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Servers & Storage Feed

Sun Servers and Storage, Solaris, Oracle Linux, Red Hat Linux, Oracle VM for x86, Oracle VDI and Virtualization resources, news, and support articles.

Linux view all users crontab

 
In general we will use crontab – e or crontab -l to view crontab.
Both commands crontab -e and crontab -l will show only current users(where we logged in) crontab.
To view other user crontabs use following command:
$ crontab -u -l
To list guest user crontab use following command:
$ crontab -u guest -l
Before running above command you need to login into root.
In Ubuntu based operating systems we need to use sudo with above command.

Linux view all users crontab

 
In general we will use crontab – e or crontab -l to view crontab.
Both commands crontab -e and crontab -l will show only current users(where we logged in) crontab.
To view other user crontabs use following command:
$ crontab -u -l
To list guest user crontab use following command:
$ crontab -u guest -l
Before running above command you need to login into root.
In Ubuntu based operating systems we need to use sudo with above command.

Xen 4.4 Released

Xenproject.org is pleased to announce the release of Xen 4.4.0. The release is available from the download page:

Setup Gluster 3.4.2 on Two Node Controller&Compute Neutron GRE+OVS Fedora 20 Cluster

This post is an update for http://bderzhavets.blogspot.com/2014/01/setting-up-two-physical-node-openstack.html  . It’s focused on Gluster 3.4.2  implementation including tuning /etc/sysconfig/iptables files on Controller and Compute Nodes.

Xen Project Developer Summit Call for Participation is Open

Join us in Chicago August 18-19

The Xen Project Developer Summit will feature content for developers, integrators and power users of the Xen Project. We are looking for presentations related to development, such as development proposals, updates on feature development, project updates, etc. We are also looking for insight into best practices in deploying Xen Project at scale, case studies by Xen users and other topics that large scale users of the Xen Project hypervisor care about.

Ubuntu: How to delete all of your old kernels

In Ubuntu 11.10 and newer versions, GRUB2 will display all kernels installed on your system at boot time. If you're like me, you probably get annoyed with a lengthy list of out of date kernels to scroll through in your GRUB boot menu.
Let's be real, no one really wants to boot a kernel from last year with bugs and vulnerabilities when you have nice new shiny kernels to choose from. Thankfully, the latest versions of GRUB2 installed in Ubuntu automatically display the latest kernel and hides the older kernels that you may have installed.

How to specify default applications for file types: Part 1 - Command line

Numerous apps vie to open your PDF files by default - evince, xpdf, Adobe Reader, Okular, etc. If you don't like the default as dictated by your desktop environment, you can change it. The general idea is that default applications for file types, or 'file association', is governed by a set of configuration files.

Vim case insensitive search

 
By default vim editor is enabled to search case sensitive search.
Example:
/linux
Above example will looks for linux only not Linux or LINUX.
To enable case insensitive search use \c at start/end of your search key word.
Example:
/\clinux
or
/linux\c
Any of above example will ignore case and will search for linux.

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