Cole Tuininga wrote:
A related question though. Can I mount an nfs drive from behind a nat box?
The short answer: Yes.
The longer answer: Depends.
If you're going through the NAT, depends a lot one which way you're going for how easy it is to set up. If you are going from inside a NAT'd LAN to the Internet to get to the NFS machine, then you probably don't need to do anything if youre NAT and firewall are already set up to automatically handle returns on request going out.
If you're going the other way, connecting to a NAT'd NFS server from a machine on the Internet, then you just need to make sure that NFS is redirected to the appropriate machine. You'll also want firewall rules on the NAT box to keep out any unwanted IPs on the NFS server. Even on a campus WAN, we had problems with NFS mounts going to one building in particular. It seems none of the machines could NFS mount anything outside that building, though every other 'Net protocol that we tried worked about as expected.
BTW, I would not recommened using NFS over the open Internet. NFS is a bit slow and a bit unreliable at times and connections are likely to time out when going very far over the open 'Net. You may want to look into Andrew's File System, which I've heard is more reliable than NFS.
Another, probably better, possibility is to mirror the updates.redhat.com on the machine behind a NAT and setup either the current daemon or the nrh-update daemon that was mentioned by Jeff MacDonald last night. Then, you can somehow point up2date on your machine outside the firewall at the daemon running behind your firewall. You will likely need to modify your NAT set up for that to work.
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