Re: before I could ping, now I can't
On Jul 23, 7:30 pm, Chris Davies <chris-use...@roaima.co.uk> wrote:
> Vwaju <l...@manhattanhandyman.com> wrote:
> > I am building an internet server (primarily to get some experience
> > with and knowledge of networking).
>
> If you're not familiar with networking then I would STRONGLY suggest that
> you stay well clear of putting your server directly on the Internet. Put
> it behind a good firewall and play there instead.
>
> > I installed [...] debian-40r3-i386-netinst.iso
> > I was able to ping both IP addresses and domain names. Then I
> > installed ssh and rebooted, and I couldn't ping *anything*.
> > jupiter:/home/admin# ping 216.227.214.3
> > connect: network is unreachable
>
> Your network hasn't come up.
>
> 1. What is in your /etc/network/interfaces file?
>
> 2. Assuming you're using ethernet to connect your server to the world,
> try "ifup eth0" and tell us what it says.
>
> Chris
>
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Thank you Andrei and Chris, for your help!
Here are the contents of etc/network/interfaces:
1 #This file describes the network interfaces available on your
system
2 #and how to activate them. For more information, see interfaces
(5)
3
4 #The loopback network interface
5 auto lo
6 iface lo inet loopback
7
8 #The primary network interface
9 #I commented out these lines, because I have static IP address
10 #allow-hotplug eth0
11 #iface eth0 inet dhcp
12
13 #I added the following lines (following Linux System Admin p. 13)
14 #netmask and network are guesses, because ISP RCN won't give info
15 auto-eth0
16 iface eth0 inet static
17 address 207.237.37.110
18 netmask 255.255.255.0
19 network 207.237.37.0
ifup eth0 reports:
/etc/network/interfaces:15: option with empty value
ifup: couldn't read interfaces file "/etc/network/interfaces"
Because RCN has refused to give me the network IP address, netmask,
and gateway, I expect trouble configuring the interface. Any advice
you have about this is welcome.
However, I thought I should first try to figure out how come I was
able to ping by hostname and by IP address, and now I can't
Thanks again for giving this your attention.
Best Regards,
Lou
New York City
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