It seems tftpd-hpa interprets option --address ::69 to mean that only listen on
IPv6:
1. By default (with TFTP_ADDRESS=[::]:69) it is started as
/usr/sbin/in.tftpd --listen --user tftp --address [::]:69 --secure
--create /srv/tftp
2. netstat (command sudo netstat -anutp | grep '[:]69') shows:
udp6 0 0 :::69 :::*
10681/in.tftpd
I do not know and I am not interested to check the source code if there
is way to explicitly tell tftpd-hpa to listen on all interfaces, both
IPv4 and IPv6, but if you just omit the --address option, tftpd-hpa -
per netstat output - listens on all interfaces both IPv4 and IPv6; when
I start tftp-hpa as /usr/sbin/in.tftpd --listen --user tftp --secure
--create /srv/tftp then netstat shows
udp0 0 0.0.0.0:69 0.0.0.0:*
24607/in.tftpd
udp6 0 0 :::69 :::*
24607/in.tftpd
I accomplished this by hacking /etc/init.d/tftpd-hpa as follows:
diff --git a/init.d/tftpd-hpa b/init.d/tftpd-hpa
index 115ca4e..a4a5b60 100755
--- a/init.d/tftpd-hpa
+++ b/init.d/tftpd-hpa
@@ -52,9 +52,15 @@ do_start()
fi
done
+ if [ $TFTP_ADDRESS = [::]:69 ]; then# all interfaces
+ start-stop-daemon --start --quiet --oknodo --exec $DAEMON -- \
+--listen --user $TFTP_USERNAME \
+ $TFTP_OPTIONS $TFTP_DIRECTORY
+ else
start-stop-daemon --start --quiet --oknodo --exec $DAEMON -- \
--listen --user $TFTP_USERNAME --address $TFTP_ADDRESS \
$TFTP_OPTIONS $TFTP_DIRECTORY
+ fi
}
do_stop ()
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Server Team, which is subscribed to tftp-hpa in Ubuntu.
https://bugs.launchpad.net/bugs/1448500
Title:
tftp-hpa doesn't accept IPv4 connections
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https://bugs.launchpad.net/ubuntu/+source/tftp-hpa/+bug/1448500/+subscriptions
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