Difference: DebianNetworking (1 vs. 3)

Revision 328 Oct 2014 - TobyCabot

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Multiple IP's on one ethernet port

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  For more info see http://www.tldp.org/HOWTO/mini/IP-Alias/index.html
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-- TobyCabot - 05 Jun 2001 - 20 Jun 2003
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/etc/hostname: use short name on Debian, fqdn on centos: http://serverfault.com/questions/331936/setting-the-hostname-fqdn-or-short-name

Tests After Setting Up a New Box

$ hostname
$ hostname --fqdn
$ dnsdomainname
$ python -c "import socket; print socket.gethostname()"
$ python -c "import socket; print socket.gethostbyaddr('<output from previous command>')"

If these aren't what's expected the problem is probably in either /etc/hostname or /etc/hosts.

Revision 220 Jun 2003 - TobyCabot

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Network configuration in /etc/network/interfaces .
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Multiple IP's on one ethernet port

  Multi-home hosts are possible, make sure that the kernel has "IP: aliasing support" built in. It appears as if you need at least one device named, for example, ethX. If you define, say, an ethX:0 and and ethX:1 then ifconfig won't show them, but if one of them is ethX then both show up OK.
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Network configuration in /etc/network/interfaces:

iface eth0:1 inet static
		  address 192.168.1.50
		  netmask 255.255.255.0
 For some reason pump doesn't like the :0 aliases so if you're using dhcp then it has to be on ethX.
Changed:
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-- TobyCabot - 05 Jun 2001
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For more info see http://www.tldp.org/HOWTO/mini/IP-Alias/index.html

-- TobyCabot - 05 Jun 2001 - 20 Jun 2003

Revision 105 Jun 2001 - TobyCabot

Line: 1 to 1
Added:
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(other DebianTips)

Network configuration in /etc/network/interfaces .

Multi-home hosts are possible, make sure that the kernel has "IP: aliasing support" built in. It appears as if you need at least one device named, for example, ethX. If you define, say, an ethX:0 and and ethX:1 then ifconfig won't show them, but if one of them is ethX then both show up OK.

For some reason pump doesn't like the :0 aliases so if you're using dhcp then it has to be on ethX.

-- TobyCabot - 05 Jun 2001

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