Fedora 13- Install WLAN drivers.

Posted on September 2, 2010, 4:41 pm, by Dhaval Thakar and received No Comments ».

After installing Fedora 13, you might find your WLAN is not detected. Even with the latest Kernel you may not be able to use WIFI.
This is where sites like http://wireless.kernel.org/ are most useful.

Even today Laptop manufacturer does not consider providing drivers for Linux OS.
While installing Fedora 13 on following laptops wifi was not working.
Dell 1525
HP 6710b

To install drivers either you find a device using lspci command, and google it for driver download. OR use message logs.
Following error in message logs has complete url for driver download & procedure to install it.

NetworkManager[1281]: (wlan0): supplicant manager state: down -> idle
NetworkManager[1281]: (wlan0): device state change: 2 -> 3 (reason 0)
kernel: b43 ssb0:0: firmware: requesting b43/ucode15.fw
kernel: b43 ssb0:0: firmware: requesting b43-open/ucode15.fw
kernel: b43-phy0 ERROR: Firmware file “b43/ucode15.fw” not found
kernel: b43-phy0 ERROR: Firmware file “b43-open/ucode15.fw” not found
kernel: b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.

If you have broadcom wireless device, you may use following procedure.

yum install b43-fwcutter -y

wget http://downloads.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2
tar xjf broadcom-wl-4.150.10.5.tar.bz2
cd broadcom-wl-4.150.10.5/driver
b43-fwcutter -w /lib/firmware/ wl_apsta_mimo.o

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Nagios 3.2.2 Released.

Posted on September 2, 2010, 3:27 pm, by Dhaval Thakar and received No Comments ».

Latest version of Nagios is released.
Download

Changelog

ENHANCEMENTS

* Patch to new_mini_epn to allow any command line length without breaking on extra trailing or leading whitespace (Ray Bengen)
* Patch to mini_epn to allow any command line length (Thomas Guyot-Sionnest)
* Patch to speed up loading of state retention data (Matthieu Kermagoret)
* Custom notifications are now suppressed during scheduled downtime (Sven Nierlein)
* Added code to warn user about exit code of 126 meaning plugin is not executable (bug #153)
* Scheduled downtime can now start on SOFT error states (bug #47)
* Main window frame URL can now be specify with a “corewindow=” parameter
* Improved config CGI shows commands, command args in an easier to use manner (Jochen Bern)
* Added ability for NEB modules to override execution of event handlers (Sven Nierlein)
* Custom macros are no longer cleaned/stripped as they are user-defined and should be trusted (Peter Morch)

FIXES

* Fix for choosing next valid time on day of DST change when clocks go one hour backwards
* Fix for nagios now erroring when “Error: Could not find any contactgroup matching…” displayed
* Fix tap tests for Solaris 10 and newer versions of Test::Harness
* Fix for notifications not being sent out when scheduled downtime is cancelled (Daniel Pouzzner)
* Fix for first notification delay being calculated incorrectly, and notifications potentially going out early (Pawel Malachowski)
* Fix for text of scheduling downtime of all services on a host (Holger Weiss)
* Fix for services inheriting notification period from hosts if not defined (Gordon Messmer)
* Fix for incorrect service states on host failures (bug #130 Petya Kohts)
* Fix for incorrect service state attributes being set on host failures (bug #128 Petya Kohts)
* Fix for non-scheduled hosts and services not being updated in NDOUtils
* Fix for typos in TAC, CMD CGIs (bugs #150, #144, #148)
* Fix for types in documentation (bugs #145, #105, #106)
* Fix for incorrect host state counts in status CGI when viewing servicegroups (bug #72)
* Fix for new Splunk integration query parameters (bug #136)
* Fix for extra field header in availability CSV export (bug #113)
* Fix for macro processing code modifying input string (Jochen Bern)
* Fix for update check API
* Fix for CGI speedup when persistent=0 for comments
* Fix for event execution loop re-scheduling host checks instead of executing them if service checks are disabled (bug #152)
* Fix for segfaults on Solaris (Torsten Huebler)
* Fix for incorrect comment expiration times being passed to event broker (Mattieu Kermagot)
* Doc updates related to cleaning of custom macros (Peter Valdemar Morch)
* Fix to sample notify-service-by-email command (bug #62)
* Fix for retaining host display name and alias, as well as service display name (Folkert van Heusden)

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Openfire 3.7.0 beta Released

Posted on August 27, 2010, 7:32 pm, by Dhaval Thakar and received No Comments ».

After more than a year, new version of openfire is released, though its beta.

Download
Some important security related notes to this release:
Openfire no longer ignores the system property to disallow password changes via XMPP. With previous releases, it was not possible to prevent users from changing their password via their XMPP connection. (CVE-2009-1596)
Fixed a XSS attack on the admin console login form.

Protocol compliance improvements:
Publish Subscribe (PubSub)
BOSH (http-bind) xml namespace compliance fix.

Some highlights of this beta release:
Improves how Openfire handles “idle” connections. Some of you may have the system property xmpp.client.idle set to -1 to work around previously broken behaviour. You may now let it default to 6 minutes or set it to your preference.
Improved Openfire’s caching to be less prone to memory exhaustion by correctly calculating cache size usage.
Fixed a bug where admin console login into a newly installed Openfire server would fail until restarted.
Fixed a bug with shared rosters within a LDAP environment.
Openfire now ships with the latest JRE (1.6.0u21).
A memory leak with the Personal Eventing Protocol (PEP) was fixed.
Openfire’s custom log interface has been replaced with SLF4J and a Log4J backend.
Fix issues with self signed SSL certificates.
A number of improvements and fixes were made to the Multi-User Chat (MUC) configuration pages on the admin console
There were also some improvements made to the plugins.
There are also French, Russian, and Lithuanian langauge translation fixes for Openfire and some of the plugins.

Source

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Fedora 14 Alpha Released

Posted on August 24, 2010, 10:40 pm, by Dhaval Thakar and received No Comments ».

Today Fedora 14 Alpha is released.

Fedora 14 is named in honor of distinguished physicist Robert B. Laughlin,
whose fields of research have included, among other things, the topic of
emergence. Emergence is the process by which a group of individual components
interact to produce a system that is more complex than the sum of its parts -
a perfect description of an open source community.

Features
Linux Kernel 2.6.35
Desktop Virtualization
Faster JPEG Compression/Decompression
New and Updated Programming Languages
Better Tools For Developers
KDE Plasma Desktop 4.5.0
Fedora on the Cloud
Perl 6 support with Rakudo

Download
Release Notes

Source

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LVM Resize root partition -Centos

Posted on August 18, 2010, 10:25 am, by Dhaval Thakar and received No Comments ».

This is more of Resize LVM
I have tested this on CentOS 5.5. Since this is root partition modification, I’ll recommend to keep config backup before proceeding.

create new partition (partition id should be 8e Linux LVM)
ADD PHYSICAL VOLUME

pvcreate /dev/new_partition

Verify new physical volume

pvdisplay
Or
pvscan

Extend existing VOLUME GROUP

vgextend VolGroup00 /dev/xvda3

make sure vg free size is = new partition size using vgdisplay command
Extend existing LVM by adding new partition

lvextend /dev/VolGroup00/LogVol00 /dev/xvda3

make sure lv size is increased, use lvdisplay

RESIZE FILE SYSTEM
Reboot Linux to init1

umount /dev/VolGroup00/LogVol00
fsck -f /dev/VolGroup00/LogVol00

Mount / partition or reboot to init1 for following command to run.

resize2fs /dev/VolGroup00/LogVol00

Now you may reboot & check / partition size.

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