Linux Commands Every Web Hosting Support Tech Uses

Terminal checks for real hosting support work.

Web hosting support is not just clicking around a control panel. A lot of useful troubleshooting still happens at the command line, especially when you need to check logs, disk usage, services, DNS and HTTP responses quickly.

This guide covers the commands I would expect any hosting support technician to become comfortable with. They are not flashy, but they solve real problems.

Start with the basics

The first checks are usually simple: is the server up, is the service running, and is the disk full?

uptime
df -h
free -m
systemctl status httpd
systemctl status mariadb

These commands give you a fast overview before you start chasing more obscure issues.

Search logs quickly

For web hosting work, grep, tail and awk are your best mates. They help you narrow thousands of lines into something useful.

tail -f /usr/local/apache/logs/error_log
grep "500" /usr/local/apache/domlogs/example.com
awk '{print $1}' access.log | sort | uniq -c | sort -nr | head

For more practice, the Linux troubleshooting and command guides on CommandLineQuiz are a good next step.

DNS and HTTP checks

When a website is down, DNS and HTTP checks are often the difference between guessing and knowing.

dig example.com
dig MX example.com
curl -I https://example.com
curl -L https://example.com

For browser-based DNS checks, DNSNow is a useful companion tool. For command-line practice, try the dig command builder.

Turn repeat checks into scripts

Once you repeat the same checks often enough, turn them into a small Bash script. That is usually where simple troubleshooting becomes proper automation.

The Bash scripting hub is ideal if you want to build that skill properly.