DNS cannot be confirmed as this host's IP address

[hm2k]

Network check failed -- IP address 'xxx.xxx.xxx.xxx' associated with host name 'xxx.example.com' in DNS cannot be confirmed as this host's IP address.

Judging by this response I assume that you are required to have rdns on the host name that you use.

I do realise that according to the RFC you are meant to have RDNS on your mail server, however in most cases when interfacing with other mail servers, its not a requirement.

I therefore assume that the only solution to this problem is to use a machine that has an IP address with RDNS assigned or get RDNS assigned to that IP.

[ScalixSupport]

Hi,

This is clearly described in the installation guide.

Cheers,
Yuri

[florian]

Reverse DNS is required for Mailservers by both RFC and the Scalix installer.

However, for an isolated system, you can just setup bidirectional mapping in your local /etc/hosts file instead.

Cheers,
Florian.

[aireworth]

florian

I am also trying to set up an isolated system.
What should that "hosts" file entries look like? I have

127.0.0.1 localhost.localdomain localhost
192.168.0.101 scmail.aireworth.cwt scmail

Scalix now installs, apache is running, but I get "sever not found" in firefox if I specify either of the names or either of the IP addresses above.

My host.conf file says
hosts, bind

Many thanks

Colin

[florian]

Hi,

are you talking about running firefox right on this Linux machine or on your desktop PC?

Thx,
Florian.

[aireworth]

On the linux machine. I was following the steps in the installation guide about confirming scalix was properly installed.

Colin

[florian]

ok, so please try the following:

1. post the output if ifconfig command.

2. try ping 192.168.0.101 and ping scmail.aireworth.cwt

3. try lsof -i :80

4. try telnet scmail.aireworth.cwt 80

5. in firefox, do you have any proxy settings activated?

Sounds lilke some network configuration issue. are you running a firewall package or SELinux in the OS?

Thx,
Florian.

192.168.0.101 scmail.aireworth.cwt scmail

[aireworth]

Hello Florian

My output from you suggestions is:

[root@scmail ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:30:BD:19:33:5B
inet addr:192.168.0.101 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::230:bdff:fe19:335b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:229 errors:0 dropped:0 overruns:0 frame:0
TX packets:209 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:24340 (23.7 KiB) TX bytes:17441 (17.0 KiB)
Interrupt:11 Base address:0xc800

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:67 errors:0 dropped:0 overruns:0 frame:0
TX packets:67 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4728 (4.6 KiB) TX bytes:4728 (4.6 KiB)

[root@scmail ~]#

[root@scmail ~]# ping 192.168.0.101
PING 192.168.0.101 (192.168.0.101) 56(84) bytes of data.
64 bytes from 192.168.0.101: icmp_seq=0 ttl=64 time=0.070 ms
64 bytes from 192.168.0.101: icmp_seq=1 ttl=64 time=0.058 ms
64 bytes from 192.168.0.101: icmp_seq=2 ttl=64 time=0.060 ms

[2]+ Stopped ping 192.168.0.101

[root@scmail ~]# ping scmail.aireworth.cwt
PING scmail.aireworth.cwt (192.168.0.101) 56(84) bytes of data.
64 bytes from scmail.aireworth.cwt (192.168.0.101): icmp_seq=0 ttl=64 time=0.057 ms
64 bytes from scmail.aireworth.cwt (192.168.0.101): icmp_seq=1 ttl=64 time=0.061 ms
64 bytes from scmail.aireworth.cwt (192.168.0.101): icmp_seq=2 ttl=64 time=0.060 ms
64 bytes from scmail.aireworth.cwt (192.168.0.101): icmp_seq=3 ttl=64 time=0.060 ms

[3]+ Stopped ping scmail.aireworth.cwt


[root@scmail ~]# lsof -i:80
[root@scmail ~]#

[root@scmail ~]# telnet scmail.aireworth.cwt 80
Trying 192.168.0.101...
telnet: connect to address 192.168.0.101: Connection refused
telnet: Unable to connect to remote host: Connection refused
[root@scmail ~]#

My settings in firefox under preferences>connection settings are - Direct connection to internet.
It would appear to be a linux problem, as I did a clean reinstall after messing with DNS and getting into a right mess. These resullts are from before re installing Scalix again.
But I still ahve the same results in Firefox

Its <cough> Centos 4.3 <cough> I'm afraid...

Many thanks

Colin

[aireworth]

Oh and no firewall and SElinux disabled on install

Colin

[aireworth]

Florian

But hey, its fixed! It appears it wasn't working after the clean install because I hadn't yet installed Apache. Doh!!

Sorry to trouble you, but its nice to get it working.

Many thanks (and enjoy Linux World)

Regards

Colin