Category: centos 7

How to completely get rid of abrt service

1943  admin  
(last edited )

Disable the abrtd service

service abrtd status
systemctl stop abrtd
systemctl disable abrtd
systemctl daemon-reload

At this step you can get when accessing SSH

‘abrt-cli status’ timed out

Check yum:

yum list abrt*

And remove:

yum remove abrt*

Run cagefs update if any:

cagefsctl --force-update
… Read the rest

How to install/reinstall mailman on cPanel server

1931  admin  
(last edited )

Check Tweak Settings, should be ‘0’

cat /var/cpanel/cpanel.config |grep skipmailman

skipmailman=0

Deprecated scripts

/scripts/reinstallmailman
/usr/local/cpanel/bin/mailman-install --force

Deprecated scripts:

/usr/local/cpanel/scripts/update_local_rpm_versions --edit target_settings.mailman installed
/usr/local/cpanel/scripts/check_cpanel_rpms --fix --targets=mailman

The latest way to reinstall mailman on cPanel server:

rpm -e --nodeps cpanel-mailman
/usr/local/cpanel/scripts/check_cpanel_rpms --fix --targets=mailman

Run upcp:

/scripts/upcp --force
systemctl start mailman.service
… Read the rest

How to create a file of specific size using Linux command line

1816  admin  
(last edited )

Reduce size using truncate command

Run for a second:

yes "some text" > testfile.txt

Reduce size using truncate:

truncate -s 50M testfile.txt

Create 50M file using fallocate command

fallocate -l 52428800 testfile.txt

To be more exact using inline arithmetic:

fallocate -l $((50*1024*1024)) testfile.txt
… Read the rest

Configure CSF on CentOS 7

1789  admin  

Install needful packages if you haven’t yet

yum install wget vim perl-libwww-perl.noarch perl-Time-HiRes -y

Download and install CSF

cd /usr/src/
wget https://download.configserver.com/csf.tgz
tar -xzf csf.tgz
cd csf
sh install.sh

Run test:

cd /usr/local/csf/bin/
perl csftest.pl

Disable default Centos 7 firewall if you have it installed

systemctl stop firewalld
systemctl disable firewalld

Disable testing mode

cd /etc/csf/
vim csf.conf
… Read the rest