Linux / FreeBSD: PDFCrack A Command Line Password Recovery Tool For PDF Files

Posted on in Categories FreeBSD, Linux, Linux desktop, Security last updated June 6, 2012

I already written about howto remove a password from all PDF files under Ubuntu or any other Linux distribution in a batch mode. However, many user want a simple command to recover password from pdf files. This is useful if you forgotten your password for pdf file. It is also useful for data-archaeologists, computer forensics professionals, people who want to test their password-strength (pdf files generated by webpass) and many more.

Ubuntu / Debian Linux Find Weak OpenSSL keys

Posted on in Categories Debian Linux, Howto, Linux, Linux desktop, Monitoring, Networking, package management, Security, Security Alert, Windows, windows vista last updated June 16, 2008

Luciano Bello discovered that the random number generator in Debian’s openssl package is predictable. This is caused by an incorrect Debian-specific change to the openssl package (CVE-2008-0166). As a result, cryptographic key material may be guessable.

Configure Static Routes In Debian or Red Hat Enterprise Linux

Posted on in Categories CentOS, Debian Linux, Linux, Networking, RedHat/Fedora Linux, Suse Linux, Ubuntu Linux last updated January 22, 2010

Static routes improves overall performance of your network (especially bandwidth saving). They are also useful in stub networks (i.e. there is only one link to the network). For example, each LAN (located at different offices) is connected to HQ IDC (Internet data center) using single T1/LL/Wan links.

For example under Red Hat/Fedora Linux you can add static router for eth0 network interface by editing /etc/sysconfig/network-scripts/route-eth0 file. Under Debian Linux add static route by editing /etc/network/interface file.