What do you do as a Linux administrator?

A Linux administrator’s main responsibility is to install and set up Linux systems and servers, often for organization-wide deployment. They develop servers and work with individual users to ensure that the system works reliably and quickly and answer questions related to setup and installation.

What should know Linux administrator?

10 skills every Linux system administrator should have

• User account management. Career advice.
• Structured Query Language (SQL)
• Network traffic packet capture.
• The vi editor.
• Backup and restore.
• Hardware setup and troubleshooting.
• Network routers and firewalls.
• Network switches.

How difficult is Linux administration?

Learning the basics isn’t terribly hard. The hardest skill to learn for systems administration (or anything like it) is learning how to learn. But if you have some Linux background, administration is just a natural outgrowth of being a user. Becoming good at it is, in fact, hard.

How do you troubleshoot a process in Linux?

General Troubleshooting in Linux

1. Getting ram information. cat /proc/meminfo.
2. Getting cpu info.
3. Check the temperature of your CPU.
4. List PCI and USB devices.
5. Check out how much hard drive space is left.
6. See what hard drives are currently detected.
7. Packages.
8. Kill a process.

What is question mark in Linux?

This control operator is used to check the status of last executed command. If status shows ‘0’ then command was successfully executed and if shows ‘1’ then command was a failure. The exit code of the previous command is stored in the shell variable $?.

How do I troubleshoot Linux hardware issues?

Troubleshooting hardware problems in Linux

1. Quick-diagnosing devices, modules, and drivers. The first step in troubleshooting usually is to display a list of the hardware installed on your Linux server.
2. Digging into multiple loggings.
3. Analyzing networking functions.
4. In conclusion.

What is the future of Linux administrator?

Short answer: There is no future for a traditional Linux Systems Administrator.

Where should I start troubleshooting in Linux?

Where to start troubleshooting is situation-dependent. For example, if you can SSH to a server, but the server can’t connect to a MySQL database, the problem is unlikely to be the physical or data link layers on the local server. In general, it’s a good idea to work your way down the stack.

How to check Linux host performance issues?

Figuring out Linux host performance issues is time-consuming without the right tools. The top, vmstat, iostat, free and sar commands can help get CPU, device and memory data. Continue Reading When determining the best server OS for a data center, you have Windows Server and multiple Linux options.

How to solve Linux booting issues?

With an NFS server and kdump crash tool, you can easily perform a root cause analysis and figure out how to bring a system back online. Continue Reading GRUB is a handy tool to help admins solve any Linux booting issues. Reinstalling or manually implementing GRUB are two main approaches to getting your system back up and running.

How to solve a Linux server memory shortage?

Adding physical memory may seem like the best way to solve a Linux server’s memory shortage. But that’s not the only way, so troubleshoot first. Continue Reading