_(other DebianTips)_ ---+ 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. Network configuration in =/etc/network/interfaces=: <pre> iface eth0:1 inet static address 192.168.1.50 netmask 255.255.255.0 </pre> For some reason pump doesn't like the =:0= aliases so if you're using dhcp then it has to be on =ethX=. For more info see http://www.tldp.org/HOWTO/mini/IP-Alias/index.html =/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 <pre> $ hostname $ hostname --fqdn $ dnsdomainname $ python -c "import socket; print socket.gethostname()" $ python -c "import socket; print socket.gethostbyaddr('<output from previous command>')" </pre> If these aren't what's expected the problem is probably in either =/etc/hostname= or =/etc/hosts=.
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DebianNetworking
Topic revision: r3 - 28 Oct 2014 - TobyCabot
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