GitHub/school-of-sre
1
0
Fork 0
mirror of https://github.com/linkedin/school-of-sre synced 2026-01-09 01:58:03 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
e20d24fb7fe05a4a59ff44ada56969e03c1458bc
school-of-sre/linux_basics/conclusion/index.html
Kalyanasundaram Somasundaram e20d24fb7f Deployed a5fc21a with MkDocs version: 1.1.2
2020-11-23 20:43:06 +05:50

1068 lines
26 KiB
HTML
Raw Blame History

<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="shortcut icon" href="../../img/favicon.ico">
<meta name="generator" content="mkdocs-1.1.2, mkdocs-material-6.1.5">
<title>Conclusion - SchoolOfSRE</title>
<link rel="stylesheet" href="../../assets/stylesheets/main.21aed14c.min.css">
<link rel="stylesheet" href="../../assets/stylesheets/palette.196e0c26.min.css">
<link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700%7CRoboto+Mono&display=fallback">
<style>body,input{font-family:"Roboto",-apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono",SFMono-Regular,Consolas,Menlo,monospace}</style>
</head>
<body dir="ltr" data-md-color-scheme="" data-md-color-primary="none" data-md-color-accent="none">
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
<label class="md-overlay" for="__drawer"></label>
<div data-md-component="skip">
<a href="#conclusion" class="md-skip">
Skip to content
</a>
</div>
<div data-md-component="announce">
</div>
<header class="md-header" data-md-component="header">
<nav class="md-header-nav md-grid" aria-label="Header">
<a href="../.." title="SchoolOfSRE" class="md-header-nav__button md-logo" aria-label="SchoolOfSRE">
<img src="../../img/sos.png" alt="logo">
</a>
<div class="md-header-nav__title" data-md-component="header-title">
<div class="md-header-nav__ellipsis">
<span class="md-header-nav__topic md-ellipsis">
<a href="../.." title="SchoolOfSRE" >
SchoolOfSRE
</a>
</span>
<span class="md-header-nav__topic md-ellipsis">
Conclusion
</span>
</div>
</div>
<label class="md-header-nav__button md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0116 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 019.5 16 6.5 6.5 0 013 9.5 6.5 6.5 0 019.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5z"/></svg>
</label>
<div class="md-search" data-md-component="search" role="dialog">
<label class="md-search__overlay" for="__search"></label>
<div class="md-search__inner" role="search">
<form class="md-search__form" name="search">
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" data-md-state="active" required>
<label class="md-search__icon md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0116 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 019.5 16 6.5 6.5 0 013 9.5 6.5 6.5 0 019.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
</label>
<button type="reset" class="md-search__icon md-icon" aria-label="Clear" data-md-component="search-reset" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z"/></svg>
</button>
</form>
<div class="md-search__output">
<div class="md-search__scrollwrap" data-md-scrollfix>
<div class="md-search-result" data-md-component="search-result">
<div class="md-search-result__meta">
Initializing search
</div>
<ol class="md-search-result__list"></ol>
</div>
</div>
</div>
</div>
</div>
</nav>
</header>
<div class="md-container" data-md-component="container">
<main class="md-main" data-md-component="main">
<div class="md-main__inner md-grid">
<div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../.." class="md-nav__link">
Home
</a>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-2" type="checkbox" id="nav-2" checked>
<label class="md-nav__link" for="nav-2">
Fundamentals Series
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Fundamentals Series" data-md-level="1">
<label class="md-nav__title" for="nav-2">
<span class="md-nav__icon md-icon"></span>
Fundamentals Series
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-2-1" type="checkbox" id="nav-2-1" checked>
<label class="md-nav__link" for="nav-2-1">
Linux Basics
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Linux Basics" data-md-level="2">
<label class="md-nav__title" for="nav-2-1">
<span class="md-nav__icon md-icon"></span>
Linux Basics
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../command_line_basics/" class="md-nav__link">
Command Line Basics
</a>
</li>
<li class="md-nav__item">
<a href="../linux_server_administration/" class="md-nav__link">
Server Administration
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
Conclusion
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
Conclusion
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="#applications-in-sre-role" class="md-nav__link">
Applications in SRE Role
</a>
</li>
<li class="md-nav__item">
<a href="#useful-courses-and-tutorials" class="md-nav__link">
Useful Courses and tutorials
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-2-2" type="checkbox" id="nav-2-2" >
<label class="md-nav__link" for="nav-2-2">
Git
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Git" data-md-level="2">
<label class="md-nav__title" for="nav-2-2">
<span class="md-nav__icon md-icon"></span>
Git
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../git/git-basics/" class="md-nav__link">
Git Basics
</a>
</li>
<li class="md-nav__item">
