Well, if your network infrasctructure can handle this, then it's
not a problem. The IP aliasing goes also with different subnets
(just tried :)
Eduard (Dich)
--- Boris Kantwerk
... i think thats not possible, because the old and the new IP are in different subnets.
Greetings, Boris.
-----Ursprungliche Nachricht----- Von: Eduard Avetisyan [mailto:dich_ed@yahoo.com] Gesendet: Freitag, 16. November 2001 15:55 An: Boris Kantwerk Cc: suse-security@suse.com Betreff: Re: [suse-security] Port-Forwarding
Hi Boris!
What you can do is IP-aliasing, when your ethernet card listens for both IP addresses. The kernel should support it (standart SuSE kernels do), afterwards you just do ifconfig eth0:0 and then configure your new ip on the eth0:0 card as if it were another ethernet adapter. Works pretty nice.
Check out IP-Aliasing HOWTO for more details (comes with every recent SuSE distribution)...
Good luck! :) Eduard (Dich)
--- Boris Kantwerk
wrote: Hi!
My problem is, that my server will get another IP. Because my ISP cannot (or will not) change the TTL in the DNS and I don't like to wait 2 days until the server will work again. My idea is to install a second machine with the old IP and forward all incoming requests to the new IP, until all DNSs have the new IP.
How can I forward all incoming requests for ports 21, 22, 25, 80, 110, 443, 995, 3306 to another server on the new SuSE 7.3-Box?
Will there be problems with virtual hosting (apache) or other services?
Boris.
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