• WordPress: Disable Post Revisions / Turn Off Revisions
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• HowTo: Install firefox-13.0.tar.bz2 in Linux
• Unix Copy Command Examples [ cp command ]
• CentOS / RHEL CacheFS: Speed Up Network File System (NFS) File Access
• Linux / Unix: Generate A MD5 String
• Open Gnome Nautilus File Manager For The Current Linux / Unix Command Line
• FreeBSD: Install zsh Shell
• Debian Linux: Install Virtualbox Virtualization Software
• WordPress: Change Author ID / Attribution On All Posts In a Single Pass
• Linux / Unix: Bash Shell See All Exported Variables and Functions
• Mount CD-ROM / DVD in HP-UX Unix
• Ubuntu Linux: Add a User To Group
• CentOS / RHEL: Disable or Enable SELinux Policy Modules
• HowTo: Open a Tar.gz File In Linux / Unix
• Linux / Unix: Find Inode Of a File Command
• HowTo: Unix / Linux Remove (Delete) OpenSSH Server
• Unix / Linux: grep Word Count Command
• HowTo: Change Password of Specific User Account In Linux
• Linux: HowTo Check User Password Expiration Date and Time
• Unix HowTo: Start / Stop / Restart Network Service Command
• Linux Reboot Command Example
• Apple OS X: Remove a Symbolic Link (Symlink) Command
• Linux / Unix Command To Find Out NFS Clients Connected To My NFS Server

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• Bash source Command: $0 Can Not Determine It’s Own Location
• Unix / Linux: Display Color Man Pages
• Linux / Unix: Colored Man Pages With less Command
• Linux Command: List All Users In The System
• OpenSSH: ssh-add / ssh-agent Command Set Maximum Lifetime In Seconds
• HowTo: Nginx Block User Agent
• Unix / Linux Shell: Get Third Field Separated by Forward Slash (/) Delimiter
• HowTo: Find Out DNS Server IP Address Used By My Router?
• Bash: Assign Output of Shell Command To Variable
• Where Is The Xorg.conf File Located under Unix / Linux / BSD?
• HowTo: Set Readonly File Permissions On Linux / Unix
• Linux / Unix: Show Shares on NFS Server [ Shared Directories ]
• Bash Shell: Check File Exists or Not
• HowTo: Shutdown Linux System
• HowTo: Iterate Bash For Loop Variable Range Under Unix / Linux
• HowTo: Install ssh In Linux
• Linux / Unix AWK: Read a Text File
• Howto: Send The Content Of a Text File Using mail Command In Unix / Linux
• Could not chdir to home directory /root: No such file or directory Error and Solution

