We ran into this bit of fun while setting up a NIS domain for testing in the lab today:
rob@rob-kubuntu3:~$ ypcat -d nisdom -h rhel5-64-2 passwd.byname
No such map passwd.byname. Reason: No such map in server's domain
It turns out this was a problem with the /var/yp/securenets file, but I’m still not sure what is wrong. The man page for ypserv shows:
A sample securenets file might look like this:
# allow connections from local host — necessary
host 127.0.0.1
# same as 255.255.255.255 127.0.0.1
#
# allow connections from any host
# on the 131.234.223.0 network
255.255.255.0 131.234.223.0
So we set up our securenets to look like this:
host 127.0.0.1
255.255.255.0 10.10.10.0
And tried to connect to the server:
rob@rob-kubuntu3:~$ ip addr show dev wlan0 |grep "inet "
inet 10.10.10.210/24 brd 10.10.10.255 scope global wlan0
rob@rob-kubuntu3:~$ ypcat -d nisdom -h rhel5-64-2 passwd.byname
No such map passwd.byname. Reason: No such map in server's domain
rob@rob-kubuntu3:~$ ping -c1 rhel5-64-2
PING rhel5-64-2 (10.10.10.213) 56(84) bytes of data.
64 bytes from rhel5-64-2 (10.10.10.213): icmp_req=1 ttl=64 time=0.823 ms
--- rhel5-64-2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.823/0.823/0.823/0.000 ms
Removing the /var/yp/securenets file allowed us access, so it wasn’t firewall or rpc or portmap issues, to the best I can determine. Adding “host 10.10.10.210” also worked and allowed the client access. So what’s wrong with the format / man page?