{"id":1893,"date":"2024-03-06T12:30:11","date_gmt":"2024-03-06T12:30:11","guid":{"rendered":"https:\/\/www.devopsfreelancer.com\/blog\/?p=1893"},"modified":"2024-03-06T12:30:15","modified_gmt":"2024-03-06T12:30:15","slug":"heres-a-list-of-50-linux-commands-commonly-used-for-troubleshooting-a-linux-server","status":"publish","type":"post","link":"https:\/\/www.devopsfreelancer.com\/blog\/heres-a-list-of-50-linux-commands-commonly-used-for-troubleshooting-a-linux-server\/","title":{"rendered":"Here&#8217;s a list of 50 Linux commands commonly used for troubleshooting a Linux server:"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. <strong>ping Command<\/strong><\/h2>\n\n\n\n<p>Tests connectivity to a remote host.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ping wizbrand.com\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">2. <strong>netstat Command<\/strong><\/h2>\n\n\n\n<p>Displays network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>netstat -tuln\r<\/code><\/pre>\n\n\n\n<p>Output: &#8211;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"799\" height=\"521\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-2.png\" alt=\"\" class=\"wp-image-1894\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-2.png 799w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-2-300x196.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-2-768x501.png 768w\" sizes=\"auto, (max-width: 799px) 100vw, 799px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">3. <strong>ss Command<\/strong><\/h2>\n\n\n\n<p>Displays socket statistics.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ss -tuln\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">4. <strong>ifconfig Command<\/strong><\/h2>\n\n\n\n<p>Displays or configures network interfaces.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ifconfig<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">5. <strong>ip Command<\/strong><\/h2>\n\n\n\n<p>Provides extensive networking information.<\/p>\n\n\n\n<p>Example :-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ip addr show\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">6. <strong>arp Command<\/strong><\/h2>\n\n\n\n<p>Displays the ARP cache.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arp -a\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"106\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-3-1024x106.png\" alt=\"\" class=\"wp-image-1895\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-3-1024x106.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-3-300x31.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-3-768x79.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-3.png 1141w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">7. <strong>route Command<\/strong><\/h2>\n\n\n\n<p>Displays and manipulates the IP routing table.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>route -n\r<\/code><\/pre>\n\n\n\n<p>Output :- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"202\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-4-1024x202.png\" alt=\"\" class=\"wp-image-1896\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-4-1024x202.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-4-300x59.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-4-768x152.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-4.png 1358w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">8. <strong>dig Command<\/strong><\/h2>\n\n\n\n<p>Performs DNS lookup and displays the response.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig wizbrand.com\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"978\" height=\"497\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-5.png\" alt=\"\" class=\"wp-image-1897\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-5.png 978w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-5-300x152.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-5-768x390.png 768w\" sizes=\"auto, (max-width: 978px) 100vw, 978px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">9. <strong>host Command<\/strong><\/h2>\n\n\n\n<p>Performs DNS lookup and displays the response.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>host wizbrand.com<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"280\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-6-1024x280.png\" alt=\"\" class=\"wp-image-1898\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-6-1024x280.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-6-300x82.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-6-768x210.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-6.png 1138w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">10. <strong>uptime Command<\/strong>:<\/h2>\n\n\n\n<p>Displays system uptime and load average.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>uptime<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"125\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-7-1024x125.png\" alt=\"\" class=\"wp-image-1899\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-7-1024x125.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-7-300x36.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-7-768x93.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-7.png 1365w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">11. <strong>free Command<\/strong><\/h2>\n\n\n\n<p>Displays free and used memory in the system.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>free -m\r<\/code><\/pre>\n\n\n\n<p>Output:-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"183\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-8-1024x183.png\" alt=\"\" class=\"wp-image-1900\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-8-1024x183.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-8-300x54.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-8-768x137.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-8.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">12 <strong>df Command<\/strong><\/h2>\n\n\n\n<p>Displays disk space usage.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -h\r<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"406\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-10-1024x406.png\" alt=\"\" class=\"wp-image-1902\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-10-1024x406.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-10-300x119.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-10-768x305.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-10.png 1346w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">13 <strong>du Command<\/strong><\/h2>\n\n\n\n<p>Displays disk usage of files and directories.<\/p>\n\n\n\n<p>Example :-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>du -sh htdocs<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"260\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-11-1024x260.png\" alt=\"\" class=\"wp-image-1903\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-11-1024x260.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-11-300x76.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-11-768x195.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-11.png 1149w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>14. <strong>ps Command<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Displays a snapshot of current processes.<\/h2>\n\n\n\n<p>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>ps aux<\/code><\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"495\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-12-1024x495.png\" alt=\"\" class=\"wp-image-1904\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-12-1024x495.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-12-300x145.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-12-768x371.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-12.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">15. <strong>top Command<\/strong><\/h2>\n\n\n\n<p>Displays real-time information about system processes and resource usage.<\/p>\n\n\n\n<p>Example:- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>top\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-13-1024x576.png\" alt=\"\" class=\"wp-image-1905\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-13-1024x576.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-13-300x169.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-13-768x432.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-13.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">16 <strong>htop Command<\/strong>:<\/h2>\n\n\n\n<p>Interactive process viewer.<\/p>\n\n\n\n<p>Example :- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>htop\r<\/code><\/pre>\n\n\n\n<p>Output:-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-14-1024x576.png\" alt=\"\" class=\"wp-image-1906\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-14-1024x576.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-14-300x169.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-14-768x432.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-14.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">17. <strong>lsof Command<\/strong><\/h2>\n\n\n\n<p>Lists open files and the processes that opened them.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsof<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"218\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-15-1024x218.png\" alt=\"\" class=\"wp-image-1907\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-15-1024x218.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-15-300x64.