18.04.01 Not available for server
4660
Should I be offered the option to upgrade to 18.04.1?
18603
What does "The provided host name is not valid for this server" mean?
58690
Official StackExchange app says my question is not available?
124576
Unable to download from an authenticated webserver
74069
Can't update drupal core to 7.27
125639
client denied by server configuration
94621
archive.ubuntu.com missing raring-updates
150705
Error: Refresh failed because resolved configuration is not available
117557
When will Ubuntu 18.04 release and at what time?
24204
How do I get on a Minecraft PE server when it says 'invalid name'?
9901
How to upgrade from 18.10 to 19.10, using the command line?
105992
What is the difference between ubuntu-18.04-server and ubuntu-18.04-live-server?
137276
/dev/tcp not found
142719
Update KB4088849 is not applicable to the equipment, Windows Server 2016
39913
LAN not working on 17.04
143813
Cannot connect to X server :0.0 as superuser
50810
No upgrade available for 19.04 from 18.10