quick Notes
- Delete all files except
- Mysql Troubleshooting
- php compile error configure: error: Cannot find libmysqlclient under /usr
- Rename mutiple files
- Shell script to backup/restore an existing svn repository
- PHP basic compile options when buidling from source
- Compile individual php module
- Compile mysql client library with utf 8 support
- Copy preserving symlinks
- Xuggler
- Label an Additional Parition
- Vmware Rescan Hard Drives
- Apache force use https
- Utilities Download
- Server Security Verification Tips and Tricks
- Using TCP Wrappers
- View Cronjobs For All Users
- Centos Testing Repo
- Mysql Master Master Replication
- List Installed perl modules
- Central Log Server with Rsyslog and Php Log Con with TLS/SSL with TCP
- Add new mysql slave to an existing replication
- Replicating An Existing Database MySQL
- MySQL Replication Switch Master/Slave
- apache init script
- Compiling an additional module for apache
- Uninstall Perl Module
- Yum Tips and Tricks
- View Last failed login attempts
- Tutorial on logrotate
- Shared Library errors
- Email Piping with Postfix
- Set server logs to be sent to an email address
- View Disk Usage for all directories
- Shell script to delete files and folders older than x days
- Test Hard Drive Health Status (SMART)
- Force Unmount busy drive
- Rebuild RPM Database
- Strange characters in pstree
- Putty Tips and Tricks
- Add Delete ip address to interface
- Email Notification on Login On Linux Machines
- Asterisk Tips
- Repair broken MySQL Replication
- Default Gateway issue with Multiple Network Cards
- Citrix Xen Center Tutorials
- Flush mail queue with various mail servers
- Install Postfix,mysql,Dovecot in Centos
- Remount Filesystem in Maintenance Mode (RW)
- Installing Cygwin
- String Manipulation in bash script
- Password Change Plugin with roundcubemail
- mysql grant privileges
- Add hard drive in xen center
- Split into array in bash
- Check Null string in bash
- asterisk convert sound to g729
- Php AGI For Asterisk
- Crontab Format
- Share a bash Shell using screen
- SSH Neat Tips and Tricks
- Password protect using htaccess
- Apache Deny access to files or extensions
- Deny Access from an IP
- Useful Find Tips and Tricks
- Load balancing in Apache
- Apache Prevent Directory Listing
- php preg match
- Export CSV Php
- Read post variables
- Block Sites by IP
- Rsync to synchronize directory
- Shell Script Disk Usage Notification
- Common Sendmail Issues
- Create an ISO image in linux
- View Extensions with Call forwarding enabled
- Cisco ACL - Insert New line
- Backup restore mysql database
- Sudo Tips and Tricks
- Vsftpd With Mysql backened
- Setting default group permission on a directory
- Set Time zone In Linux
- SCP
- Ip Authentication in Kamailio
- Create View for simplifying LCR tables
- Iptables Neat Tips
- Kamailio Nat Traversal using RTPProxy
- Using LCR with kamailio
- Compiling additional modules kamailio
- Using Ngrep To capture network activity
- Install kamailio from source Centos
- Rest Mysql root Password
- Using grep to display line that doesnot start with a pattern
- Use cron to sync time using ntp
- Sed Find a value between pattern
- Delete leading spaces vi
- Block by url and url keywords in squid
- Configure DNS Server With Views
- Substract file 1 content from file 2
- Remove Files from a List
- Vi editor Tutorial and examples
- Configure Linux As a router
- Cloning disk image in Vmware Server via Command
- Configuring a Dynamic DNS Server
- Passwordless SSH
- Change login background in windows 7
- Adding a machine to samba
- Creating Alternating colors in a table
- Asterisk Log to A File
- IO Redirection In Linux
- Installing A Custom Repo
- Asterisk VoiceMail DialPlan
- Asterisk Greetings Based on Time and Date
- Time based Dial Plans in Asterisk
- Asterisk–Creating an Auto Attendant
- RPM Uninstall error–multiple matches
- Accessing Microsoft SQL Database from Linux Boxes
- Export MySQL data to csv using php script
- Import CSV file to database using PHP
- Export result of MySQL Query to CSV Format