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Showing posts with label operating system. Show all posts
Showing posts with label operating system. Show all posts
Saturday, January 31, 2015

How to setup software raid mirroring for disks on xubuntu

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Over a course period of time, disk stop working in a computer is to be expected and if it does, then all the data is lost. Oh no, that's...
1 comment:
Friday, January 16, 2015

operate casandra using jmx in terminal including changing pool size, compacting sstables and key cache

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If you operate apache cassandra cluster and if load per node goes huge (like nodetool info show 800GB) , compactions become a problem. It...
Sunday, January 4, 2015

Embed video into debian mediawiki

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Today, this article is a bit special and a short one, we will configured something interesting. We will embed video into mediawiki in debia...
Sunday, December 21, 2014

apache cassandra 1.0.8 out of memory error unable to create new native thread

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If you are using apache cassandra 1.0.8 and having the exception such as below, you may want to further read. Today, we will investigate on...
Sunday, December 7, 2014

Gnome goodies: add hardware sensor in panel. add stock indicator in the panel.

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Today we will add two more applets to the gnome panel. You might want to look into the past article about gnome applets that were configured...
Friday, November 21, 2014

Gnome goodies: How to sort directory and then file. How to enable weather in the gnome panel

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Today we will take a look at two gnome3 applets . I used to have these settings back in gnome and gnome2 and I think this is a very nice goo...
1 comment:
Sunday, November 9, 2014

gnome-clocks alternative to gnome2 world timezone map

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During gnome2 time, I like the world map where it show the earth timezone information . Take a look at the below screenshot. It shown the p...
Saturday, November 8, 2014

Set date in gnome3 gnome-shell panel

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If you came from gnome2 or before, you can easily alter configuration date and time in the panel. I don't know why the changes in gnom...
Saturday, October 25, 2014

Why is CVE-2014-7169 is important and you should patch your system

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Recently I have come across this link  and read about it. Before we go into the details. Let's understand what is it. From Red Hat errat...
Sunday, October 12, 2014

Enable FSS in journald and verify using journalctl

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Last we learned the basic of journalctl , today we will enable FSS in journald. Forward Secure Sealing or FSS allows application to cryptog...
Friday, October 10, 2014

Derive IPv6 link-local address for network interface

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When you show the interface configuration using command ip, you will noticed there is a inet6 address start with fe80 . Today, we will learn...
1 comment:
Saturday, September 27, 2014

Study journalctl in CentOS 7

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In CentOS 7, the new systemd has a new journaling app, known as journalctl . Today, we will study journalctl. First, what is journalctl? jou...
Friday, September 26, 2014

transition from sysV to systemd, from chkconfig to systemctl

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If you have just been installed CentOS 7.0 and as usual, command chkconfig is executed to list what processes will be start on boot. As seen...
Saturday, September 13, 2014

How to check if Debian Jessie, Ubuntu Trusty, Nokia N900 if it IPv6 ready?

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With recent rise of IPv6 usage , it is imperative that we understand if our devices are ready for IPv6. Linux kernel supported IPv6 as early...
Friday, September 12, 2014

Understand basic network configuration in CentOS 7

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With the recent release of CentOS7, today we are going to check out the basic network configuration. My usual quick command, ifconfig . [roo...
Saturday, August 30, 2014

What should you do if the server you administered got hacked.

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If you realized that your server has been compromised, this discovery will create confusion, reduce confidence and if the server is serving ...
Sunday, August 17, 2014

CVE-2009-2692 Linux NULL pointer dereference due to incorrect proto_ops initializations

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Again as same with previous cve posts, I would like to express the intention of this article is to protect and safeguard of administrators /...
Friday, August 15, 2014

information for malware Linux_time_y_2014 and Linux_time_y_2015 are needed

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This article is a bit special. It is more like seeking information and documentating it. If you have this type of information, please leave ...
Sunday, August 3, 2014

CVE-2014-0196 kernel: pty layer race condition leading to memory corruption

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First off, I would like to express the intention of this article is to protect and safeguard of administrators / developers who make a livin...
Friday, July 25, 2014

CVE-2010-3081 Ac1dB1tch3z

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First off, I would like to express the intention of this article is to protect and safeguard of administrators / developers who make a livin...