ssh-keygen fails to create keys when FQDN=64 chars
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| openssh (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
According to RFC's a FQDN hostname may have up to 64 chars. Nevertheless ssh-keygen fails to create a key when it has exactly these 64 chars:
Hostname (edited to hide , but with same amount of chars):
abcde-frontend-
It fails with this message:
gethostname: File name too long
Not being able to create a key means that openssh-server postinst will fail with this message:
Setting up openssh-server (1:6.6p1-2ubuntu1) ...
Creating SSH2 ED25519 key; this may take some time ...gethostname: File name too long
dpkg: error processing package openssh-server (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
openssh-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
Tested on:
Ubuntu 14.04 LTS
openssh-client versions tested:
Installed: 1:6.6p1-2ubuntu1
Candidate: 1:6.6p1-2ubuntu2.3
Looks like s imilar bug report on RedHat bug tracker: https:/
