Most voted questions in Linux Administration

+4 votes
3 answers

Glusterfs fuse client consuming high memory - memory leak

'Stale File Handle error' occurs when the ...READ MORE

Oct 22, 2018 in Linux Administration by Kalgi
• 51,950 points
1,659 views
+2 votes
5 answers

Error: dpkg frontend is locked by another process

First, find out the id of the process that ...READ MORE

Aug 7, 2019 in Linux Administration by Sirajul
• 57,760 points
58,109 views
+2 votes
2 answers

Ubuntu installing problem

Hey Prince! This seems to be like a ...READ MORE

Oct 15, 2018 in Linux Administration by Omkar
• 69,030 points

edited Oct 15, 2018 by Kalgi 111 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 in Linux Administration by MD
• 54,360 points
95 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 in Linux Administration by MD
• 54,360 points
2,059 views
+1 vote
0 answers

Could not start the machine edureka_host_vm because the following physical network interfaces were not found:

Could not start the machine edureka_host_vm because ...READ MORE

Jan 28 in Linux Administration by Harish
• 130 points
143 views
+1 vote
0 answers

I am getting error as undefined reference how to resolve it?

this is the error i got main.c:(.text+0x6c): undefined ...READ MORE

Dec 5, 2019 in Linux Administration by pooja
• 130 points
312 views
+1 vote
2 answers

if the File system is full how to troubleshoot ?

Check filesystem usage. df -h If /var is showing ...READ MORE

Nov 18, 2019 in Linux Administration by Sirajul
• 57,760 points
321 views
+1 vote
0 answers
+1 vote
1 answer

Not able to install npm on Ubuntu

Try installing npm using aptitude: sudo apt install aptitude sudo ...READ MORE

Nov 28, 2018 in Linux Administration by Omkar
• 69,030 points
3,932 views
+1 vote
3 answers

Backing up specific files and renaming them via Bash

I needed to do a similar thing ...READ MORE

Apr 26, 2019 in Linux Administration by Gagan
882 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 in Linux Administration by MD
• 54,360 points
40 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 in Linux Administration by MD
• 54,360 points
47 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 13 in Linux Administration by MD
• 54,360 points
43 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 13 in Linux Administration by akhtar
• 24,430 points
40 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 13 in Linux Administration by MD
• 54,360 points
57 views
0 votes
1 answer

chmod: changing permissions of '/root/': Operation not permitted

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

Aug 13 in Linux Administration by MD
• 54,360 points
187 views
0 votes
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 in Linux Administration by MD
• 54,360 points
54 views
0 votes
1 answer

ls: cannot open directory '.': Permission denied

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

Aug 13 in Linux Administration by MD
• 54,360 points
205 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 in Linux Administration by MD
• 54,360 points
51 views
0 votes
1 answer

-bash: cd: /root/: Permission denied

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

Aug 13 in Linux Administration by MD
• 54,360 points
496 views
0 votes
1 answer

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

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

Aug 13 in Linux Administration by MD
• 54,360 points
63 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 in Linux Administration by MD
• 54,360 points
61 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 in Linux Administration by anonymous
• 57,100 points
120 views
0 votes
1 answer

How to configure yum in RedHat system?

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

Jul 27 in Linux Administration by MD
• 54,360 points
70 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 in Linux Administration by MD
• 54,360 points
51 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 in Linux Administration by MD
• 54,360 points
73 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 in Linux Administration by MD
• 54,360 points
61 views
0 votes
1 answer

How to format Logical Volume in Linux?

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

Jul 9 in Linux Administration by MD
• 54,360 points
63 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 in Linux Administration by MD
• 54,360 points
59 views
0 votes
1 answer

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

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

Jul 8 in Linux Administration by MD
• 54,360 points
185 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 8 in Linux Administration by MD
• 54,360 points
54 views
0 votes
1 answer

How to create Volume Group in Linux?

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

Jul 8 in Linux Administration by MD
• 54,360 points
48 views
0 votes
1 answer

How to create Physical Volume in Linux?

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

Jul 8 in Linux Administration by MD
• 54,360 points
43 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 in Linux Administration by MD
• 54,360 points
43 views
0 votes
1 answer

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

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

Jun 22 in Linux Administration by MD
• 54,360 points
643 views
0 votes
1 answer

Failed to start the Apache service

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

Jun 22 in Linux Administration by MD
• 54,360 points
222 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 in Linux Administration by MD
• 54,360 points
51 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 9 in Linux Administration by MD
• 54,360 points
76 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 9 in Linux Administration by MD
• 54,360 points
80 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 in Linux Administration by MD
• 54,360 points
97 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 in Linux Administration by MD
• 54,360 points
70 views
0 votes
0 answers
0 votes
1 answer

How to create one crontab job in Linux?

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

May 13 in Linux Administration by MD
• 54,360 points
97 views
0 votes
1 answer

How to activate a SUSPENDED LVM physical volume?

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

May 12 in Linux Administration by MD
• 54,360 points
91 views
0 votes
1 answer

How to break root password in CentOS/RHEL 8?

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

May 11 in Linux Administration by MD
• 54,360 points
90 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 in Linux Administration by MD
• 54,360 points
85 views
0 votes
1 answer

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

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

May 11 in Linux Administration by MD
• 54,360 points
114 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 in Linux Administration by MD
• 54,360 points
90 views