ClearOS 6.4.0 Beta 2 "Community"

Peter Baldwin has announced the release of the second beta of ClearOS 6.4 "Community" edition, a CentOS-based server, network and gateway operating system designed for homes, hobbyists and small organisations: "ClearOS Community 6.4.0 Beta 2 has arrived. Along with the usual round of bug fixes and enhancements, this release introduces a new reports engine, a storage manager, an anti-malware file scanner, RADIUS, a basic POP/IMAP server, mail retrieval (Fetchmail) as well as upstream proxy support. Over the last few weeks, there was a lot of focus on squashing bugs and improving little usability issues. From the modernized installer to the easy to use Marketplace, ClearOS 6 has matured to be our best offering. It's not only the core platform that has had a facelift, but also the individual apps and solutions. For example, Zarafa's solution with two great webmail interfaces, Outlook support, and out-of-the-box mobile synchronization." See the release announcement and release notes for further details. Download (MD5): clearos-community-6.4beta2-x86_64.iso (666MB).

Rocks Cluster Distribution 6.1

Philip Papadopoulos has announced the release of Rocks Cluster Distribution 6.1, a CentOS-based open-source toolkit for real and virtual clusters: "The latest update of Rocks, code name 'Emerald Boa', is now released. Emerald Boa is available for CentOS 6.3 (Rocks 6.1). The Rocks-supplied OS rolls have all updates applied as of November 27, 2012. New features: host-based SSH authentication is now the default, this eliminates the requirement the users have password-less SSH keys and/or mounted home area on remote nodes; two-factor SSH authentication using Google Authenticator Apps for Android and iPhone is supported for all users; New ZFS Linux roll to support the ZFS file system via the ZFS on Linux; new kernel roll to more easily support vanilla Linux kernels." See the release announcement and release notes for further details. Download (MD5) the "jumbo" DVDs containing the OS and all available "rolls": area51...6.1.i386.disk1.iso (2,516MB), area51...6.1.x86_64.disk1.iso (2,580MB).

How to Reset Forgotten Root Password in RHEL/CentOS and Fedora

 

 

Suppose you want to get into a Linux system. You know nothing about the existing user’s or their passwords. You have no idea about these things. Then what will you do??
The only thing you know that the user root exists. So we must find a way to get the root’s password.

I think you know about the different run-levels on a UNIX machine. The single user mode or the run-level 1 is used for these kind of rescue purposes. So what you should do is to enter the rescue mode. Click here to learn How to enter Rescue mode in Linux / UNIX.
Once the Rescue environment is loaded, you will get a shell which is your default bash shell.
Now use the passwd command to set / change the root’s password.

[root@server ~]# passwd

Changing password for user root.

New password:

BAD PASSWORD: it is too simplistic/systematic

Retype new password:

passwd: all authentication tokens updated successfully.

Now the password has been changed the newly set one.
Note:
If you are using Red Hat Enterprise Linux 6, a security bug was there which blocked the passwd command from working in single user mode. Later this was fixed by a bug fix update (http://rhn.redhat.com/errata/RHBA-2010-0845.html).
If you have installed the original selinux-policy package, the passwd command might not run. So make the SELinux policy to permissive for the passwd command to run.
Get the SELinux status by,

# getenforce Enforcing

Now change to permissive by,

# setenforce 0

Again check the status and see the change

# getenforce Permissive

Now run the passwd command and after that change the SELinux back to the Enforcing state by the

# setenforce 1

# getenforce Enforcing

Now reboot the machine and boot normally.
Thats all you are done.

ClearOS 6.3.0 "Community"

Peter Baldwin has announced the release of ClearOS 6.3.0, a CentOS-based distribution for servers: "ClearOS Community 6.3.0 has arrived! Along with the usual round of enhancements, this release introduces new applications focused on the mail server stack. Anchored on the Zarafa for ClearOS solution, you can now implement an on-premise or private cloud mail server using ClearOS. This release includes the following new applications: Zarafa Community for ClearOS, Mail Antivirus, Mail Antispam, Antispam Updates, Greylisting, and more. For businesses and organizations, ClearOS Professional 6.3.0 also includes Zarafa Professional for ClearOS, Mail Antimalware Premium powered by Kaspersky and Gateway Antimalware Premium powered by Kaspersky." See the release announcement and release notes for further information. Download: clearos-community-6.3.0-i386.iso (596MB, MD5), clearos-community-6.3.0-x86_64.iso (633MB, MD5).

CentOS 6.3

Karanbir Singh has announced the release of CentOS 6.3, the latest version of the enterprise-class Linux distribution derived from the source code of Red Hat Enterprise Linux 6.3: "The CentOS team is pleased to announce the immediate availability of CentOS-6.3 for i386 and x86_64 Architectures. CentOS-6.3 is based on the upstream release EL 6.3 and includes packages from all variants. All upstream repositories have been combined into one, to make it easier for end users to work with. There are some important changes to this release compared with the previous versions of CentOS and we highly recommend reading this announcement along with the Release Notes. There is also a minimal install CD that will get you a very small base install that you can add to." Read the release announcement and release notes for further information. Download the installation DVD images from mirrors: CentOS-6.3-i386-bin-DVD1.iso (3,541MB, SHA256, torrent), CentOS-6.3-x86_64-bin-DVD1.iso (4,091MB, SHA256, torrent).