<a href="../../git/branches/" class="md-nav__link">
Working With Branches
</a>
</li>
<li class="md-nav__item">
<a href="../../git/github-hooks/" class="md-nav__link">
Github and Hooks
</a>
</li>
<li class="md-nav__item">
<a href="../../git/conclusion/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-2-3" type="checkbox" id="nav-2-3" >
<label class="md-nav__link" for="nav-2-3">
Linux Networking
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Linux Networking" data-md-level="2">
<label class="md-nav__title" for="nav-2-3">
<span class="md-nav__icon md-icon"></span>
Linux Networking
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../linux_networking/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/dns/" class="md-nav__link">
DNS
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/udp/" class="md-nav__link">
UDP
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/http/" class="md-nav__link">
HTTP
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/tcp/" class="md-nav__link">
TCP
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/ipr/" class="md-nav__link">
Routing
</a>
</li>
<li class="md-nav__item">
<a href="../../linux_networking/conclusion/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3" >
<label class="md-nav__link" for="nav-3">
Python and Web
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Python and Web" data-md-level="1">
<label class="md-nav__title" for="nav-3">
<span class="md-nav__icon md-icon"></span>
Python and Web
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../python_web/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../python_web/python-concepts/" class="md-nav__link">
Some Python Concepts
</a>
</li>
<li class="md-nav__item">
<a href="../../python_web/python-web-flask/" class="md-nav__link">
Python, Web and Flask
</a>
</li>
<li class="md-nav__item">
<a href="../../python_web/url-shorten-app/" class="md-nav__link">
The URL Shortening App
</a>
</li>
<li class="md-nav__item">
<a href="../../python_web/sre-conclusion/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4" >
<label class="md-nav__link" for="nav-4">
Data
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Data" data-md-level="1">
<label class="md-nav__title" for="nav-4">
<span class="md-nav__icon md-icon"></span>
Data
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-1" type="checkbox" id="nav-4-1" >
<label class="md-nav__link" for="nav-4-1">
NoSQL Concepts
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="NoSQL Concepts" data-md-level="2">
<label class="md-nav__title" for="nav-4-1">
<span class="md-nav__icon md-icon"></span>
NoSQL Concepts
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../databases_nosql/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../databases_nosql/key_concepts/" class="md-nav__link">
Key Concepts
</a>
</li>
<li class="md-nav__item">
<a href="../../databases_nosql/further_reading/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-4-2" type="checkbox" id="nav-4-2" >
<label class="md-nav__link" for="nav-4-2">
Big Data
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Big Data" data-md-level="2">
<label class="md-nav__title" for="nav-4-2">
<span class="md-nav__icon md-icon"></span>
Big Data
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../big_data/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../big_data/evolution/" class="md-nav__link">
Evolution and Architecure of Hadoop
</a>
</li>
<li class="md-nav__item">
<a href="../../big_data/tasks/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-5" type="checkbox" id="nav-5" >
<label class="md-nav__link" for="nav-5">
Systems Design
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Systems Design" data-md-level="1">
<label class="md-nav__title" for="nav-5">
<span class="md-nav__icon md-icon"></span>
Systems Design
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../systems_design/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../systems_design/scalability/" class="md-nav__link">
Scalability
</a>
</li>
<li class="md-nav__item">
<a href="../../systems_design/availability/" class="md-nav__link">
Availability
</a>
</li>
<li class="md-nav__item">
<a href="../../systems_design/fault-tolerance/" class="md-nav__link">
Fault Tolerance
</a>
</li>
<li class="md-nav__item">
<a href="../../systems_design/conclusion/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle" data-md-toggle="nav-6" type="checkbox" id="nav-6" >
<label class="md-nav__link" for="nav-6">
Security
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" aria-label="Security" data-md-level="1">
<label class="md-nav__title" for="nav-6">
<span class="md-nav__icon md-icon"></span>
Security
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../security/intro/" class="md-nav__link">
Introduction
</a>
</li>
<li class="md-nav__item">
<a href="../../security/fundamentals/" class="md-nav__link">
Fundamentals of Security
</a>
</li>
<li class="md-nav__item">
<a href="../../security/network_security/" class="md-nav__link">
Network Security
</a>
</li>
<li class="md-nav__item">
<a href="../../security/threats_attacks_defences/" class="md-nav__link">
Threat, Attacks & Defences
</a>
</li>
<li class="md-nav__item">
<a href="../../security/writing_secure_code/" class="md-nav__link">
