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I installed tripwire and by mistake asked it to install postfix. How can I remove postfix and not lose tripwire?

root@blah:~# apt-get remove postfix 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  mailutils postfix tripwire
0 upgraded, 0 newly installed, 3 to remove and 10 not upgraded.
After this operation, 16.4 MB disk space will be freed.
Do you want to continue? [Y/n] n
Abort.

-

root@blah:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 15.10
Release:        15.10
Codename:       wily
user584583
  • 109

1 Answers1

2

Postfix most likely your default MTA and the Tripwire package has it defined as a dependency. This is why when you attempt to remove postfix it takes Tripwire with it.

If you already have a mail agent installed you can remove postfix and reinstall tripwire using apt-get --nodeps.

Personally I'd avoid this and leave well enough alone. You can always leave it installed but the services disabled until needed.

Tim Brigham
  • 15,655