Trending questions in Linux Administration

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1 answer

Failed to start the Apache service

Hi@akhtar, I think port no. is busy. Some ...READ MORE

Jun 22, 2020 in Linux Administration by MD
 • 95,440 points • 5,689 views
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1 answer

Error: Failed to download metadata for repo 'epel-modular'

Hi@akhtar, Before running dnf repolist command, try to ...READ MORE

Jun 22, 2020 in Linux Administration by MD
 • 95,440 points • 5,652 views
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1 answer

Select unique lines along with their count in Linux.

Hi@akhtar, You can find the unique entries from ...READ MORE

Oct 20, 2020 in Linux Administration by MD
 • 95,440 points • 414 views
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1 answer

How to configure Gmail in centos7 to send notifications to specific email id's ?

Hi@Shashl, You can use python script in your ...READ MORE

Oct 5, 2020 in Linux Administration by MD
 • 95,440 points • 992 views
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1 answer

How to find the process ID of a program?

Hi@akhtar, You can find one program named pgrep ...READ MORE

Oct 12, 2020 in Linux Administration by MD
 • 95,440 points • 603 views
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1 answer

How to create Physical Volume in Linux?

Hi@akhtar, To create Physical volume in the Linux ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 4,647 views
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1 answer

How to Install tcpdump in Linux?

Hi@akhtar, Many Linux distributions already shipped with tcpdump tool, if ...READ MORE

Oct 3, 2020 in Linux Administration by MD
 • 95,440 points • 842 views
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1 answer

How to gather CPU architecture information of a Linux system?

Hi@akhtar, You can use lscpu command to check ...READ MORE

Oct 12, 2020 in Linux Administration by MD
 • 95,440 points • 466 views
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1 answer

How to measure the time required to run a program?

Hi@akhtar, You can use the time command in ...READ MORE

Oct 12, 2020 in Linux Administration by MD
 • 95,440 points • 435 views
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1 answer

How to remove write permission from a folder in Linux system?

Hi@akhtar, You can use chmod command to remove ...READ MORE

Aug 13, 2020 in Linux Administration by MD
 • 95,440 points • 2,995 views
0 votes
1 answer

How to take care of the latency in file(s) transfer from source to destination when both systems are from different domains ???

If u copy single files, it takes ...READ MORE

Oct 6, 2020 in Linux Administration by Kim
 • 646 views
0 votes
1 answer

Kali linux installation

Hi@Kojokojo, You can check your partitions using the ...READ MORE

Oct 12, 2020 in Linux Administration by MD
 • 95,440 points • 394 views
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1 answer

How to display available interfaces in Linux system?

Hi@akhtar, You can use tcpdump command in your ...READ MORE

Oct 4, 2020 in Linux Administration by MD
 • 95,440 points • 687 views
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1 answer

How to capture only TCP packets in Linux?

Hi@akhtar, You can use tcpdump command for this ...READ MORE

Oct 4, 2020 in Linux Administration by MD
 • 95,440 points • 539 views
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How to find all files containing specific text on Linux?

Hi@akhtar, Linux systems have one interesting command name grep. ...READ MORE

Sep 22, 2020 in Linux Administration by MD
 • 95,440 points • 975 views
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1 answer

Volume group "mylv" not found Cannot process volume group mylv

Hi@akhtar, You got this error because your command ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 4,224 views
0 votes
1 answer

Capture packets from destination IP in Linux.

Hi@akhtar, To capture packets from destination IP, say you ...READ MORE

Oct 4, 2020 in Linux Administration by MD
 • 95,440 points • 426 views
0 votes
1 answer

Error:mvn clean install" in my linux machine to build a maven Project

Hello @Niroj , You need to double check the PATH environment ...READ MORE

Aug 6, 2020 in Linux Administration by anonymous
 • 82,880 points • 2,784 views
0 votes
1 answer

How to change the current time in Linux system?

Hi@akhtar, You can use timedatectl command in your ...READ MORE

Sep 25, 2020 in Linux Administration by MD
 • 95,440 points • 478 views
0 votes
1 answer

Job for ssh.service failed because the control process exited with error code. See “systemctl status ssh.service” and “journalctl -xe” for details

Hi@Sanjana, I'm not sure this will work or ...READ MORE

Feb 13, 2020 in Linux Administration by MD
 • 95,440 points • 10,248 views
0 votes
0 answers

E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

Jul 3, 2020 in Linux Administration by Sudalaimani
 • 120 points • 3,718 views
0 votes
1 answer

How to check permissions of a file in the Linux system?

Hi@akhtar, If you prefer using the command line, ...READ MORE

Aug 13, 2020 in Linux Administration by MD
 • 95,440 points • 1,485 views
0 votes
1 answer

How to change the group of a folder in Linux system?

Hi@akhtar, You can use chgrp command in your ...READ MORE

Aug 14, 2020 in Linux Administration by MD
 • 95,440 points • 1,131 views
0 votes
1 answer

How to configure yum in RedHat system?

Hi@akhtar, By default, RedHat has one ISO file. ...READ MORE

Jul 28, 2020 in Linux Administration by MD
 • 95,440 points • 1,790 views
0 votes
1 answer

How to change the owner of any folder in Linux system?

