linux network question

[Belwarrior]

note i did not set up the pcs and i do not have much experience in linux.. i can use it happily though but not yet comfortable enough to know where are the related conf files when something doesnt work..

pc A running redhat7.3 is now a webserver and is working fine and without any problems.. we have another pc, pc B running RH7.3 as well is to be its backup so that in case of anything happened to A, B can be the webserver..
so far B can received files and can comunicate with A and can see other pcs in the same network,..(137.a.b.c) however B cant be accessed outside of this network.. and we do have other pcs on (172.a.b.c) which cant access B..but can access A.

I need to make B available to every network as A is currently (which it needs to be if B is going to take over as a webserver).. A & B conf files are identical to each other.. i might have missed a few..

What files need to be edited to allow a system to be available to everyone?
B cant ping any system outside of network.
B cant be pinged by the other systems

any ideas, suggestions?

[spadnos]

You probably need to set a default route.

Something like this:

route add default 172.1.1.1 gw

You need to find out what the gateway address is, of course.

You may want to man route to make sure the syntax is correct - I don't have access to a Linux command prompt at the moment.

- Steve

edit: typo

[Belwarrior]

thanks!

managed to get it to work.. changing the gateway did it..