January 1, 2010

Linux Package Management Tips

Linux General,Linux/Windows Support,

Try these Linux package management tips. Linux Package Management Tips 1) To check if a package is available in repositories and if so available, to check the version and size of the package, as superuser run the following commands in respective distro: Fedora, CentOS: yum list <package_name> Ubuntu/Debian: aptitude search <package_name> OpenSuse: zypper search <package_name>…

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January 1, 2010

Find programs hogging bandwidth using iftop command in Linux

Linux General,Linux/Windows Support,

Find programs hogging bandwidth using iftop command in Linux Using iftop command we shall be able to determine what program is hogging bandwidth. iftop -bNBP is the commonly used option where -n don’t do hostname lookups -N don’t convert port numbers to services -B Display bandwidth in bytes -P show ports as well as hosts…

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December 26, 2009

Linux modules and libraries

Linux General,

Dynamically linked libraries are linked and loaded at run time, either by “ld.so” or “ld-linux.so”, depending on how it was compiled: in a.out or ELF format. Every program whenever they need a library, look through a known list of places to find the needed library. One place they look is “/etc/ld.so.cache”, which contains an ordered…

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December 26, 2009

RPM – RedHat Package Manager

Linux General,

What does a RPM Package contain? RPMs (*.rpm) typically include 1) the compiled programs and/or libraries needed for the package, 2) documentation 3) install, verify, and uninstall scripts 4) cryptographic signatures for each file in the package. This makes it easy to verify the integrity of the package. 5) It also includes a list of…

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September 16, 2009

Linux Security Tools

Linux General,

In this page i will try to provide some of the must have tools for linux OS. Some of these tools can also be used for FreeBsd: ROOT KIT HUNTERS: Installation how to *  CHKROOTKIT * RKHUNTER * ROOTCHECK @RootCheck: You can download the rootcheck latest version from the following URL: http://www.ossec.net/rootcheck/files/ Installation how to:…

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September 16, 2009

Exim Command line arguments

Linux General,

Exim Command line arguments The command options are described in alphabetical order below. — This is a pseudo-option whose only purpose is to terminate the options and therefore to cause subsequent command line items to be treated as arguments rather than options, even if they begin with hyphens. -B This is a Sendmail option for…

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