Our FAQ section has been updated. Here are latest howtos:

• 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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In Linux and UNIX system services are configured using various text files located in /etc/ or /usr/local/etc/ directory tree. A typical server system could have dozens of configuration files. You can check your configuration files for syntax errors without starting the server and validate all settings. In some cases, it is possible to check the sanity of specific data/config options and directories. Text files are easier to manage remotely. You can use ssh and a text editor. If there is an error in configuration, the server may not start. It may result in a disaster. This post explains how to quickly find out a syntax error for popular servers and test configuration file for syntax errors.
[continue reading…]

Our FAQ section has been updated. Here are latest howtos:

• 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 ]
• Mediawiki PHP Fatal error: Cannot redeclare wfProfileIn() Error and Solution

Make the most of nixCraft FAQ Section

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Our FAQ section is updated in last few days with new howto:

• 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
• Linux: Reset High Speed USB Device Using ehci_hcd Error and Solution

Make the most of nixCraft FAQ Section

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PHP is an open-source server-side scripting language, and it is a widely used. The Apache/Nginx/Lighttpd web server provides access to files and content via the HTTP OR HTTPS protocol. A misconfigured server-side scripting language can create all sorts of problems. So, PHP should be used with caution. Here are twenty-five php security best practices for Linux and Unix sysadmins for configuring PHP securely.
[continue reading…]

Our FAQ section is updated in last few days with new howtos:

• Lighttpd: network.c:483: error: ‘EC_KEY’ undeclared (first use in this function) Error and Solution
• memcached: Failed To Set rlimit For Open Files Error and Solution
• 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
• Linux / Unix: Find Out What tty I’m Using
• Debian / Ubuntu Linux: Setup NFSv4 File Server

Make the most of nixCraft FAQ Section

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Our FAQ section is updated in last few days with new howtos:

• RHEL / CentOS Linux: Mount and Access NTFS Partition
• JBD: Barrier-based Sync Failed On md0-8 – Disabling Barriers Error and Solution
• Mac OS X: Move the Dock and Menu Bar To External Display
• CentOS / RHEL: Install gpass Password Manager For GNOME2 Desktop
• RHEL 6 / CentOS 6: Install Adobe Flash Player For Firefox Browser
• rpmbuild: error: Installed (but unpackaged) file(s) found Solution
• HowTo: Create Slackware Linux Bootable USB Pen Drive
• Linux Delete / Remove MBR
• Linux Download Password Protected Large ISO Images [ Authentication Credentials ]
• OpenBSD: Install Firefox Web Browser

FAQ & Howtos RSS Feed

Get intimated about our new howtos / faqs as soon as it is released via RSS feed.

Our FAQ section is updated in last few days with new howtos:

• Nginx: 413 Request Entity Too Large Error and Solutio
• TCSH / CSH / C Shell Check Whether a Directory is Empty or Not
• Slow DNS on Linux with IPv4 and IPV6 Configured Firewall
• Linux: Dell Server / Desktop / Laptop Find Out Service Tag Command
• yum Command Hangs on Running Transaction Test Message Error and Solution
• Linux: Find All File Descriptors Used By a Process
• Sendmail: Clear / Delete / Flush Mail Queue

Our FAQ section is updated in last few days with new howtos:

• Linux / UNIX: Smartctl Check Hard Disk Behind 3Ware RAID Card
• Bash Shell Count Number of Characters In a String or Word
• HowTo: Find Out KSH ( Korn Shell ) Version
• Linux: Delete / Remove User Account
• No xauth Program; Cannot Forward With Spoofing Error and Solution
• RHEL Warning: RPMDB altered outside of yum
• RHEL / CentOS / Fedora: Verify GPG Key For Package Update
• VI / VIM: Open File And Go To Specific Function or Line Number
• Linux Find Out Kernel Module (Device Driver) Version Number
• Linux /boot: Out of Disk Space While Installing Package kernel-2.6.32-131.2.1.el6.x86_64
• Bash C Style For Loop Example and Syntax
• Backtrack 5 KDE startx Failed To Load Error and Solution
• Linux Command: Put Laptop / Netbook In Hibernate / Suspend Mode
• Linux: What is Dash ( /bin/dash ) Shell?

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