If you take care of a network, you know that when it comes to energy, steadiness and server availability, almost nothing matches a Linux network. Once you're Linux network is up and operating smoothly daily life is very easy. You've ample time for development and new responsibilities & don't have to concern your self with a lot of little network troubles. As excellent as Linux networks are, though, they do run into problems and have instances in which the network is just not working like expected. Should these times arrive, it is advantageous for Linux admins to possess the proper network monitoring instruments. You would like to reach the root of the issue swiftly and stop little network glitches from turning into major resource drainers. Sound knowledge about Linux network monitoring empowers you to keep the networking thriving.
Linux is well-known as one of the most stable operating systems. When you have a network built on Linux boxes, you know that you have a robust network that usually exceeds expectations. Even though you count on a stable network, you still need to keep things monitored. Don't wait until problems escalate to start regular monitoring. Develop the habit of running regular monitoring to keep your network running like a well-oiled machine.
Other operating systems get a bad rap for security vulnerabilities and networking issues more often than Linux and Unix-based networks do. A good Linux admin should be prepared to run the built in monitoring commands to keep their network trouble-free. There are quite a few built in tools that can help you to keep tabs on all the comings and goings on your company's network. It is always helpful to be able to spot and fix bottlenecks on the fly. To do this, you need a thorough knowledge of the everyday utilities that are there to help you out. Here are some of the typical utilities that you should be well-versed with:
·The vmstat command – you can use this utility to get most of the basic network and machine-specific information that you need.
·The ps command – to keep an eye on network processes, you need to use this command frequently.
·The iostat command – if you want to keep an eye on CPU and NFS issues, you will want to keep this command fresh in your memory.
If you maintain a good working knowledge of the basic network monitoring commands you will be ready to handle any problem that comes your way. There are some problems that will surface more frequently than others. Here are a few of the common networking problems that Linux administrators typically deal with:
·Networking and Traffic Bottlenecks
·Storage and Disk Space Bottlenecks
·CPU and Memory Bottlenecks
If you are familiar with these types of issues and can use the right command utilities in conjunction with software dedicated to network monitoring, your Linux network monitoring will be less of a chore. Any network can run into big trouble. It helps to be prepared with the tools you need to spot problems and implement fixes. You may get so good at this skill that you will be fixing problems before users even notice that they happened.
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