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• Linux / Unix: scp Copy All Hidden Dot Files
• Unix / Linux: Find Information About The Process Including All Command Line Parameters
• Carry Private SSH RSA / DSA Key For Connection Using Unix / Linux Shell Script
• Rsync: Preserve / Copy Hard Links ( Backup Rsnapshot Directory Tree )
• Error While Loading Shared Libraries: libgobject-2.0.so.0 Error and Solution [ Debian / Ubuntu ]
• Linux Network Statistics Tools / Commands
• Linux Find Out GNU gcc Compiler Version Used To Compile Running Kernel
• Linux / Unix: Find Out Maximum RAM Supported By The Server BIOS / Motherboard
• Linux / Unix Shell Scripting: Create Filename By Day Of The Week
• Red Hat / CentOS Command To Find Dell Service Tag
• Linux / Unix Shell: Set Default Printer
• HowTo: Flush Contents Of a Memcached Server Using Command Line
• CentOS / RHEL / Scientific Linux 6 Enable (Install) EPEL Repo
• RHEL / CentOS 6 Linux Install Memcached High Performance Distributed Memory Object Cache Server
• Linux / Unix: Sed Substitute Multiple Patterns [ Find & Replace ]
• Reload Squid Proxy Server Without Restarting Squid Daemon
• Linux / Unix: SysVinit Services Restart vs Reload vs Condrestart
• Linux: Find Out Open Files [ Descriptors ] Command
• Linux / Unix: Disable OpenSSH Host Key Checking
• CentOS / RHEL: yum Command Reinstall Package
• CentOS / RHEL: Change / Copy File SELinux Security Context Command
• RHEL / CentOS Yum Command: Blacklist Packages [ Disable Certain Packages ]
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• Linux: Find Out What Partition a File Belongs To
• Linux: Neighbour Table Overflow Error and Solution
• Linux: Run fsck On LUKS (dm-crypt) Based LVM Physical Volume
• HowTo Run a Script In Linux
• HowTo Install firefox-8.0.tar.bz2 in Linux
• Linux / Unix curl: Pass HTTP Referer
• CentOS / RHEL: Remove Routes 169.254.0.0 / 255.255.0.0 From the System
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• Lighttpd: network.c:483: error: ‘EC_KEY’ undeclared (first use in this function) Error and Solution
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• Mplayer Shuffle Command: Play Files In Random Order
• Bash Shell: Find Out If a Variable Is Set or Not
• Linux: Mount Disk Partition Using LABEL
• Linux / UNIX: HowTo Empty Directory
• Linux / Unix: Tarball Delete ( remove ) File
• KSH: Import File With Variables and Functions
• Debian Linux: Change Hostname / Computer Name Permanently
• SSH: Agent Admitted Failure To Sign Using The Key Error And Solution
• Linux / Unix: Bash Find Matching All Dot Files
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• Debian / Ubuntu Linux: Setup NFSv4 File Server

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• RHEL / CentOS Linux: Mount and Access NTFS Partition
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• RHEL 6 / CentOS 6: Install Adobe Flash Player For Firefox Browser
• rpmbuild: error: Installed (but unpackaged) file(s) found Solution
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• Nginx: 413 Request Entity Too Large Error and Solutio
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• Linux / UNIX: Smartctl Check Hard Disk Behind 3Ware RAID Card
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(25 more howts and faqs...)]]> http://www.cyberciti.biz/tips/faq-updates-%e2%80%93-feb072010.html/feed 3 http://www.cyberciti.biz/tips/google-public-dns-servers-launched.html http://www.cyberciti.biz/tips/google-public-dns-servers-launched.html#comments Thu, 03 Dec 2009 19:43:55 +0000 nixCraft http://www.cyberciti.biz/tips/?p=6122 Today, Google has announced the launch of their free DNS resolution service. Many ISPs and 3rd party provider such as OpenDNS snoops around or send traffic to ad servers. However, Google promises not to play with end users and send the exact response his or her computer expects without performing any blocking, filtering, or redirection that may hamper a user's browsing experience. In other words Google will not hijacking your traffic on non-existent domain name and it will follow strict RFC standard. ]]> http://www.cyberciti.biz/tips/google-public-dns-servers-launched.html/feed 33 http://www.cyberciti.biz/tips/freebsd-8-0-review-enterprise-ready-server-operating-system.html http://www.cyberciti.biz/tips/freebsd-8-0-review-enterprise-ready-server-operating-system.html#comments Thu, 26 Nov 2009 12:50:11 +0000 nixCraft http://www.cyberciti.biz/tips/?p=6044 The FreeBSD Project is one of the oldest and successful project. FreeBSD is well known for its reliability, robustness, and performance.

