4
votes
Accepted
High swap usage on Ubuntu server
As you can see from vmstat output you do not have si or so activities, even the average (first line) is negligible. Try to play with swappiness but if you do not see serious performance degradation ...
- 3,015
2
votes
Postfix mysql warning: /etc/postfix/sql/mysql_virtual_alias_maps.cf: Permission denied
As expected, your postfix user has no permissions to read the configuration files.
sudo chmod o+r /etc/postfix/sql/*
Or, if you don't want other users to read the files
sudo chown :postfix /etc/...
- 19.3k
2
votes
High swap usage on Ubuntu server
In my opinion, this shouldn't be interpreted as an argument to do a RAM upgrade directly since there are many factors regarding SWAP, one being swappiness.
From Ubuntu FAQs:
What is swappiness and how ...
- 23
1
vote
How to run two different applications simultaneously in same port with same Machine in Ubuntu
You may assign different ip addresses to your nic(s). Each application should listen on different ip possibly with the same port.
Like 192.168.0.3:3000 and 192.168.0.4:3000.
For public service you ...
- 250
1
vote
Accepted
When ufw enabled, FTP client stuck on: 150 Opening ASCII mode data connection
As you have open already port 20 you can make ftp to use passive connection by enter command pass after you authenticate.
- 3,015
1
vote
how to stop scheduled auto reboots on Ubuntu
You can check in cron records for root user. IMHO other users can't reboot your machine.
And next time be careful when install unknown scripts :)
- 3,015
1
vote
Ubuntu Server 21.04 Update Error On apt update
Ubuntu 21.04 (Hirsute Hippo) End of Life reached on January 20 2022.
- 8,139
1
vote
Accepted
Why I can not register gitlab-runner? 10.0.2.3:53: server misbehaving
I had a similar issue/error msg which seemed to be saying that the gitlab server couldn't be found.
ERROR: Registering runner... failed
runner=XXXX status=couldn't execute POST ...
- 26
Only top scored, non community-wiki answers of a minimum length are eligible