The rar and unrar packages are not available from the default yum repositories on CentOS Linux so you will need to install the rpmforge repo to install these packages via yum. Read this article for steps on how to install the rpmforge repository on CentOS Linux. Once installed you can install rar and unrar using…
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I have a client with a Cisco 2811 with primarily Cisco 7960 phones configured off of it. Recently hey switched their telecommunications provider but didn’t get a POTS line for the fax machine. I am going to try to configure a PAP2T-NA to convert from SIP to POTS for the fax machine to see if it…
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I have been on vacation for the past few weeks and every country I go to, when I open my home page which is Google, it goes to the Google page of that particular country. I have found this to be really annoying. The browser I am using is Google Chrome however I experienced the…
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Recently I have started using Hashcat-gui a lot more to test the strength of various passwords for certain clients. One of the things I wasn’t sure of at first was how to save charsets in the Bruteforce Settings window and while it would be nice if you could have a text file that included various…
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Hashcat is an excellent tool to use or security audits of passwords. I will be doing a series of articles relating to anything from simple brute forcing such as the article to more complex techniques using Hashcat, oclHashcat, and the Hashcat-gui on both Windows and Linux operating systems. The goal is to make people more…
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I was working on an article a couple days ago with a friend and he had sent over some commands for me to reference in the article which included the “sort -R” command. The sort -R switch will randomly sort the contents of a file which is very useful in certain situations. The problem is…
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Yesterday I needed to upgrade a single application on CentOS Linux. First I figured out that the application was part of the coreutils RPM package which is currently only available up to version coreutils 5.97-23 on CentOS. The current coreutils package is already up to coreutils 8.5 and upgrading coreutils is near impossible on CentOS…
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Earlier I was compiling the coreutils application on CentOS Linux and ran into an issue after using the “make” command. At first I was confused because I wasn’t doing anything complex but then I realized that I had simply mistyped an environment variable I had previously set. Below I describe the actual error, what was…
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Earlier today I was upgrading some packages on a CentOS Linux server and was curious what applications were actually installed with the coreutils RPM package. I knew that this was one of the main RPM packages that had a ton of various applications installed with it however I was not sure specifically which ones. Below…
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