Trending questions in Linux Administration

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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
• 95,460 points
732 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, 2020 in Linux Administration by MD
• 95,460 points
1,872 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
• 95,460 points
962 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
• 95,460 points
1,673 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
• 95,460 points
829 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
• 95,460 points
2,376 views
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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
• 95,460 points
2,841 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, 2020 in Linux Administration by MD
• 95,460 points
1,325 views
0 votes
0 answers

Hello,everyone . I want to ask question .

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May 22, 2020 in Linux Administration by chhoeurn
• 120 points
714 views
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, 2020 in Linux Administration by MD
• 95,460 points
839 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
• 95,460 points
821 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
• 95,460 points
899 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
• 95,460 points
1,047 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
• 95,460 points
805 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
• 95,460 points
1,164 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
• 38,260 points
1,030 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
• 95,460 points
751 views
0 votes
1 answer

Error saying " Invalid operation uninstall" on sudo apt uninstall apache2

Try this: sudo apt-get cpufrequtils is missing a mandatory ...READ MORE

May 14, 2019 in Linux Administration by Yesha
14,696 views
0 votes
0 answers

Trying to configure rsyslog server but I am facing challanges

Here are the steps which i have ...READ MORE

Mar 5, 2020 in Linux Administration by anonymous
• 120 points
682 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
• 59,230 points
5,167 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
• 95,460 points
971 views
0 votes
2 answers
+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, 2020 in Linux Administration by Harish
• 130 points
1,090 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
7,322 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
2,586 views
0 votes
1 answer

awk: to print all columns from the nth to the last

the following will print all but the ...READ MORE

Jul 19, 2019 in Linux Administration by Shubham
• 13,490 points
8,924 views
0 votes
1 answer

Cannot understand this "No X11 DISPLAY variable" error thrown at me

If you're on the main display, then export ...READ MORE

Jun 5, 2019 in Linux Administration by Upasana
• 8,620 points
10,712 views
0 votes
2 answers

how to loop through the content of a file using bash

#!/bin/bash for i in  `cat peptides.txt` do echo $i done READ MORE

Sep 5, 2020 in Linux Administration by Prakash K. Aithal
2,934 views
0 votes
1 answer

Linux : Undefined reference to pthread_create

Try this; gcc -pthread -o term term.c Hope this ...READ MORE

May 29, 2019 in Linux Administration by Shubham
• 13,490 points
10,105 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
1,754 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
6,040 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
1,085 views
0 votes
1 answer

Cant find library in /usr/bin/ld

Say your library "libxyz.so" is located in: /home/user/myDir then ...READ MORE

Mar 26, 2019 in Linux Administration by ajs3033
• 7,300 points
12,358 views
0 votes
1 answer

Can I analyze a program's core dump file with GDB when it has command-line parameters?

You can simply use of GDB, to debug ...READ MORE

Jul 1, 2019 in Linux Administration by Shubham
• 13,490 points
8,038 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
5,492 views
+1 vote
1 answer

Error :Ethernet Cable unplugged in Ubuntu

Try this: $ sudo ifconfig eth0 down $ sudo ...READ MORE

Feb 9, 2019 in Linux Administration by Omkar
• 69,220 points
13,966 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
736 views
0 votes
0 answers

Two SSL cert. How to tell Nginx which one to use?

I have two SSL certs (I have ...READ MORE

Dec 13, 2019 in Linux Administration by Hannah
• 18,540 points
706 views
0 votes
1 answer

Ubuntu 10.10: Connecting to a terminal to a serial-to-USB device on Maverick Meerkat

Check with dmesg | grep tty if system recognize ...READ MORE

Jun 10, 2019 in Linux Administration by Upasana
• 8,620 points
8,176 views
0 votes
1 answer

How to find path of software installed in Linux?

There are multiple ways to find the ...READ MORE

May 20, 2019 in Linux Administration by Rishi
8,303 views
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1 answer

How to extract file base name without path and extension in bash?

You don't actually have to call the ...READ MORE

May 31, 2019 in Linux Administration by Shubham
• 13,490 points
5,884 views
0 votes
0 answers

Error while opening Edureka VM on virtual box

Hi Team, I am using windows 10 machine ...READ MORE

Sep 24, 2019 in Linux Administration by Kiran
• 120 points
886 views
0 votes
1 answer

How to increase Swap Memory in CentOS 7?

Follow the below steps and procedures: Prerequisites Must have ...READ MORE

Oct 5, 2018 in Linux Administration by Frankie
• 9,830 points
15,897 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
3,203 views
+1 vote
0 answers
0 votes
2 answers

How do I find all files containing specific text and rename in unix/linux

Hi, @Kal You can use this command below to ...READ MORE

Jul 2, 2019 in Linux Administration by Gitika
• 65,890 points

edited Jul 2, 2019 by Gitika 2,662 views
0 votes
1 answer

To attach a file using mail command on Linux

$ echo | mutt -a syslogs.tar.gz admin@domain.org READ MORE

Jun 28, 2019 in Linux Administration by Upasana
• 8,620 points
2,827 views
0 votes
1 answer

Using shell variables in an awk script

Using -v is, imo, The best way because ...READ MORE

Jul 1, 2019 in Linux Administration by Shubham
• 13,490 points
2,649 views
0 votes
1 answer

to pass the user's password to scp

Try using the 'expect' script on the ...READ MORE

May 29, 2019 in Linux Administration by Shubham
• 13,490 points
3,999 views
0 votes
1 answer

Running scripts as a different user without password

You'll have to edit you sudoers file ...READ MORE

Jul 3, 2019 in Linux Administration by DareDev
• 6,890 points
2,215 views