when i was configuring rip using Quagga Routing Suite on my ubuntu gateway server, everything was done i add all the neighbor network but i was unable to write the configuration,

router1# write
Can't backup old configuration file /etc/quagga/ripd.conf.sav.

i started troubleshooting and finally found that the was there was  no write  permissions for others on /etc/quagga directory in which ripc.conf file resides.

root@router1:~# ls -ld /etc/quagga/
drwxrwxr-x 2 quagga quaggavty 4096 Sep 15 11:09 /etc/quagga/

 Simply open another teminal and give the permission now hit write command once again.

root@router1:~# chmod -R 777  /etc/quagga/

Dont forget -R since all the files reside in quagga directory need write permission.

router1# write
Configuration saved to /etc/quagga/ripd.conf


gil...