Aaron Gray wrote:
> I am getting timeouts on TFTP on F15,
>
> Aaron
You should check at server side:
1) if tftp service is enabled:
# chkconfig --list tftp
Note: This output shows SysV services only and does not include native
systemd services. SysV configuration data might be overridden by native
systemd configuration.
tftp on
2) if xinetd daemon is running (also "service xinetd status"):
# systemctl status xinetd.service
xinetd.service - LSB: start and stop xinetd
Loaded: loaded (/etc/rc.d/init.d/xinetd)
Active: active (running) since Wed, 21 Sep 2011 04:46:34 +0200; 2 weeks and 5 days ago
Main PID: 1908 (xinetd)
CGroup: name=systemd:/system/xinetd.service
└ 1908 xinetd -stayalive -pidfile /var/run/xinetd.pid
3) /etc/hosts.allow (if You use hosts.allow/hosts.deny) should contain:
...
# we allow access from 192.168.1.0/24 :
in.tftpd: 192.168.1.0/255.255.255.0
...
4) if You use firewall (iptables), You should load nf_conntrack_tftp module,
for tracking ephemeral ports. That means /etc/sysconfig/iptables-config should
contain line as:
...
IPTABLES_MODULES="nf_conntrack_tftp"
...
(other module is for NATting tftp connection)
5) /var/log/messages should contain entries as:
Oct 10 20:28:32 ns xinetd[1908]: START: tftp pid=5315 from=192.168.1.22
Oct 10 20:28:42 ns xinetd[1908]: EXIT: tftp status=0 pid=5315 duration=10(sec)
6) tcpdump on relevant interface (here eth0) should display traffic,
at minimal incomming packet:
# tcpdump -i eth0 -l -nn udp port 69
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
20:43:13.612200 IP 192.168.1.22.58949 > 192.168.1.254.69: 17 RRQ "b.log" netascii
Best, Franta
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