Jun 06, 2020:  Install and Configure WireGuard VPN
May 19, 2020:  Error: Unfortunately you can't have non-Gradle Java modules and > Android-Gradle modules in one project
May 17, 2020:  Install Kali Linux with PowerShell on Windows without Virtual Machine (WSL)
May 16, 2020:  Local Certificate Authority for Private Networks
May 16, 2020:  Upgrade ProxmoxVE 6.1 to 6.2 without Subscription
Apr 24, 2020:  Getting exit status of the command when using pipes
Apr 06, 2020:  Alpine with XFCE and VNC on a virtual machine
Mar 30, 2020:  Hosting HTTPS sites with Nginx
Mar 23, 2020:  Nginx - SSL Passthrough Reverse Proxy
Oct 17, 2018:  OSCP Review - Proctored Version
Jan 04, 2018:  Setting up PostGresql Replication with Loadbalancing with PGPOOL II
Oct 25, 2017:  Rotate your video with ffmpeg
Sep 08, 2016:  Cut Video file with ffmpeg
Sep 08, 2016:  Configure postfix to use Sendgrid as default Relay
Sep 02, 2016:  Wordpress Admin Security
May 20, 2016:  Touch command tips and tricks
May 20, 2016:  Bash - Convert a comma separated list to any Array
Aug 04, 2015:  Random Wake up of Windows Machine from Sleep mode
May 21, 2015:  Installing newer or multiple version of python on Centos
Apr 09, 2015:  Postfix Queue Management
Mar 19, 2015:  Build 32 bit application or libraries on 64 bit machine
Feb 18, 2015:  Nagios Bash script to monitor Domain Expiration
Jan 06, 2015:  Resize Partition with parted
Dec 14, 2014:  Centos / Redhat 7 Switching back to iptables
Sep 28, 2014:  SELinux Tutorial
Sep 28, 2014:  New Apache : Authz_core:error Client Denied by Server Configuration
Sep 28, 2014:  Postfix - Sender address rejected: User unknown in virtual mailbox table
Sep 04, 2014:  Filtering capture files with wire shark
Aug 08, 2014:  Postfix Spam Control
Aug 08, 2014:  Postfix Commands
Jul 10, 2014:  Samba Share Fedora 20
Jul 10, 2014:  Mounting NTFS Filesystem
Apr 29, 2014:  NTP Reflection Attack
Apr 29, 2014:  VMware ESXI packet capture
Feb 12, 2014:  ZIP tips and tricks in Linux
Jan 15, 2014:  Root Alias with Qmail
Jul 12, 2013:  Chrooting Users with SFTP
Jun 25, 2013:  Iptables initial Configuration
May 20, 2013:  Log Messages with specific prefix to a separate file
Apr 05, 2013:  Download RPM Packages with yum
Apr 01, 2013:  Email Server Utilities
Mar 17, 2013:  Block Chinese Spam
Mar 08, 2013:  Php Display only number of characters from string
Mar 08, 2013:  Execute Windows Batch File from php
Mar 08, 2013:  Terminating a windows process with a Batch File
Feb 17, 2013:  Running a query without affecting slave
Feb 09, 2013:  Turn off ethernet negotiation Linux
Feb 09, 2013:  Open SSL commands
Feb 09, 2013:  MySQL root grant permission denied
Jan 31, 2013:  Printing Content past a specific string From a file
Jan 31, 2013:  yum update error: Error: pkgKey doesn't exist in repo base
Jan 30, 2013:  Enabling Passive FTP Connections through IPTABLES
Jan 09, 2013:  Bash Get Extension from filename
Jan 01, 2013:  Configure Postfix as a backup MX
Nov 09, 2012:  Remote Desktop Login Success / Failure Email Notification
Nov 08, 2012:  Accessing a URL protected by htpasswd (Basic Auth) with php
Nov 08, 2012:  Installing Gluster FileSystem in Centos
Nov 03, 2012:  Kamailio Errors and Solutions
Nov 03, 2012:  Kamailio Log Management
Nov 02, 2012:  Centos Net Install URLs
Nov 02, 2012:  Installing PHP Time Zone Database
Nov 01, 2012:  Implementing Disk Quota
Nov 01, 2012:  Disabling SELINUX
Oct 27, 2012:  Crontab Format
Oct 18, 2012:  Starting and Stopping NFS Service
Oct 18, 2012:  Bash script to check for valid IP
Oct 17, 2012:  Bash Command and output History
Oct 17, 2012:  Running interactive command or script over ssh
