Public bug reported:
The current unit section looks like this:
[Unit]
Description=vsftpd FTP server
After=network.target
So it means the network should exist, but after network.target, it may
not be up and may not have been assigned IP addresses. What works much
better is:
[Unit]
Description=vsftpd FTP server
Wants=network-online.target
After=network-online.target
This change means:
1. the network is up
2. at least one interface has an IP address (apparently we cannot force all
interfaces to be ready)
3. the Wants= also ensures that the network-only.target is actually started (in
case vsftp.service is the only service that needs the network)
In my case, I have a specific IP address because I want FTP only on my
LAN:
listen=YES
listen_port=1234
listen_address=192.168.203.1
The failure is the 192.168.203.1. The corresponding interface is not up
yet so the bind() fails (at least I would imagine that's the point of
failure--I did not confirm that).
There is another case on stackoverflow.com:
https://unix.stackexchange.com/a/729419/57773
That one uses an address for the passive setup:
pasv_addr_resolve=YES
pasv_address=xxx.yyy.org
which also fails at boot time because the DNS is not yet ready. In that
case, though, maybe it is necessary to start After= the resolver. That
would probably be this:
After=network-online.target nss-lookup.target
So the final change would be:
[Unit]
Description=vsftpd FTP server
Wants=network-online.target nss-lookup.target
After=network-online.target nss-lookup.target
Version: vsftpd_3.0.5-0ubuntu3.1.debian.tar.xz
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.2 LTS
Release: 24.04
Codename: noble
** Affects: vsftpd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2107406
Title:
vsftpd does not start at boot time when some options require IP or DNS
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