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Hello Peter,
the point is when I start the named daemon it has only the real Ip addresses
and so it only listens to these addresses. I made a nmap portscan to show the
difference:
Interesting ports on (Real IP Address):
(The 1594 ports scanned but not shown below are in state: closed)
Port State Service
22/tcp open ssh
53/tcp open domain
80/tcp open http
111/tcp open sunrpc
139/tcp open netbios-ssn
443/tcp open https
445/tcp open microsoft-ds
Interesting ports on (virtual IP):
(The 1595 ports scanned but not shown below are in state: closed)
Port State Service
22/tcp open ssh
80/tcp open http
111/tcp open sunrpc
139/tcp open netbios-ssn
443/tcp open https
445/tcp open microsoft-ds
I have to restart the named daemon after the virtual IP address has been
assigned that named binds to the virtual address. It listens on every address
that is up when I start the daemon and not on those that are up after the start
of named.
Is there a chance to put the command "named restart" after the aquiration of
the virtual address?
Thank you
Date: Fri, 9 Apr 2004 09:00:40 -0700
From: Peter Mueller <pmueller@xxxxxxxxxxxx>
Subject: RE: DNS Server
To: "'thomas.kaiblinger@xxxxxxxxx'" <thomas.kaiblinger@xxxxxxxxx>,
<lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Message-ID:
<37328159548B4242A34141B1A69CDB73031BB273@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="ISO-8859-1"
> I want to run a DNS Server on a LVS Cluster. How can I tell named to
> restart after the virtual IP Addresses are aquired and ready to use?
> When I start named the daemon does only listen on the real IP
> Addresses.
If I understand you correctly, you are looking to have named listen on
0.0.0.0/53. This should be default behavior in redhat via /etc/named.conf.
If it's not default you need to edit that file and restart named.conf.
>From man named.conf:
ip_addr
An IP address in with exactly four elements in dotted-decimal nota
tion.
ip_port
An IP port number. number is limited to 0 through 65535, with values
below 1024 typically restricted to root-owned processes. In some
cases an asterisk (``*'') character can be used as a placeholder to
select a random high-numbered port.
ip_prefix
An IP network specified in dotted-decimal form, followed by ``/''
and
then the number of bits in the netmask. E.g. 127/8 is the network
127.0.0.0 with netmask 255.0.0.0. 1.2.3.0/28 is network 1.2.3.0 with
netmask 255.255.255.240.
---
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.656 / Virus Database: 421 - Release Date: 4/9/2004
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