dhcp of omapi should listen to localhost

barad · 07-04-2016, 08:37 AM

Hi,

my linux box is enable with omshell of dhcp by having entry in dhcpd.conf
say,
omapi-port 5601;

And after isc-dhcp-server restart, it started to listen for omapi on 0.0.0.0:5601.

But i want dhcp to listen on 127.0.0.1:5601.

Can anyone please help me out??

Thanks in advance.

Jjanel · 07-08-2016, 03:08 AM

Does omapi fail? (Does it NOT work?) What does it say?
http://www.howtogeek.com/225487/what....1-and-0.0.0.0
EDIT: ooops, I'm guessing you mean for it to NOT listen on/to INTERNET:
https://kb.isc.org/article/AA-01355/...nnections.html
Maybe the only way is to 'fix' the source code... Idk, sorry...

barad · 07-10-2016, 05:46 AM

Thanks.

Yeah source code is designed in that way. made it possible by modifying the source code.

Jjanel · 07-10-2016, 06:01 AM

You edited the source? COOL (GREAT)! Might you post the diff/change[?] p.s. feel free to mark this thread 'solved'.

Dmitryc · 10-22-2018, 09:44 AM

Quote:

Originally Posted by Jjanel

You edited the source? COOL (GREAT)! Might you post the diff/change[?] p.s. feel free to mark this thread 'solved'.

For those still interested in modifying the source code - I've implemented such a solution, (can post related diff-files attached, not a standard patch though).
Because of company's decision, this solution hasn't have made its way to production. It looks like we could achieve similar effect with the following iptables rules:

Code:

$ iptables -A INPUT -p tcp --dport 7911 -s 127.0.0.0/8 -j ACCEPT
$ iptables -A INPUT -p tcp --dport 7911 -j REJECT

HTH