FAQ Updates – May/27/2011

Posted on in Categories Sys admin last updated May 26, 2011

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

  1. Linux Find Out CPU Architecture Information
  2. Gnome Network Manager VPN Tab Disabled ( Greyed out )
  3. Gnome Volume Control: Disabled Sound Themes
  4. Debian Linux (Squeeze) Install Firefox 4
  5. UNIX: Find Out the Server Model
  6. Linux / UNIX: Run Command a Number of Times In a Row
  7. Linux: TMOUT To Automatically Log Users Out
  8. RHEL 6: Change OpenSSH Port To 1255 ( SELinux Config )
  9. RHEL 6: semanage SELinux Command Not Found
  10. HowTo: UNIX Set Date and Time Command

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Google Public DNS Servers Launched

Posted on in Categories Linux, Linux desktop, Networking, News, OS X, RedHat/Fedora Linux, Sys admin, Windows, windows vista last updated December 3, 2009

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.

FreeBSD 8.0 Review: Enterprise Ready Server Operating System

Posted on in Categories FreeBSD, News, Sys admin last updated November 26, 2009

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.

Linux / Windows Application For Prevention Of RSI (Repetitive Strain Injury)

Posted on in Categories Debian Linux, Download of the day, Gentoo Linux, Gnome, GNU/Open source, Howto, Linux, Linux desktop, RedHat/Fedora Linux, Software, Sys admin, Ubuntu Linux, UNIX, Windows, windows vista last updated November 4, 2009
workrave-image

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.

20 Linux Server Hardening Security Tips

Posted on in Categories Debian Linux, fedora linux, Gentoo Linux, GNU/Open source, Howto, Linux, Monitoring, Networking, package management, RedHat/Fedora Linux, Security, Suse Linux, Sys admin, Tips, Ubuntu Linux last updated October 30, 2009

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.

Use a Linux LiveCD to Avoid Windows Malware For Netbanking

Posted on in Categories Apache, Debian Linux, Howto, Linux, Linux desktop, RedHat/Fedora Linux, Security, Sys admin, Tips, Ubuntu Linux, UNIX, Windows, windows vista last updated October 15, 2009

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.

BIND 9 Dynamic Update DoS Security Update

Posted on in Categories BIND Dns, CentOS, Debian Linux, fedora linux, FreeBSD, Howto, Linux, Networking, package management, RedHat/Fedora Linux, Security, Solaris, Suse Linux, Sys admin, UNIX, Windows server last updated July 29, 2009

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.

Top 20 OpenSSH Server Best Security Practices

Posted on in Categories CentOS, Debian Linux, fedora linux, FreeBSD, Gentoo Linux, Howto, Linux, Networking, package management, RedHat/Fedora Linux, Security, Suse Linux, Sys admin, Tips, Ubuntu Linux, UNIX last updated July 24, 2009
Don't tell anyone that I'm free

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.