Hello, i have an old cobalt cube on my network running a cutom 2.0.34 kernel, that i'm finding is going to be really hard to upgrade, it's not running debian, but everything else in here is :) so i'm only asking here because i've read the docs and tried everywhere else for help.
anyway, it has ipfwadm(note: ipmasqadm is not on it) tool for handling masqing and filtering, it's currently set up to masq everything from inside to outside, and nothing else. i have a server inside running backups, pulling data from web servers remotely, that is working great, however, i need to be able to ssh into that machine from the outside, there's only one real (external) ip that's attatched to the cube, can i, using ipfwadm, set it up to route any ssh requests to that machine on that ip to the interal backup server? i've tried everything, i'm just not that familiar with firewalling, if it's possible can someone send me a sample script with the appropriate rules to forward those packets? thanks in advance for you help.
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