Most answered questions in Linux Administration

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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
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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
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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

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
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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 • 5,651 views
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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
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 • 601 views
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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 • 549 views
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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
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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 • 3,604 views
0 votes
1 answer

error: Putty.exe has been denied access to IP

Hi@akhtar, The error may occur because of firewall. Your ...READ MORE

May 28, 2020 in Linux Administration by MD
 • 95,440 points • 634 views
+1 vote
1 answer

How to configure NFS server in Linux?

Hi@akhtar, To configure NFS server in your system, ...READ MORE

May 27, 2020 in Linux Administration by MD
 • 95,440 points • 759 views
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1 answer

How to create one crontab job in Linux?

Hi@akhtar, To configure crontab in your system, you ...READ MORE

May 13, 2020 in Linux Administration by MD
 • 95,440 points • 630 views
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1 answer

How to activate a SUSPENDED LVM physical volume?

Hi@akhtar, To reactivate the PV or resume the ...READ MORE

May 12, 2020 in Linux Administration by MD
 • 95,440 points • 1,067 views
+1 vote
1 answer

Failed to start Crash recovery kernel arming.

Hi@akhtar, To avoid this error you can follow ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 16,706 views
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1 answer

How to break root password in CentOS/RHEL 8?

Hi@akhtar, Reboot the system and interrupt the boot ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 1,477 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 • 2,368 views
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1 answer

fdisk: Unable to write /dev/sdg: Bad file descriptor

Hi@akhtar, You may get this error if your ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 1,635 views
0 votes
1 answer

ERROR Request entity too large. Request exceeds the capacity limit

Hi@akhtar, The file download size limit is controlled ...READ MORE

May 11, 2020 in Linux Administration by MD
 • 95,440 points • 1,430 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 • 1,674 views
+1 vote
1 answer

Termux Android code for phishing the page

Hey, @Vaibhav, After complete all the process and once ...READ MORE

Apr 27, 2020 in Linux Administration by Gitika
 • 65,910 points
edited Apr 30, 2020 by Gitika • 10,045 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 • 4,982 views
0 votes
1 answer

How to install nginx web server in CentOS/RHEL?

Hi@akhtar, To install nginx in your system, you ...READ MORE

Apr 24, 2020 in Linux Administration by MD
 • 95,440 points • 612 views
0 votes
1 answer

Could not find a version that satisfies the requirement ipykernel (from jupyter==1.0.0) (from versions: )

Hi@akhtar, You may get this error because of ...READ MORE

Apr 23, 2020 in Linux Administration by MD
 • 95,440 points • 18,160 views
0 votes
1 answer

Failed to start httpd.service: Unit httpd.service is masked.

Hi@akhtar, A masked service is used to prevent ...READ MORE

Apr 23, 2020 in Linux Administration by MD
 • 95,440 points • 12,939 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

How to configure Haproxy load balancer?

Hi@akhtar, Yes you can implement load balancing concept ...READ MORE

Apr 22, 2020 in Linux Administration by MD
 • 95,440 points • 699 views
0 votes
1 answer

How to install httpd web server in Linux?

Hi@akhtar, To install httpd web server in CentOS/RHEL ...READ MORE

Apr 21, 2020 in Linux Administration by MD
 • 95,440 points • 645 views
0 votes
1 answer

How to change port no 80 of httpd webserver?

Hi@akhtar, You can change port no of httpd ...READ MORE

Apr 21, 2020 in Linux Administration by MD
 • 95,440 points • 2,110 views
0 votes
1 answer

not able to run netstat-tnlp in Linux.

Hi@akhtar, In Linux system netstat-tnlp command comes from ...READ MORE

Apr 16, 2020 in Linux Administration by MD
 • 95,440 points • 786 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 • 3,481 views
0 votes
1 answer

How many partitions can be created from hard disk?

Hi@akhtar, You can make four primary partitions in ...READ MORE

Apr 8, 2020 in Linux Administration by MD
 • 95,440 points • 2,572 views
0 votes
1 answer

How to create one new partition in my hard disk in Linux?

Hi@akhtar, To create new partition you can follow ...READ MORE

Apr 7, 2020 in Linux Administration by MD
 • 95,440 points • 988 views
0 votes
1 answer

How to set key based authentication in remote machine?

Hi@akhtar, You can set key based authentication in ...READ MORE

Apr 1, 2020 in Linux Administration by MD
 • 95,440 points • 479 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 • 4,192 views
0 votes
1 answer

How to configure SSH server in RHEL/CentOS?

Hi@MD, To configure SSH server to your system, ...READ MORE

Mar 30, 2020 in Linux Administration by akhtar
 • 38,230 points • 813 views
0 votes
1 answer

What is the difference between ctrl z and ctrl c in command line?

Hi@akhtar, Generally, these two commands are used to ...READ MORE

Feb 24, 2020 in Linux Administration by MD
 • 95,440 points • 45,138 views
0 votes
1 answer

How to install python-poster in RedHat?

Hi@akhtar, To install python-poster in RedHat/CentOs, you can ...READ MORE

Feb 11, 2020 in Linux Administration by MD
 • 95,440 points • 654 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
1 answer

Auto renewal of SSL certificates

You can something called cron job. Basically ...READ MORE

Dec 13, 2019 in Linux Administration by Aron
 • 867 views
0 votes
1 answer

Enable https on a Linux system

Hi @hannah, you can execute the following ...READ MORE

Dec 13, 2019 in Linux Administration by Priyaj
 • 568 views
0 votes
1 answer

Deploy a static website on a webserver

Hi @hannah. You are right, you need ...READ MORE

Dec 13, 2019 in Linux Administration by Travis
 • 2,233 views
0 votes
1 answer

dpkg error: dpkg status database is locked by another process

First run: lsof /var/lib/dpkg/lock Then make sure that process ...READ MORE

Aug 27, 2019 in Linux Administration by Sirajul
 • 59,230 points • 5,606 views
0 votes
1 answer

How do i enable universe repository in Ubuntu 18.04?

If you want in one command and ...READ MORE

Aug 27, 2019 in Linux Administration by Sirajul
 • 59,230 points • 7,107 views
0 votes
1 answer

Install aptitude on Ubuntu

You just have to run one single ...READ MORE

Aug 26, 2019 in Linux Administration by Barca
 • 5,122 views
0 votes
1 answer

Linux tar: gzip: stdin: unexpected end of file

The error you're getting may be because ...READ MORE

Aug 9, 2019 in Linux Administration by Kunal
 • 53,584 views
0 votes
1 answer

apt-get update takes no argument

The command  sudo apt-get update is used to update ...READ MORE

Jul 30, 2019 in Linux Administration by Vinci
 • 21,073 views
0 votes
1 answer

How to execute a linux command repeatedly after a set time?

To watch the step every say 30 ...READ MORE

Jul 26, 2019 in Linux Administration by ajs3033
 • 7,300 points • 768 views
0 votes
1 answer

Input file name in the mapper in a Hadoop program

Try this inside your mapper : FileSplit fileSplit ...READ MORE

Jul 23, 2019 in Linux Administration by Shubham
 • 13,490 points • 2,863 views
0 votes
1 answer

HTTP POST and GET using cURL

You can just add | grep }| ...READ MORE

Jul 22, 2019 in Linux Administration by Upasana
 • 8,620 points • 785 views
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