TFTP is not working.
Question: Customer can no longer tftp to/from his production
machine after ipl.
Answer: Nobody account had expired. That can be fixed by
smitty users, change/show user nobody and setting the
expiration date to 0. If there isn't a nobody account
then add the user with a positive user id and change the
userid to a negative userid by change/show user and
setting the userid value to -2.
/etc/tftpaccess.ctl file (if it exists) should be owned
by root with permissions of 644. There is more
information on the tftpaccess.ctl file in InfoExplorer.
How to log tftp error messages:
Modify the tftpd daemon so that it logs errors in
tftp dgram udp wait nobody /etc/tftpd tftpd -n -i -v
Import the changes to the ODM:
Stop and Start inetd with debugging option on:
stopsrc -s inetd
startsrc -s inetd -a "-d"
Modify the /etc/syslogd.conf file:
Stop and Restart syslog logging:
stopsrc -s syslogd
startsrc -s syslogd
Verify the file permissions for tftp:
\# whereis tftp
tftp: /bin/tftp /usr/bin/tftp /usr/ucb/tftp
\# ls -l /bin/tftp
-r-sr-xr-x 1 root system 27715 May 20 12:45 /bin/tftp
\# ls -l /usr/bin/tftp
-r-sr-xr-x 1 root system 27715 May 20 12:45 /usr/bin/tftp
\# ls -l /usr/ucb/tftp
lrwxrwxrwx 1 root system 13 May 20 13:07 /usr/ucb/tftp -> /usr/bin/
Customer had modified their /etc/inittab file which
to not have a console. This was possibly the cause
of their problems. Once they reset /etc/inittab
Support Line: TFTP is not working. ITEM: L3185L
Dated: July 1994 Category: N/A
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