by Ramesh Natarajan on April 30, 2009
A while back we discussed about 12 powerful PuTTY add-ons. When you are working on production support or on a critical project that require 24×7 support, it is essential that you connect to the remote Linux server from anywhere. I found having a SSH client on my phone is very convenient for a quick status check and troubleshooting.
MidpSSH is a SSH and Telnet client for mobile device.
This is a step-by-step guide on how to connect to a Linux server from blackberry phone using MidpSSH software.
(more…)
by SathiyaMoorthy on April 27, 2009
This article is part of the on-going Vi / Vim Tips and Tricks series. Vim is commonly mentioned as text editor, not text creator. Why ? Because we spend lot of time editing an existing text than creating new text. In the text editing, text/pattern substitutions becomes a vital part.
In this article, let us review how to perform both basic and advanced text and pattern substitution features in Vi and Vim Editor. These features are explained using 12 very practical and powerful text substitution examples.
(more…)
by Dhineshkumar Manikannan on April 23, 2009
Best practice recommends that users keep changing the passwords at a regular interval. But typically developers and other users of Linux system won’t change the password unless they are forced to change their password.
It’s the system administrators responsibility to find a way to force developers to change their password. Forcing users to change their password with a gun on their head is not an option!. While most security conscious sysadmins may be even tempted to do that.
In this article let us review how you can use Linux chage command to perform several practical password aging activities including how-to force users to change their password.
(more…)
by SathiyaMoorthy on April 20, 2009
This article is part of the on-going Vi / Vim Tips and Tricks series. As a programmer or system administrator, you will be constantly browsing source codes and shell scripts.
Following are some typical activities that you may perform while browsing a source code file:
- Navigating to the function definition by specifying the function name.
- Navigating to the function definition from ‘function call’.
- Returning back again to function call from the definition.
- Viewing the prototype/signature of functions or variables.
- Viewing the number of functions in a file, etc.,
(more…)
by Ramesh Natarajan on April 16, 2009
by SathiyaMoorthy on April 13, 2009
Earlier we discussed 15 practical examples of find command and grep command. Now, it is time to turn our attention to something less.
In this article, let us review how Linux less command can be used to open and view the following 10 different file types:
- PDF File – *.pdf
- Word Document- *.doc
- Image Files – *.gif, *.jpg, *.jpeg, *.png
- TAR Files – *.tar
- TAR Files with gzip – *.tar.gz
- Zip Files – *.zip
- Gzip and Gzip2 Files – *.gz and *.bz2
- ISO Files
- Debian Files – *.deb
- RPM Files – *.rpm
(more…)
by Ramesh Natarajan on April 9, 2009
by Ramesh Natarajan on April 6, 2009
Email administrators may set a limit on the maximum attachment size that can be attached to an email. You can follow the steps mentioned below to transfer big files that cannot be attached to the email because of the attachment size restriction.
This technique can be used in general whenever you need to split huge files, encrypt and transfer it.
(more…)
My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about