Oct 02, 2012:  Resize Image with Bash Script
Sep 06, 2012:  Using IFS variable in shell scripts
Sep 06, 2012:  Mounting Windows Share to Linux
Aug 27, 2012:  Linux filesystem check utility
Jul 24, 2012:  SED Tutorial with examples
Jul 12, 2012:  Gluster Filesystem Troubleshooting
Jul 02, 2012:  Apache - Disable script execution upload directory
Jul 01, 2012:  Linux Top Command
Jun 30, 2012:  Sample SPF Record for a single Email Server
Jun 30, 2012:  Shell Script to Check the Status of MySQL Replication
Jun 23, 2012:  Turn on ping response on windows servers with windows firewall turned on
Jun 23, 2012:  Manually Installing vmware remote console plugin
Jun 02, 2012:  cannot start session without errors
May 02, 2012:  Configure PPTP VPN Server
Apr 15, 2012:  VLAN
Mar 10, 2012:  Shell Script to Create and Grant Privilege to a new user
Feb 20, 2012:  Extending an LVM With FreeSpace
Feb 20, 2012:  Installing Mono Tools in Centos
Jan 30, 2012:  Mysqldump Tips and Tricks
Jan 29, 2012:  Starting and stopping vmware from linux shell
Jan 27, 2012:  Generate Certificate signing request (CSR) with openssl
Jan 21, 2012:  Permission denied: proxy: HTTP
Jan 21, 2012:  mysql master master replication with ssl encryption
Jan 19, 2012:  Changing ethernet name in Vmware
Jan 19, 2012:  Install OSsec on Centos
Jan 16, 2012:  Spam Filtering with postifx and pcre
Jan 15, 2012:  install rar unrar in centos
Jan 12, 2012:  Adding default gateway outside subnet
Jan 10, 2012:  Shell script to ssh to a remote host without specifying the port
Jan 05, 2012:  Apache rewrite sample rules
Jan 05, 2012:  Debug apache rewrite
Dec 18, 2011:  Bash one liners
Dec 18, 2011:  Samba Tutorial
Dec 14, 2011:  Archiving and compressing tuotorials tar and gzip
Dec 08, 2011:  Shell Script to Backup all tables separately
Dec 08, 2011:  Postfix Tips and Tricks
Dec 06, 2011:  Apache Rewrite Cheat Sheet
Dec 06, 2011:  Apache rewrite tutorials
Dec 05, 2011:  Install Redmine with ruby and thin on Centos
Nov 23, 2011:  bash script to cd to a path
Nov 23, 2011:  Javascript hide element on click
Nov 23, 2011:  Shell script to display recipient email from message id - postfix
Nov 22, 2011:  ftp access to files outside base directory
Nov 22, 2011:  Zabbix Installation guide
Nov 22, 2011:  Installing and configuring lighttpd with php support
Nov 21, 2011:  php tips and tricks
Nov 19, 2011:  Zabbix Tutorials
Nov 18, 2011:  Creating a NFS Share
Nov 15, 2011:  Shell Script to check filesize
Nov 13, 2011:  Shell scripting tutorials
Nov 12, 2011:  Regular Expressions
Nov 11, 2011:  FFMPEG Commands tips and tricks.
Nov 11, 2011:  Call a url from bash script
Nov 11, 2011:  Useful Find Commands
Nov 09, 2011:  Bash Script to check if a host is alive
Nov 08, 2011:  Adding a Start/Stop Script to chkconfig
Nov 07, 2011:  Export Putty Sessions
Nov 07, 2011:  Sample mysql queries
Nov 05, 2011:  Handling arguments in bash
Nov 05, 2011:  Handling parameters in Bash
Nov 04, 2011:  Check Load average
Nov 02, 2011:  Nice and Renice
Nov 01, 2011:  Shell Script to Backup and Rotate Mysql Database
Oct 31, 2011:  Writing Iptables rules by hand
Oct 30, 2011:  Sample Kickstart file for Redhat / Centos
Oct 28, 2011:  write to a file using php
Oct 26, 2011:  shell script to monitor port and notify by email
Oct 25, 2011:  One liner to change ssh port
Oct 24, 2011:  Shell script to run command on multiple servers
Oct 21, 2011:  C,C++ compiler cannot create executables
Oct 21, 2011:  System Monitoring , disk,cpu and memory
Oct 21, 2011:  connect to 127.0.0.1[127.0.0.1]:10024: Connection refused.
Oct 19, 2011:  Using remote mail server with postfix.