Hi@akhtar, Linux system has one command named chown. This ...READ MORE

Aug 14, 2020 in Linux Administration by MD
 • 95,440 points • 1,019 views
0 votes
1 answer

Error while installing Let's Encrypt SSL on My Website

Hi@Hitesh, There may be a firewall issue. Check ...READ MORE

Aug 24, 2020 in Linux Administration by MD
 • 95,440 points • 554 views
0 votes
1 answer

Not able to find IP address in VM.

Hi@akhtar, You need to change your network adapter ...READ MORE

Jul 8, 2020 in Linux Administration by MD
 • 95,440 points • 2,316 views
0 votes
1 answer

How to limit upload size in Apache Webserver?

Hi@akhtar, You can make use of the LimitRequestBody directive to ...READ MORE

Jun 8, 2020 in Linux Administration by MD
 • 95,440 points • 3,610 views
0 votes
1 answer

How to give the read power of a folder in Linux system?

Hi@akhtar, You can use chmod command in your ...READ MORE

Aug 13, 2020 in Linux Administration by MD
 • 95,440 points • 667 views
0 votes
1 answer

How to create a group in Linux system?

Hi@MD, On Linux, group information is held in the /etc/group file. ...READ MORE

Aug 14, 2020 in Linux Administration by akhtar
 • 38,230 points • 594 views
0 votes
2 answers

Name or service not known error

use ping google.com dont add www or https READ MORE

Nov 28, 2020 in Linux Administration by CISUR101
 • 9,000 views
0 votes
1 answer

How to add user to a group in Linux system?

Hi@akhtar, In Linux, different users have different roles ...READ MORE

Aug 14, 2020 in Linux Administration by MD
 • 95,440 points • 522 views
0 votes
1 answer

Job for nginx.service failed. See "systemctl status nginx.service" and "journalctl -xe" for details.

Hi@akhtar, I think you didn't install php-fpm rpm ...READ MORE

Apr 24, 2020 in Linux Administration by MD
 • 95,440 points • 4,983 views
0 votes
1 answer

How to install MySQL in Linux system?

Hi@akhtar, You need to install the software for ...READ MORE

Jul 26, 2020 in Linux Administration by MD
 • 95,440 points • 669 views
0 votes
1 answer

How to recover deleted LVM in linux?

Hi@akhtar, Using the command vgcfgrestore we can recover deleted ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 1,350 views
0 votes
1 answer

How to create Logical Volume from Volume Group in Linux?

Hi@akhtar, You can use lvcreate command to create ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 1,122 views
0 votes
1 answer

How to create Volume Group in Linux?

Hi@akhtar, To create a Volume Group, you need ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 1,090 views
0 votes
1 answer

How to increase Logical Volume Size in Linux?

Hi@akhtar, To increase the Logical Volume Size, the ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 1,012 views
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1 answer

How to format Logical Volume in Linux?

Hi@akhtar, In Linux, you can find lots of ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 739 views
0 votes
1 answer

How to configure FTP server in Linux System?

Hi@akhtar, You need to install vsftpd software in ...READ MORE

Jul 9, 2020 in Linux Administration by MD
 • 95,440 points • 623 views
0 votes
1 answer

Proxy Error the proxy server received an invalid response from an upstream server.

Hi@akhtar, I think you did not configure your ...READ MORE

Apr 22, 2020 in Linux Administration by MD
 • 95,440 points • 3,669 views
0 votes
1 answer

redirecting stdout and stderr to file using bash

cmd >>file.txt 2>&1 Bash always executes and redirects ...READ MORE

Mar 19, 2019 in Linux Administration by ajs3033
 • 7,300 points • 20,794 views
0 votes
1 answer

How to run GUI program in SSH server from remote desktop?

Hi@akhtar, First you have to configure SSH server ...READ MORE

Mar 31, 2020 in Linux Administration by MD
 • 95,440 points • 4,195 views
0 votes
1 answer

Unable to login with GUI on CentOS/RHEL

Hi@akhtar, For new installation of CentOS/RHEL, GUI doesn't ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 2,369 views
0 votes
1 answer

group apache does not exist - using root.

Hi@akhtar, When we install apache wevserver in our ...READ MORE

Apr 14, 2020 in Linux Administration by MD
 • 95,440 points • 3,483 views
0 votes
1 answer

How to delete one user from CentOS system?

Hi@akhtar, You can use userdel command to delete ...READ MORE

Jun 19, 2020 in Linux Administration by MD
 • 95,440 points • 602 views
0 votes
1 answer

How to block an IP address to connect my webserver?

Hi@akhtar, You can block one IP address using ...READ MORE

Jun 10, 2020 in Linux Administration by MD
 • 95,440 points • 567 views
0 votes
1 answer

How to unblock one IP from black list?

Hi@akhtar, To unblock your blacklisted IP address, you ...READ MORE

Jun 10, 2020 in Linux Administration by MD
 • 95,440 points • 551 views
0 votes
1 answer

How to Unblock SSH and FTP Access to Specific IP in Linux?

Firewalls(most of them) can either Reject or ...READ MORE

Jul 16, 2019 in Linux Administration by Archana
 • 5,640 points • 14,723 views
0 votes
1 answer

How to Configuring NTP server using chrony?

Hi@akhtar, To use NTP server in your system, ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 1,677 views
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