NIS and NFS and YP in Ubuntu Server 14.04
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There is no need to test NIS functions if the NIS server hasn't started yet. If the service can't start, you know that it isn't going to work. This is like telling us that the car isn't steering well right after demonstrating that it hasn't started yet.
So we must start by figuring out why it isn't starting and fix that. When something doesn't work, since it throws no useful error messages, we need to start by looking at the logs to see what it is telling us.
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My NIS Client Configuration Step by step process is given below if any error please inform
nano /etc/yp.conf GNU nano 2.2.6 File: /etc/yp.conf Modified # # yp.conf Configuration file for the ypbind process. You can define # NIS servers manually here if they can't be found by # broadcasting on the local net (which is the default). # # See the manual page of ypbind for the syntax of this file. # # IMPORTANT: For the "ypserver", use IP addresses, or make sure that # the host is in /etc/hosts. This file is only interpreted # once, and if DNS isn't reachable yet the ypserver cannot # be resolved and ypbind won't ever bind to the server. # ypserver ypserver.network.com domain test.com server shiva.test.com root@ubuntu:~# nano /etc/nsswitch.conf # /etc/nsswitch.conf # # Example configuration of GNU Name Service Switch functionality. # If you have the `glibc-doc-reference' and `info' packages installed, try: # `info libc "Name Service Switch"' for information about this file. passwd: compat nis group: compat nis shadow: compat nis hosts: files mdns4_minimal [NOTFOUND=return] dns nis networks: files protocols: db files services: db files ethers: db files rpc: db files root@ubuntu:~# nano /etc/pam.d/common-session GNU nano 2.2.6 File: /etc/pam.d/common-session # since the modules above will each just jump around session required pam_permit.so # The pam_umask module will set the umask according to the system default in # /etc/login.defs and user settings, solving the problem of different # umask settings with different shells, display managers, remote sessions etc. # See "man pam_umask". session optional pam_umask.so # and here are more per-package modules (the "Additional" block) session required pam_unix.so session optional pam_systemd.so # end of pam-auth-update config session optional pam_mkhomedir.so skel=/etc/skel umask=077 root@ubuntu:~# reboot oot@ubuntu:~# ypwhich ypwhich: Can't communicate with ypbind root@ubuntu:~# ypcat passwd No such map passwd.byname. Reason: Can't bind to server which serves this domain root@ubuntu:~# ypcat hosts No such map hosts.byname. Reason: Can't bind to server which serves this domain root@ubuntu:~# -
Client side output for digging domain name
shiva@ubuntu:~$ dig test.com any ; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> test.com any ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16217 ;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 2, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;test.com. IN ANY ;; ANSWER SECTION: test.com. 7200 IN SOA ns65.worldnic.com. namehost.worldnic.com. 115070707 10800 3600 604800 3600 test.com. 7200 IN TXT "google-site-verification=kW9t2V_S7WjOX57zq0tP8Ae_WJhRwUcZoqpdEkvuXJk" test.com. 7200 IN MX 10 mx.spamexperts.com. test.com. 7200 IN MX 20 fallbackmx.spamexperts.eu. test.com. 7200 IN MX 30 lastmx.spamexperts.net. test.com. 3600 IN A 69.172.200.235 test.com. 7200 IN NS ns66.worldnic.com. test.com. 7200 IN NS ns65.worldnic.com. ;; AUTHORITY SECTION: test.com. 7200 IN NS ns66.worldnic.com. test.com. 7200 IN NS ns65.worldnic.com. ;; ADDITIONAL SECTION: ns65.worldnic.com. 171249 IN A 207.204.40.133 ns66.worldnic.com. 171249 IN A 207.204.21.133 ;; Query time: 841 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Thu Jul 16 18:50:33 IST 2015 ;; MSG SIZE rcvd: 396 shiva@ubuntu:~$ -
I edited your posts for readability.
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You are getting way too deep when your errors are very shallow. Right now it looks like NIS isn't running yet:
oot@ubuntu:~# ypwhich ypwhich: Can't communicate with ypbind root@ubuntu:~# ypcat passwd No such map passwd.byname. Reason: Can't bind to server which serves this domainBefore you are doing all of this.... just look and see if NIS is running. Just this command on your NIS server:
netstat -tulpn -
Or query the NIS service and ask it if it is running.
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Have firewall ports been opened for RPCBIND and whatever else is needed?
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How to open ports for the NIS and NFS in iptables?
I have followed the below to link configure for the NIS configurattion now.https://help.ubuntu.com/community/SettingUpNISHowTo
But I was not able to open the ports I have given in the website
I have also installed the iptables-persistent in the ubuntu server but the default path to edit rules was not able to identify.
When I use the rules for the port I have opened means the error coming here is
Bad Argument"IP" -
@Lakshmana said:
How to open ports for the NIS and NFS in iptables?
Same way as the other times you opened ports in iptables. Just change the port numbers. For now, while you are trying to figure things out, just turn iptables off.
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@Lakshmana said:
When I use the rules for the port I have opened means the error coming here is
Bad Argument"IP"Instead of describing the issue in cases like this, supply the screen shot or a copy/paste of the commands that fail and the error. In almost all cases it's just a typo or missed argument. In every case we will ask you to do this. So instead of making us ask, just start by providing the information so we can assist more quickly.
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Configured Properly and now it is working
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What was wrong?
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I have not mentioned the server at /etc/hosts and ypbind does not happen because of this option the whole setup has issue.
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I am guessing that you do not have all of your servers listed in DNS and that might be causing the problem requiring /etc/hosts to have an entry?
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You can use IP addresses in your configuration files too, instead of hostnames if you are lacking DNS.
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OK.
