Scenario / Question: I am getting an Internal Server Error and 404 page error in Wordpress when trying to leave a reply or comment. Solution / Answer: The problem could be file permissions Check the Logs for error: file is writable by others Look through your logs for a line with the error [continue...]

Scenario / Question: Downloading Bittorrent or torrent files is slow and my ISP is throttling Solution / Answer: Encrypting your bittorrent / torrent connection will stop ISP’s ability to throttle or shape your traffic. Azureus or Vuze has the ability to use RC4 encryption. RC4 does a [continue...]

Scenario / Question: How do I force a fsck on the file system Solution / Answer: To force fsck that is used to check and repair Linux file systems. Fsck should always be run on unmounted file system. By invoking fsck while the system is starting or booting like on a reboot, you can ensure that [continue...]

Now that we know how to create directories and files we need to be able to rename them and move them. In Linux the command to move and rename is the same ! command to rename and move directories and files NAME mv – move (rename) files SYNOPSIS mv [OPTION]… [-T] SOURCE DEST mv [continue...]

Today we begin learning how to work with the file system. We will cover how to create directories and files. The command to create directories NAME mkdir – make directories SYNOPSIS mkdir [OPTION] DIRECTORY… Lets first change our working directory to the temporary directory /tmp: $ [continue...]

Now that we know how to create directories and files, we need to learn how to delete them. There are two commands for deleting or removing directories in linux. The command “rmdir” and “rm”. The “rmdir” and “rm” commands are unforgiving and there [continue...]

Now that we know how the Linux File system is structured, we need to be able to move around or navigate. Before we can begin navigating we need to be able to list the contents of directories so that we can see where we can go. The command to list a directories contents. NAME ls – list [continue...]

While initially discussion on the file system structure isn’t the most exciting part of Linux. Knowing how the Linux file system is structured will help you understand Linux and be a better Linux user and administrator. The Linux File system is different in that it has One Tree and One [continue...]

Scenario / Question: I can not use yum and appears that iptables is blocking yum from establishing a connection with the internet. Solution / Answer: IPTables needs to be configured to allow incoming ESTABLISHED,RELATED connections and establish connection with yum servers by allowing outgoing [continue...]

Scenario / Question: IPTables is blocking DNS and I can not get DNS from Internet. Solution / Answer: IPTables needs to be configured to allow INPUT of port 53 and the OUTPUT of port 53. DNS uses both tcp and udp protocols on port 53 for communicating. UDP is used for queries transferring less [continue...]