Oct 19, 2011:  Common Ports
Oct 19, 2011:  Iptables tutorial and examples
Oct 19, 2011:  Awk Tutorials and examples
Oct 17, 2011:  Using TcpDump to monitor network activity
Oct 16, 2011:  Adding colors to shell scripts
Oct 16, 2011:  Bash Tutorials and snippets
Oct 16, 2011:  Compile error : undefined reference to pthread_once and dlopen
Oct 14, 2011:  Shell Script to Calculate Memory Usage by A Process
Oct 14, 2011:  Bash Add numbers output in a shell
Oct 14, 2011:  Php Session Timeout
Oct 13, 2011:  Additional Yum Repositories
Oct 11, 2011:  Mysql Tips and Tricks
Oct 01, 2011:  Css Cheat Sheet
Oct 01, 2011:  Finding and optimizing fragmented tables in mysql
Sep 27, 2011:  Reset Postfix Admin password
Sep 27, 2011:  Shared Libraries
Sep 23, 2011:  Grep Tutorials
Sep 23, 2011:  Find Dell service tag
Sep 23, 2011:  cut awk
Sep 23, 2011:  Wget Tutorials
Sep 23, 2011:  Delete Master Boot Record (MBR)
Sep 23, 2011:  Compression Utilities
Sep 20, 2011:  Nagios Installation on Centos
Sep 20, 2011:  Apache Security
Sep 19, 2011:  Rootkit Hunter--check if your system has been compromised
Sep 18, 2011:  Securing Server with Iptables ( Block Except )
Sep 15, 2011:  Block Ports in IPtables
Sep 15, 2011:  Redirect or forward ports in iptables
Sep 14, 2011:  Optimize MySQL From my-large.cnf
Sep 14, 2011:  Monitoring Mysql Variables
Sep 13, 2011:  Password Protected tar files
Sep 12, 2011:  MySql Performance Tuning and utilities
Sep 07, 2011:  Clear network share password
Sep 06, 2011:  Create a swap file
Sep 04, 2011:  Css Quick Notes
Sep 03, 2011:  Delete all files except
Sep 01, 2011:  Mysql Troubleshooting
Aug 31, 2011:  php compile error configure: error: Cannot find libmysqlclient under /usr
Aug 31, 2011:  Rename mutiple files
Aug 31, 2011:  Shell script to backup/restore an existing svn repository
Aug 29, 2011:  PHP basic compile options when buidling from source
Aug 29, 2011:  Compile individual php module
Aug 29, 2011:  Compile mysql client library with utf 8 support
Aug 29, 2011:  Copy preserving symlinks
Aug 26, 2011:  Xuggler
Aug 25, 2011:  Label an Additional Parition
Aug 25, 2011:  Vmware Rescan Hard Drives
Aug 23, 2011:  Apache force use https
Aug 21, 2011:  Utilities Download
Aug 20, 2011:  Server Security Verification Tips and Tricks
Aug 19, 2011:  Using TCP Wrappers
Aug 19, 2011:  View Cronjobs For All Users
Aug 18, 2011:  Centos Testing Repo
Aug 18, 2011:  Mysql Master Master Replication
Aug 18, 2011:  List Installed perl modules
Aug 17, 2011:  Central Log Server with Rsyslog and Php Log Con with TLS/SSL with TCP
Aug 16, 2011:  Add new mysql slave to an existing replication
Aug 16, 2011:  Replicating An Existing Database MySQL
Aug 16, 2011:  MySQL Replication Switch Master/Slave
Aug 12, 2011:  apache init script
Aug 12, 2011:  Compiling an additional module for apache
Aug 12, 2011:  Uninstall Perl Module
Aug 11, 2011:  Yum Tips and Tricks
Aug 11, 2011:  View Last failed login attempts
Aug 11, 2011:  Tutorial on logrotate
Aug 10, 2011:  Shared Library errors
Aug 07, 2011:  Email Piping with Postfix
Aug 04, 2011:  Set server logs to be sent to an email address
Aug 03, 2011:  View Disk Usage for all directories
Aug 03, 2011:  Shell script to delete files and folders older than x days
Aug 03, 2011:  Test Hard Drive Health Status (SMART)
Aug 02, 2011:  Force Unmount busy drive
Aug 01, 2011:  Rebuild RPM Database
Aug 01, 2011:  Strange characters in pstree
Jul 31, 2011:  Putty Tips and Tricks
Jul 30, 2011:  Add Delete ip address to interface
Jul 29, 2011:  Email Notification on Login On Linux Machines