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-15-768x163.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-15.png 1351w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">18. <strong>strace Command<\/strong><\/h2>\n\n\n\n<p>Traces system calls and signals.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>strace -p PID\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">19. <strong>dmesg Command<\/strong><\/h2>\n\n\n\n<p>Displays kernel ring buffer messages<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dmesg<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"526\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16-1024x526.png\" alt=\"\" class=\"wp-image-1908\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16-1024x526.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16-300x154.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16-768x395.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16-440x226.png 440w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-16.png 1356w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">20. <strong>journalctl Command<\/strong><\/h2>\n\n\n\n<p>Views system logs (systemd).<br>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl -xe\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"498\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-17-1024x498.png\" alt=\"\" class=\"wp-image-1909\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-17-1024x498.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-17-300x146.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-17-768x374.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-17.png 1354w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">21. <strong><strong>lsmod Command<\/strong><\/strong><\/h2>\n\n\n\n<p>Lists loaded kernel modules<\/p>\n\n\n\n<p>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsmod\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"959\" height=\"178\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-18.png\" alt=\"\" class=\"wp-image-1910\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-18.png 959w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-18-300x56.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-18-768x143.png 768w\" sizes=\"auto, (max-width: 959px) 100vw, 959px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">22. <strong>tcpdump Command<\/strong><\/h2>\n\n\n\n<p>Captures and displays network packets.<\/p>\n\n\n\n<p>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tcpdump -i eth0\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"161\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-19-1024x161.png\" alt=\"\" class=\"wp-image-1911\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-19-1024x161.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-19-300x47.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-19-768x120.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-19.png 1365w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">23. <strong>iftop Command<\/strong><\/h2>\n\n\n\n<p>Displays bandwidth usage on an interface.<\/p>\n\n\n\n<p>Example:- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iftop -i eth0\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"130\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-20-1024x130.png\" alt=\"\" class=\"wp-image-1912\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-20-1024x130.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-20-300x38.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-20-768x97.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-20.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">24. <strong>nmap Command<\/strong>:<\/h2>\n\n\n\n<p>Network exploration tool and security scanner.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nmap -p 1-1000 wizbrand.com<\/code><\/pre>\n\n\n\n<p>Output:-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"480\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-21-1024x480.png\" alt=\"\" class=\"wp-image-1913\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-21-1024x480.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-21-300x141.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-21-768x360.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-21.png 1360w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">25. <strong>route Command<\/strong><\/h2>\n\n\n\n<p>Manually manipulates the IP routing table<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>route -n\r<\/code><\/pre>\n\n\n\n<p>Output:-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"271\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-22-1024x271.png\" alt=\"\" class=\"wp-image-1914\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-22-1024x271.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-22-300x80.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-22-768x204.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-22.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">26. <strong>vmstat Command<\/strong><\/h2>\n\n\n\n<p>Displays virtual memory statistics.<\/p>\n\n\n\n<p>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vmstat 1\r<\/code><\/pre>\n\n\n\n<p>Output:-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"451\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-23-1024x451.png\" alt=\"\" class=\"wp-image-1915\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-23-1024x451.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-23-300x132.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-23-768x338.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-23.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">27 <strong>sar Command<\/strong><\/h2>\n\n\n\n<p>Collects, reports, and saves system activity information.<\/p>\n\n\n\n<p>Example:-<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sar -u 1\r<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"282\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-24-1024x282.png\" alt=\"\" class=\"wp-image-1916\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-24-1024x282.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-24-300x83.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-24-768x211.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-24.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">28. <strong>lscpu Command<\/strong><\/h2>\n\n\n\n<p>Displays information about the CPU architecture<\/p>\n\n\n\n<p>Example:- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lscpu<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"518\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-25-1024x518.png\" alt=\"\" class=\"wp-image-1917\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-25-1024x518.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-25-300x152.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-25-768x388.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-25.png 1359w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">29. <strong>lsblk Command<\/strong><\/h2>\n\n\n\n<p>Lists block devices.<\/p>\n\n\n\n<p>Example:- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsblk<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"338\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-26-1024x338.png\" alt=\"\" class=\"wp-image-1918\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-26-1024x338.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-26-300x99.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-26-768x254.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-26.png 1333w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">30 <strong>lsusb Command<\/strong><\/h2>\n\n\n\n<p>Lists USB devices.<\/p>\n\n\n\n<p>Example:- <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>lsusb<\/code><\/pre>\n\n\n\n<p>Output:- <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"186\" src=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-27-1024x186.png\" alt=\"\" class=\"wp-image-1919\" srcset=\"https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-27-1024x186.png 1024w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-27-300x54.png 300w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-27-768x139.png 768w, https:\/\/www.devopsfreelancer.com\/blog\/wp-content\/uploads\/2024\/03\/image-27.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Thanks for reading \ud83d\udc4d\ud83d\udc4d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. ping Command Tests connectivity to a remote host. 2. netstat Command Displays network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Output: &#8211; 3&#8230;. <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[28,740,670,521],"class_list":["post-1893","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-linux-administrator","tag-linux-command","tag-linux-error"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Here&#039;s a list of 50 Linux commands commonly used for troubleshooting a Linux server: - DevOps Freelancer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.devopsfreelancer.com\/blog\/heres-a-list-of-50-linux-commands-commonly-used-for-troubleshooting-a-linux-server\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Here&#039;s a list of 50 Linux commands commonly used for troubleshooting a Linux server: - DevOps Freelancer\" \/>\n<meta property=\"og:description\" content=\"1. ping Command Tests connectivity to a remote host. 2. netstat Command Displays network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. 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