[SOLVED] Configuring Debian with FQDN, Dynamic IP, virtual hosts

mpyusko · 09-23-2013, 01:17 PM

I have a machine at home that I use for development, testing and a "club" site. I'm confused about how to get the hostname correct.

/etc/hostname contains solely "abacus"

"hostname -f" returns abacus

I want it to serve yusko.org and it does. The machine has a dynamic IP which is properly configured to update as necessary.

abacus.yusko.org should be the FQDN I would also like to setup a second domain using the same dynamic IP.

Code:

cat /etc/hosts
127.0.0.1       abacus  localhost.localdomain   localhost
192.168.1.3     abacus.yusko.org        abacus
192.168.1.1     river.yusko.org river

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Once I get this fixed I'm going to use ISPconfig3 to manage the server. So where am I going wrong? Thanks.

evo2 · 09-24-2013, 09:56 PM

Hi,

perhaps I'm missing something here, but why don't you change /etc/hostname to have abacus.yusko.org instead of just abacus?

Also normally I think you'd want to replace the first line of your /etc/hosts with the following two lines.

Code:

127.0.0.1 localhost
127.0.1.1 abacus.yusko.org abacus

I can't comment on the 192.168.1.X lines since I don't know your network setup.

Evo2.

zhjim · 09-25-2013, 02:09 AM

I would go even step further and remove the entry for abacus from 127.0.0.1 completely. Only use the 192.168... entry which is fine from my sight.

You also might want to try hostname --fqdn which should show you all of the fqdn the system can find configured. Right now it takes just the entry for the 127.0.0.1. You could also try to ping -c 1 -w 2 abacus to see to which ip the system resolves it.

mpyusko · 09-25-2013, 08:49 AM

It is my understand thet it is bad practice to put the FQDN in the /etc/hostname file. I thought it was only the machine name and then it was defined in /etc/hosts.

192.168.1.xxx is my local network IP range. My router is configured with ddns and port-forwards pertinent traffic to abacus. (192.168.1.3). This historically works perfectly, but I've been trying to install ISPconfig3 and now I'm running into issues. For instance, it used to serve several development sites perfectly, with only a simple change to /var/www symlink to point to what I wanted to work on. Since I installed ISPconfig3, the document roots all come up 403 - / forbidden. However, the Aliases like those for phpsysinfo, phpmyadmin, and webmail all work as they should. *:8080 comes up as no connection. The port is open, but it seems ISPconfig is not listening. Since the FQDN is not correct, I figured I would start there.

Thanks.

mpyusko · 09-25-2013, 09:59 AM

As it sits, no changes yet.....

Code:

root@abacus:/etc/init.d# hostname --fqdn
abacus
root@abacus:/etc/init.d#

Code:

root@abacus:/etc/init.d# ping -c 1 -w 2 abacus
PING abacus (127.0.0.1) 56(84) bytes of data.
64 bytes from abacus (127.0.0.1): icmp_seq=1 ttl=64 time=0.047 ms

--- abacus ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.047/0.047/0.047/0.000 ms
root@abacus:/etc/init.d# ping -c 1 -w 2 abacus.yusko.org
PING abacus.yusko.org (192.168.1.3) 56(84) bytes of data.
64 bytes from abacus.yusko.org (192.168.1.3): icmp_seq=1 ttl=64 time=0.125 ms

--- abacus.yusko.org ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.125/0.125/0.125/0.000 ms
root@abacus:/etc/init.d# ping -c 1 -w 2 yusko.org
PING yusko.org (67.247.65.204) 56(84) bytes of data.
64 bytes from cpe-67-247-65-204.rochester.res.rr.com (67.247.65.204): icmp_seq=1 ttl=64 time=2.73 ms

--- yusko.org ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 2.735/2.735/2.735/0.000 ms
root@abacus:/etc/init.d#

mpyusko · 09-25-2013, 10:22 AM

3rd post in a row.... LOL

I figured out i needed to add to the /etc/apache2/sites-enabled/000-ispconfig.conf file

Code:

<Directory /var/www>
       AllowOverride None
       Order Deny,Allow
        Allow from all       
</Directory>

to get the site to load, although it still won't connect on port 8080. Still digging.

mpyusko · 09-25-2013, 11:30 PM

Holy Fluffbucket!!!! That was a royal pain in the painfullness.

I FINALLY managed to get ISPconfig3 to fire up on port 8080. I had to add the following line to /etc/apache2/apache2.conf

Code:

IncludeOptional sites-enabled/*.vhost

then I went through both .vhost files and gleaned the -'s and +'s out of them. Now ISPconfig3 runs fine. I also found my answer to my question regarding virtual hosts sharing a dynamic IP here. I guess it isn't that different form a shared static IP.

zhjim · 09-27-2013, 04:13 AM

You are totaly right that /etc/hostname should only have the hostname and no fqdn. FQDNs come from /etc/hosts.

Code:

127.0.0.1   localhost.localdomain   localhost
192.168.1.3     abacus.yusko.org        abacus
192.168.1.1     river.yusko.org river

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

I'd go with this one.

REgarding your ping session this totaly makes sense by your hosts configuration in /etc/hosts.