Jul 27, 2011:  Asterisk Tips
Jul 22, 2011:  Repair broken MySQL Replication
Jul 22, 2011:  Default Gateway issue with Multiple Network Cards
Jul 19, 2011:  Citrix Xen Center Tutorials
Jul 19, 2011:  Flush mail queue with various mail servers
Jul 15, 2011:  Install Postfix,mysql,Dovecot in Centos
Jul 15, 2011:  Remount Filesystem in Maintenance Mode (RW)
Jul 13, 2011:  Installing Cygwin
Jul 12, 2011:  String Manipulation in bash script
Jul 11, 2011:  Password Change Plugin with roundcubemail
Jul 11, 2011:  mysql grant privileges
Jul 08, 2011:  Add hard drive in xen center
Jul 08, 2011:  Split into array in bash
Jul 08, 2011:  Check Null string in bash
Jun 28, 2011:  asterisk convert sound to g729
Jun 24, 2011:  Php AGI For Asterisk
Jun 23, 2011:  Crontab Format
Jun 21, 2011:  Share a bash Shell using screen
Jun 21, 2011:  SSH Neat Tips and Tricks
Jun 20, 2011:  Password protect using htaccess
Jun 19, 2011:  Apache Deny access to files or extensions
Jun 19, 2011:  Deny Access from an IP
Jun 19, 2011:  Useful Find Tips and Tricks
Jun 16, 2011:  Load balancing in Apache
Jun 15, 2011:  Apache Prevent Directory Listing
Jun 15, 2011:  php preg match
Jun 15, 2011:  Export CSV Php
Jun 15, 2011:  Read post variables
Jun 15, 2011:  Block Sites by IP
Jun 14, 2011:  Rsync to synchronize directory
Jun 06, 2011:  Shell Script Disk Usage Notification
Jun 06, 2011:  Common Sendmail Issues
Jun 04, 2011:  Create an ISO image in linux
May 31, 2011:  View Extensions with Call forwarding enabled
Apr 21, 2011:  Cisco ACL - Insert New line
Apr 14, 2011:  Backup restore mysql database
Apr 07, 2011:  Sudo Tips and Tricks
Apr 01, 2011:  Vsftpd With Mysql backened
Mar 30, 2011:  Setting default group permission on a directory
Mar 15, 2011:  Set Time zone In Linux
Feb 24, 2011:  SCP
Feb 10, 2011:  Ip Authentication in Kamailio
Feb 09, 2011:  Create View for simplifying LCR tables
Feb 06, 2011:  Iptables Neat Tips
Feb 06, 2011:  Kamailio Nat Traversal using RTPProxy
Feb 04, 2011:  Using LCR with kamailio
Feb 04, 2011:  Compiling additional modules kamailio
Feb 03, 2011:  Using Ngrep To capture network activity
Feb 02, 2011:  Install kamailio from source Centos
Feb 02, 2011:  Rest Mysql root Password
Dec 21, 2010:  Using grep to display line that doesnot start with a pattern
Dec 14, 2010:  Use cron to sync time using ntp
Oct 11, 2010:  Sed Find a value between pattern
Sep 28, 2010:  Delete leading spaces vi
Sep 26, 2010:  Block by url and url keywords in squid
Aug 31, 2010:  Configure DNS Server With Views
Aug 12, 2010:  Substract file 1 content from file 2
Aug 12, 2010:  Remove Files from a List
Aug 12, 2010:  Vi editor Tutorial and examples
Jul 27, 2010:  Configure Linux As a router
Jul 20, 2010:  Cloning disk image in Vmware Server via Command
Jul 19, 2010:  Configuring a Dynamic DNS Server
Jun 08, 2010:  Passwordless SSH
May 26, 2010:  Change login background in windows 7
May 24, 2010:  Adding a machine to samba
May 04, 2010:  Creating Alternating colors in a table
Apr 20, 2010:  Asterisk Log to A File
Apr 16, 2010:  IO Redirection In Linux
Apr 15, 2010:  Installing A Custom Repo
Apr 09, 2010:  Asterisk VoiceMail DialPlan
Apr 09, 2010:  Asterisk Greetings Based on Time and Date
Apr 09, 2010:  Time based Dial Plans in Asterisk
Apr 09, 2010:  Asterisk–Creating an Auto Attendant
Apr 08, 2010:  RPM Uninstall error–multiple matches
Apr 06, 2010:  Accessing Microsoft SQL Database from Linux Boxes
Apr 06, 2010:  Export MySQL data to csv using php script
Apr 06, 2010:  Import CSV file to database using PHP
Apr 06, 2010:  Export result of MySQL Query to CSV Format