Package: tftpd-hpa
Version: 5.2+20150808-1+b1
Severity: important
Dear Maintainer,
On a fresh install of tftpd I discovered it was not serving files
(timeout from the client end). Changing the address sessing in
/etc/default/tftpd-hpa from "TCP_ADDRESS=0.0.0.0:69" to "TCP_ADDRESS=:69"
(and systemctrl restart tftpd-hpa) started it working.
Netstat reports in.tftpd listening on '0.0.0.0:69' in both cases.
sustemd (systemctl status tftpd-hpa) confirms that the command run to
start the service has changed from '--address 0.0.0.0:69' to '--address
:69'.
I tried explicitly setting the ip to one interface ('192.168.0.1:69') in
/etc/default/tftpd-hpa and it did start working on that one address -
unfortunately it stopped working on loopback (127.0.0.1) and I need to
to listen on other networks, so this isn't a solution for me.
Why changing '0.0.0.0:69' to just ':69' affects the behaviour of the
service is something I do not understand, but out-of-the-box this
package appears broken.
This is all on an IPv4 set of addresses, as explained, so it does not
appear to be the issue that 0.0.0.0:69 isn't going to match IPv6.
The service starts and no errors are logged. With tcpdump I can see the
REQ coming into the system, when the listen address is configured to
'0.0.0.0:69' but no response. With it configured to ':69' it seems to
function perfectly.
I tried removing the TCP_ADDRESS option entirely (both by commenting and
setting it to a blank string) but the service failed to start when I did
that (systemctl (re)?start tftpd-hpa fails with an error).
My system is fully up to date.
Regards,
Laurence
-- System Information:
Debian Release: 9.8
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-8-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages tftpd-hpa depends on:
ii adduser 3.115
ii debconf [debconf-2.0] 1.5.61
ii libc6 2.24-11+deb9u4
ii libwrap0 7.6.q-26
tftpd-hpa recommends no packages.
Versions of packages tftpd-hpa suggests:
ii pxelinux 3:6.03+dfsg-14.1+deb9u1
-- debconf information:
tftpd-hpa/options: --secure
tftpd-hpa/address: 0.0.0.0:69
tftpd-hpa/directory: /srv/tftp
tftpd-hpa/username: tftp
