Download CentOS 6.1 CD / DVD ISO

Posted on in Categories CentOS, Download of the day last updated December 12, 2011

CentOS Linux version 6.1 has been released and available for the download. It is a community-supported operating system based on Red Hat Enterprise Linux (RHEL) version 6.1. CentOS Linux is considered as the most popular Linux distribution for web servers and general purposes usage.

FAQ Updates: Sep/05/2011

Posted on in Categories FAQ, Sys admin last updated September 5, 2011

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

FAQ & Howtos RSS Feed

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

Download of the day: OpenBSD 4.6 CD ISO Images

Posted on in Categories Download of the day, OpenBSD last updated October 19, 2009

OpenBSD 4.6 has been released and available for download from the official website. OpenBSD is well known for record of more than ten years with only two remote holes in the default install. The OpenBSD is widely known for the quality open source code and documentation, uncompromising position on software licensing, and focus on security and code correctness.

FreeBSD 7.2RC Released

Posted on in Categories FreeBSD, Hardware, Howto, Networking, News last updated January 25, 2009

The second of two planned Release Candidates for the FreeBSD 7.2-RELEASE cycle is now available. ISO images for Tier-1 architectures are now available on most of the FreeBSD mirror sites.

The freebsd-update(8) utility supports binary upgrades of i386 and amd64
systems running earlier FreeBSD releases. Systems running 7.0-RELEASE,
7.1-RELEASE, 7.2-BETA1, or 7.2-RC1 can upgrade as follows:

# freebsd-update upgrade -r 7.2-RC2

During this process, FreeBSD Update may ask the user to help by merging
some configuration files or by confirming that the automatically performed
merging was done correctly.

# freebsd-update install

The system must be rebooted with the newly installed kernel before continuing.
# shutdown -r now

After rebooting, freebsd-update needs to be run again to install the new
userland components, and the system needs to be rebooted again:

# freebsd-update install
# shutdown -r now

Download of the day: Netbsd 4.0 CD ISO Image

Posted on in Categories Download of the day last updated December 20, 2007

NetBSD 4.0 has been released. It is available for download now. . NetBSD is a free, secure, and highly portable Unix-like Open Source operating system available for many platforms, from 64-bit Opteron machines and desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and it is user-supported with complete source. Many applications are easily available through pkgsrc, the NetBSD Packages Collection.

Major achievements in NetBSD 4.0 include support for version 3 of the Xen virtual machine monitor, Bluetooth, many new device drivers and embedded platforms based on ARM, PowerPC and MIPS CPUs. New network services include iSCSI target (server) code and an implementation of the Common Address Redundancy Protocol. Also, system security was further enhanced with restrictions of mprotect(2) to enforce W^X policies, the Kernel Authorization framework, and improvements of the Veriexec file integrity subsystem, which can be used to harden the system against trojan horses and virus attacks.

Download NetBSD ISO CD

=> Visit official site to grab NetBSD 4 ISO images [i386 – 242M]
=> Announcing NetBSD 4.0

Download of the day: OpenBSD 4.2 CD ISO Image

Posted on in Categories Download of the day, OpenBSD last updated November 1, 2007

OpenBSD 4.2 has been released and available for download. OpenBSD is famous for its focus on security. Today, November 1st, the team is proud to announce Release 4.2.

Even though security is still there, this release comes with some amazing performance improvements: basic benchmarks showed PF being twice as fast, a rewrite of the TLB shootdown code for i386 and amd64 cut the time to do a full package build by 20 percent (mostly because all the forks in configure scripts have become much cheaper), and the improved frequency scaling on MP systems can help save nearly 20 percent of battery power.

And then the new features: FFS2, support for the Advanced Host Controller Interface, IP balancing in CARP, layer 7 manipulation with hoststated, Xenocara, and more!

Download OpenBSD ISO

=> For greater convenience, the new 4.2 release also comes with roughly ~200MB full install ISO images called “install42.iso”. If you download this file, you do not need the other standard install files. Select

Also, Federico Biancuzzi interviewed 23 developers and assembled this huge interview…

Download of the day: Solaris 10 update 8/07 CD / DVD ISO

Posted on in Categories Download of the day, Solaris, UNIX last updated September 12, 2007

Solaris 10 update 8/07 has been released and available for download. From the announcement page:
The latest update of the Solaris OS helps customers alleviate common enterprise problems such as virtualization, resource management, and system performance. Solaris delivers built-in investment protection and new technologies that are even better suited to data intensive environments where price and performance are driving factors:

New updated features

=> Solaris Containers for Linux Applications and integrated support for Logical Domains
=> Update to the performance-optimized and cost-effective PostgreSQL open-source database software.
=> Ability to run multiple independent network stacks on one system
=> Networking and DTrace technology enhancements

Best of all, it’s free to download and use. The only thing customers pay for are the support and services, which range in scope and price to suit the needs of individual developers and companies of all sizes.

Download Sun Solaris 10 UNIX CD / DVD ISO

=> Visit official site to download Solaris ISO images.

Linux increase number of loop filesystems allowed to be mounted simultaneously

Posted on in Categories Linux, Linux distribution last updated August 29, 2007

You can mount DVD / CD iso images using loop module under Linux (Sun Solaris UNIX user can try out lofiadm command) . It would be good idea to increase the number of loop filesystems allowed to be mounted simultaneously by adding the following line to /etc/modprobe.conf file:

Task: Set maximum number of loop devices

Open Linux kernel module configuration file using text editor:
# vi /etc/modprobe.conf

Append loop module configuration parameter:
options loop max_loop=256

Where,
=> loop : module name

=> max_loop=256: Maximum number of loop devices (1-256)

This is useful on dedicated installation server. For example internally we have over 5 Linux distro ISO downloaded with new and old version number. We use iso for HTTP or FTP installation over LAN. By increasing limit to max you can avoid problems.