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Hi all,
I have set up a Linux firewall box using SuSE Linux 6.2, kernel 2.2.10,
connected to the outside world via ADSL with ipchains. I have a machine
behind it that boots Linux, NT, or 98, as needed.
+----------------+ +--------------+
World <--> ADSL <--> | Linux firewall | <---> | PC w/Linux, |
+----------------+ | or NT, or 98 |
1.2.3.4, 192.168.0.254 +--------------+
(DHCP ISP assigned #) 192.168.0.5
( & internal assigned #)
My questions are:
1. what does the "/24" stand for in ip address 1.2.3.4/24? I have been
doing networks for years but have never seen this nomenclature.
2. When the internal PC is running Linux using 192.168.0.5, how do I
access it from work via telnet and ftp? As in, what address do I use?
"telnet whatipaddress?" and "ftp whatipaddress"?
3. Since my ISP is supposed to change the firewalls address every couple
of days, how do I keep up with that if they change it while I'm at work?
I have looked through FAQ's, etc., but can't find the answers to these
problems. Also, I did read that 2.2.10 is a bad kernel for ipchains,
but SuSE doesn't have anything newer on their web site. Further, I am
concerned that to update just the kernel, that drivers and the C
compiler may break if they aren't updated, too.
Thanks,
AI Nut
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