Linux Training In Nagpur
- psk itservices
- Apr 1, 2020
- 4 min read
Linux System Administrator Tasks
Identify and solve service problems ranging from disaster recovery to login problems.
Maintenance, enhance and create tools for the Linux environment and its users.
Create and update documentation, including maintenance logs and end-user training.
Back up, recovery, maintenance and migrate data and programs.
The top respondents for the job title Linux System Administrator are from the companies IBM India Private Limited, Tata Consultancy Services Limited, and HCL Technologies Ltd. Reported salaries are highest at Oracle where the average pay is ₹950,000. Other companies that offer high salaries for this role include IBM India Private Limited and Tata Consultancy Services Limited, earning around ₹605,000 and ₹480,249, respectively. HCL Technologies Ltd. pays the lowest at around ₹378,000. Wipro Technologies Ltd. and Wipro also pay on the lower end of the scale, paying ₹410,000 and ₹439,000, respectively.
A Linux system administrator is responsible for the standard day-to-day administration of Linux servers. This would include, but not be limited to, deployment of a standard LAMP (Linux, Apache, MySQL, and PHP) web server configuration, including installing all standard plugins, SSL and configuration. A Linux system administrator should also be familiar with at least two different Linux distributions.
Ideally, one of the Linux distributions should be Redhat Enterprise Linux, the most common distribution used in the corporate world. The second distribution should be one of the Debian based distributions (such as Debian and Ubuntu), since most cloud service providers use some form of Debian for their servers. A typical applicant should have at least three years of experience in the day-to-day administration of Linux servers.
In addition to the standard setup of Linux servers, a Linux system administrator should be well versed in the upkeep of the servers after the initial setup. This includes patching (via Yum, Yast, or Apt, as appropriate), security remediation, based on scans and logs, and standard maintenance such as firewall configuration, log rotation, and performance tuning.Ideally, a Linux system administrator candidate also has some knowledge of supporting technologies for their servers. This would include basic networking knowledge (preferably Cisco or Juniper in regards to hardware), VMware or Hyper-V virtualization, and at least one cloud platform (AWS, Openstack or Azure). The Linux system administrator doesn’t need to be an expert in any of these fields, but some basic knowledge of how their Linux server interacts with these supporting technologies helps round out their skillset.
Last, like all IT jobs, a Linux system administrator needs to be very analytical, able to effectively troubleshoot and resolve a variety of problems. They must also be patient and have the ability to work well on a team.
Advantages
FREEDOM!
Most Linux distros are free….. users do not need to pay for a copy, but this is only one aspect of freedom enjoyed by Linux users! In addition, Linux distros can be freely downloaded and legally installed on as many computers as you want and freely (and legally) given to other people. Because most distros are open source, you have access to the source code and can customize Linux to be whatever you want it to be; you can even create your own distro if you like!Linux is easy to install! In many instances, it is actually easier to install Linux to your computer than Windows. Click here to learn more about how to download and install Linux to your computer.
LINUX IS VERY STABLE!
Linux systems rarely crash, and when they do, the whole system normally does not go down. The “blue screen of death” familiar to Windows users is not a worry for Linux users.
LINUX IS LESS VULNERABLE TO COMPUTER MALWARE!
Because most computer malware is designed to attack Windows (often through Active X which is not typically found in Linux) the odds are considerably less for Linux to be infected with a virus than Windows [2]. The same holds true with spyware, trojans, and worms. While Linux malware does exist, they are relatively few in number and none have become widespread so far [3]. While Linux is very secure by its nature, users should still employ good sense while surfing the Internet; click here to learn more [4]. As long as Linux users download and install only from their distro’s official software repository, then security is greatly increased. One nice security feature In Linux is that files must be made to be executable by someone with administrator privileges, which requires a password. So even if a Linux virus is loaded on a Linux computer, it will not be able to run without the user who has administrator privileges intentionally making it executable. Another important aspect of Linux security is the fact that it is open source. Because the programming code is available for anyone to view, there are many eyes constantly examining it, which makes it highly difficult for malware to be hidden within the code [5]. Also, security patches normally come much quicker to Linux than other operating systems because so many people are contributing to it. Here are some resources with more information about Linux security and why Linux computers are much less likely than Windows to ever become infected with a virus:
LINUX TYPICALLY DOES NOT SLOW DOWN OVERTIME!
Unlike Windows, Linux does not easily become bogged down with spyware, viruses, trojans, etc., which can greatly reduce a computer’s performance. Also, because Linux does not have a registry like Windows, it is not plagued with registry errors which can slow down a computer over time. Finally, the hard drives on Windows (especially Windows XP and older) computers need to be defragmented on a regular basis in order to maintain faster performance, due to being formatted in NTFS. On the other hand, because Linux is normally formatted in a different way using ext4 among others, there is no need to defragment a Linux hard drive.
LINUX CAN BREATHE NEW LIFE INTO OLD COMPUTERS!
If you have an older computer (especially Pentium III or later) laying around, you can install Linux and in essence, have a new computer. In many cases, Linux will run faster and you can do all of the basics such as browse the Internet, email, play games, and create and edit documents, spreadsheets, and PowerPoint presentations. It should also be mentioned that Linux runs great on newer computers as well.
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