Rsync backups are versatile. You can can create full, differential and incremental backups of a directory. Rsync can backup files locally or remotely. Local Backups If you are backing up to another directory, removable storage, or a locally mounted network file system, then you will be creating local backups. Creating Local Backups To create a… Read More »
Sometimes you may want to find and remove broken symbolic links from your systems. For example, OSSEC will complain if it finds broken symbolic links in directories it monitors. This guide should work on almost any Linux or UNIX like operating system. The following command will list broken symbolic links in the directory you specify.… Read More »
This guide will walk you through installing OpenLDAP from source on CentOS 7. It should work with Red Hat Enterprise Linux (RHEL) 7, Oracle Linux 7, Scientific Linux 7, and any other RHEL clones. I am assuming you are able to use a command line shell and text editor on a UNIX like operating system.… Read More »
I generally prefer free and open source software (FOSS) over commercial software for several reasons. It can save a lot of money, a lot of good software is available, and it has many conveniences commercial software doesn’t. To make sure we are on the same page, I am using free as in speech AND beer.… Read More »
Setting up passwordless SSH is a simple two step process. This guide will walk you through doing it with OpenSSH and PuTTY. Although PuTTY is available for UNIX like operating systems, I am going to assume you are using it on a Windows computer. Here are the two steps: Create a private key on the… Read More »
When you start seeing terms such as octal, binary, sticky bits, set UID, set GID, and ACLs, learning how UNIX file permissions work may sound confusing. Its not so bad after a bit of practice. In my opinion, it is easier than Windows permissions. You don’t need to understand octal and binary. It could possibly… Read More »
This vi tutorial should teach you just enough to do some basic editing and understand the documentation. I have tested it with vim and the version of nvi that ships with FreeBSD. It should work with any version. Vi is a popular text editor for UNIX like operating systems created in 1976. Unlike most word… Read More »