A new version of the FreeBSD 8 is scheduled for release this week. A RC3 was made available for download few weeks ago for final round of testing before the official launch. nixCraft takes you for an in-depth look at the new features and major architectural changes in FreeBSD v8.0.]]> http://www.cyberciti.biz/tips/freebsd-8-0-review-enterprise-ready-server-operating-system.html/feed 7 http://www.cyberciti.biz/tips/repetitive-strain-injury-prevention-software.html http://www.cyberciti.biz/tips/repetitive-strain-injury-prevention-software.html#comments Wed, 04 Nov 2009 05:21:00 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5950 Repetitive strain injury (RSI) is occupational overuse syndrome, non-specific arm pain or work related upper limb disorder. RSI caused from overusing the hands to perform a repetitive task, such as typing, writing, or clicking a mouse. Unfortunately, most people do not understand what RSI is or how serious it can be. You can easily prevent RSI using open source software called Workrave.]]> http://www.cyberciti.biz/tips/repetitive-strain-injury-prevention-software.html/feed 14 http://www.cyberciti.biz/tips/linux-security.html http://www.cyberciti.biz/tips/linux-security.html#comments Fri, 30 Oct 2009 07:52:11 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5687 Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers (hackers). The system administrator is responsible for security Linux box. In this first part of a Linux server security series, I will provide 20 hardening tips for default installation of Linux system.]]> http://www.cyberciti.biz/tips/linux-security.html/feed 116 http://www.cyberciti.biz/tips/use-linux-live-cd-usb-for-online-banking.html http://www.cyberciti.biz/tips/use-linux-live-cd-usb-for-online-banking.html#comments Thu, 15 Oct 2009 12:53:55 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5791 Internet has revolutionized the way online users can shop and avail banking services like internet Banking from anywhere, anytime without visiting bank. But, how safe is your money with online net-banking which allows to carry out money transfer? Companies and in some case individuals lost anywhere from $10,000 to $500,000 dollars because of a single malware infection. The cyber crooks are targeting innocent MS-Windows user. If you are concerned about how best to protect yourself from this type of fraud, use Linux LiveCD for online banking and avoid Microsoft Windows at all cost.]]> http://www.cyberciti.biz/tips/use-linux-live-cd-usb-for-online-banking.html/feed 6 http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html#comments Wed, 29 Jul 2009 15:47:12 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5570 BIND 9 is an implementation of the Domain Name System (DNS) protocols. named daemon is an Internet Domain Name Server for UNIX like operating systems. Dynamic update messages may be used to update records in a master zone on a nameserver. When named receives a specially crafted dynamic update message an internal assertion check is triggered which causes named to exit. An attacker which can send DNS requests to a nameserver can cause it to exit, thus creating a Denial of Service situation. configuring named to ignore dynamic updates is NOT sufficient to protect it from this vulnerability. This exploit is public. Please upgrade immediately.]]> http://www.cyberciti.biz/tips/bind-dynamic-update-dos.html/feed 7 http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html#comments Fri, 24 Jul 2009 21:49:43 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5489 OpenSSH is the implementation of the SSH protocol. OpenSSH is recommended for remote login, making backups, remote file transfer via scp or sftp, and much more. SSH is perfect to keep confidentiality and integrity for data exchanged between two networks and systems. However, the main advantage is server authentication, through the use of public key cryptography. From time to time there are rumors about OpenSSH zero day exploit. Here are a few things you need to tweak in order to improve OpenSSH server security.]]> http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html/feed 134 http://www.cyberciti.biz/tips/open-source-project-management-software.html http://www.cyberciti.biz/tips/open-source-project-management-software.html#comments Sun, 19 Jul 2009 19:18:10 +0000 nixCraft http://www.cyberciti.biz/tips/?p=5477 Project management software is not just for managing software based project. It can be used for variety of other tasks too. The web-based software must provide tools for planning, organizing and managing resources to achieve project goals and objectives. A web-based project management software can be accessed through an intranet or WAN / LAN using a web browser. You don't have to install any other software on the system. The software can be easy of use with access control features (multi-user). I use project management software for all of our projects (for e.g. building a new cluster farm) for issue / bug-tracking, calender, gantt charts, email notification and much more.

Obviously I'm not the only user, the following open source software is used by some of the biggest research organizations and companies world wild. For e.g. NASA's Jet Propulsion Laboratory uses track software or open source project such as lighttpd / phpbb use redmine software to keep track of their projects.]]> http://www.cyberciti.biz/tips/open-source-project-management-software.html/feed 85