Writing Secure code
</a>
</li>
<li class="md-nav__item">
<a href="../../security/conclusion/" class="md-nav__link">
Conclusion
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../../CONTRIBUTING/" class="md-nav__link">
Contribute
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="toc">
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="#applications-in-sre-role" class="md-nav__link">
Applications in SRE Role
</a>
</li>
<li class="md-nav__item">
<a href="#useful-courses-and-tutorials" class="md-nav__link">
Useful Courses and tutorials
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content">
<article class="md-content__inner md-typeset">
<h1 id="conclusion">Conclusion</h1>
<p>With this we have covered the basics of linux operating systems along with basic commands
which are used in linux. We have also covered the linux server administration commands.</p>
<p>We hope that this course will make it easier for you to operate on the command line.</p>
<h2 id="applications-in-sre-role">Applications in SRE Role</h2>
<ol>
<li>As a SRE, you will be required to perform some general tasks on these linux servers. You will also be using the command line when you are troubleshooting issues.</li>
<li>Moving from one location to another in the filesystem will require the help of ls, pwd and cd commands</li>
<li>You may need to search some specific information in the log files. Grep command would be very useful here. I/O redirection will become handy if you want to store the output in a file or pass it as an input to another command.</li>
<li>Tail command is very useful to view the latest data in the log file.</li>
<li>Different users will have different permissions depending on their roles. We will also not want everyone in the company to access our servers for security reasons. Users permissions can be restricted with chown, chmod and chgrp commands.</li>
<li>SSH is one of the most frequently used commands for a SRE. Logging into servers and troubleshooting along with performing basic administration tasks will only be possible if we are able to login into the server.</li>
<li>What if we want to run an apache server or nginx on a server ? We will first install it using the package manager. Package management commands become important here.</li>
<li>Managing services on servers is another critical responsibility of a SRE. Systemd related commands can help in troubleshooting issues. If a service goes down, we can start it using systemctl start command. We can also stop a service in case it is not needed.</li>
<li>Monitoring is another core responsibility of a SRE. Memory and CPU are two important system level metrics which should be monitored. Commands like top and free are quite helpful here.</li>
<li>If a service is throwing an error, how do we find out the root cause of the error ? We will certainly need to check logs to find out the whole stack trace of the error. The log file will also tell us the number of times the error has occurred along with time when it started.</li>
</ol>
<h2 id="useful-courses-and-tutorials">Useful Courses and tutorials</h2>
<ul>
<li><a href="https://courses.edx.org/courses/course-v1:LinuxFoundationX+LFS101x+1T2020/course/">Edx basic linux commands course</a></li>
<li><a href="https://courses.edx.org/courses/course-v1:RedHat+RH066x+2T2017/course/">Edx Red Hat Enterprise Linux Course</a></li>
<li><a href="https://linuxcommand.org/lc3_learning_the_shell.php">https://linuxcommand.org/lc3_learning_the_shell.php</a></li>
</ul>
</article>
</div>
</div>
</main>
<footer class="md-footer">
<div class="md-footer-nav">
<nav class="md-footer-nav__inner md-grid" aria-label="Footer">
<a href="../linux_server_administration/" class="md-footer-nav__link md-footer-nav__link--prev" rel="prev">
<div class="md-footer-nav__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
</div>
<div class="md-footer-nav__title">
<div class="md-ellipsis">
<span class="md-footer-nav__direction">
Previous
</span>
Server Administration
</div>
</div>
</a>
<a href="../../git/git-basics/" class="md-footer-nav__link md-footer-nav__link--next" rel="next">
<div class="md-footer-nav__title">
<div class="md-ellipsis">
<span class="md-footer-nav__direction">
Next
</span>
Git Basics
</div>
</div>
<div class="md-footer-nav__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4z"/></svg>
</div>
</a>
</nav>
</div>
<div class="md-footer-meta md-typeset">
<div class="md-footer-meta__inner md-grid">
<div class="md-footer-copyright">
Made with
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
Material for MkDocs
</a>
</div>
</div>
</div>
</footer>
</div>
<script src="../../assets/javascripts/vendor.7e0ee788.min.js"></script>
<script src="../../assets/javascripts/bundle.b3a72adc.min.js"></script><script id="__lang" type="application/json">{"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.placeholder": "Search", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.term.missing": "Missing"}</script>
<script>
app = initialize({
base: "../..",
features: [],
search: Object.assign({
worker: "../../assets/javascripts/worker/search.4ac00218.min.js"
}, typeof search !== "undefined" && search)
})
</script>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink