Using systemd Path Units to Monitor Files and Directories
Use systemd path units to monitor files and directories and set service units to execute custom scripts when changes are observed.
Ping - Basic Network Troubleshooting in Linux
Ping is the most common network troubleshooting command. Learn what ping is, how it works and how to use some of it's option to troubleshoot network issues.
Traceroute - Troubleshoot Network Connections in Linux
Using the traceroute command to troubleshoot network issues on a Linux system. Learn the basics of traceroute and how to use it's options.
4 Ways to Discover Your IP Address from the Linux Command Line
Learn how to get your ip address information from the Linux command line using various commands like ip, hostname and nmcli.
Configure Host Specific SSH Settings
How to create a per host ssh configurations to connect to remote machines with different settings.
Update Search Domains on Red Hat 7, CentOS 7 and Fedora using nmcli
Question sent in from Julio from New York. Q: I am running Red Hat Enterprise Linux 7 Workstation and having a hard time adding search domains. My work has several domains and I want to be able to use the short names. I have tried...
Why Does Ping and DNS Resolve Names Differently
Q: I recently setup a DNS server on my Linux system. Now if I ping my IP is resolves to a hostname different from the one I put in DNS. If I use dig it resolves to the correct IP address in DNS. How is this...
How to Configure a Static IP Address in Red Hat, CentOS and Fedora
Q: I have come across a few how-to article on setting a static IP address but I always seem to get stuck. Can you tell me simply how to configure CentOS or Red Hat for a static IP address. I am currently using CentOS 5. ...
How to configure system proxy settings in Red Hat Enterprise Linux
Here we will examine how to set proxy settings in RHEL 5 or 6. This will also work for centOS 5 and 6 as well as most versions of Fedora. We will cover the following three topics: Setting the proxy via Gnome GUI Setting the...