Changed IP address
list Rich Smrcina
Until DNS gets updated/propagated you can add 'testip' to the tests for that host. Jeffrey Chandler wrote:
Hello, I have changed an IP address on one of my servers which hobbit monitors. I have updated the bb-hosts file to reflect the new IP address of that host, but my hobbit server still pings the old IP address. If I use the bbtest-net --debug command and grep for the hostname, it says the following: 2007-03-01 16:45:55 Got DNS result for host server1.example.com <http://server1.example.com> : 192.168.1.100 <http://192.168.1.100> This is no longer the IP address for this host, and is not reflected that way in any of the DNS servers which the hobbit network server is using. Is there another configuration file that I need to modify as well? My Hobbit server is running on RedHat Enterprise Linux 3.0. Thanks, Jeff
-- Rich Smrcina VM Assist, Inc. Phone: XXX-XXX-XXXX Ans Service: XXX-XXX-XXXX user-61add9955ef9@xymon.invalid Catch the WAVV! http://www.wavv.org WAVV 2007 - Green Bay, WI - May 18-22, 2007
list Jeffrey Chandler
Hello, I have changed an IP address on one of my servers which hobbit monitors. I have updated the bb-hosts file to reflect the new IP address of that host, but my hobbit server still pings the old IP address. If I use the bbtest-net --debug command and grep for the hostname, it says the following: 2007-03-01 16:45:55 Got DNS result for host server1.example.com : 192.168.1.100 This is no longer the IP address for this host, and is not reflected that way in any of the DNS servers which the hobbit network server is using. Is there another configuration file that I need to modify as well? My Hobbit server is running on RedHat Enterprise Linux 3.0. Thanks, Jeff
list Jeffrey Chandler
Thanks. using the testip option worked. However, I am curious where within hobbit it is pulling the DNS information from. Each of the DNS servers in /etc/resolv.conf resolves the IP properly and they are authoritative for the domain. Is there a cache which Hobbit uses first? Jeff
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On 3/1/07, Rich Smrcina <user-cf452ff334e0@xymon.invalid> wrote:Until DNS gets updated/propagated you can add 'testip' to the tests for that host. Jeffrey Chandler wrote:Hello, I have changed an IP address on one of my servers which hobbit monitors. I have updated the bb-hosts file to reflect the new IP address of that host, but my hobbit server still pings the old IP address. If I use the bbtest-net --debug command and grep for the hostname, it says the following: 2007-03-01 16:45:55 Got DNS result for host server1.example.com <http://server1.example.com>; : 192.168.1.100 <http://192.168.1.100>; This is no longer the IP address for this host, and is not reflected that way in any of the DNS servers which the hobbit network server is using. Is there another configuration file that I need to modify as well? My Hobbit server is running on RedHat Enterprise Linux 3.0. Thanks, Jeff-- Rich Smrcina VM Assist, Inc. Phone: XXX-XXX-XXXX Ans Service: XXX-XXX-XXXX user-61add9955ef9@xymon.invalid Catch the WAVV! http://www.wavv.org WAVV 2007 - Green Bay, WI - May 18-22, 2007
list Greg L Hubbard
Most DNS resolvers cache entries themselves. The underlying operating system usually provides this service for all network users (meaning applications). When you run "nslookup" you are bypassing the cache. GLH
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From: Jeffrey Chandler [mailto:user-3bdabb0d5953@xymon.invalid]
Sent: Thursday, March 01, 2007 4:08 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] Changed IP address
Thanks. using the testip option worked. However, I am curious
where within hobbit it is pulling the DNS information from. Each of the
DNS servers in /etc/resolv.conf resolves the IP properly and they are
authoritative for the domain. Is there a cache which Hobbit uses first?
Jeff
On 3/1/07, Rich Smrcina <user-cf452ff334e0@xymon.invalid> wrote:
Until DNS gets updated/propagated you can add 'testip'
to the tests for
that host.
Jeffrey Chandler wrote:Hello, I have changed an IP address on one of my servers which hobbit monitors. I have updated the bb-hosts file to reflect the new IP address of that host, but my hobbit server still pings the old IP address. If I use the bbtest-net --debug command and grep for the hostname, it says the following: 2007-03-01 16:45:55 Got DNS result for host server1.example.com <http://server1.example.com > : 192.168.1.100
<http://192.168.1.100>;
This is no longer the IP address for this host, and is not reflected that way in any of the DNS servers which the hobbit network server is using. Is there another configuration file that I need to modify as well? My Hobbit server is running on RedHat Enterprise Linux
3.0.
Thanks, Jeff
-- Rich Smrcina VM Assist, Inc. Phone: XXX-XXX-XXXX Ans Service: XXX-XXX-XXXX user-61add9955ef9@xymon.invalid Catch the WAVV! http://www.wavv.org WAVV 2007 - Green Bay, WI - May 18-22, 2007
list Henrik Størner
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On Thu, Mar 01, 2007 at 04:51:35PM -0500, Jeffrey Chandler wrote:
2007-03-01 16:45:55 Got DNS result for host server1.example.com : 192.168.1.100 This is no longer the IP address for this host, and is not reflected that way in any of the DNS servers which the hobbit network server is using. Is there another configuration file that I need to modify as well?
Hobbit just performs a standard DNS lookup, using the DNS servers listed in your /etc/resolv.conf (or whatever file is used on your system - it's somewhat OS dependant). Hobbit doesn't cache DNS responses. It is a DNS server somewhere that is caching the old IP. Try doing a "nslookup server1.example.com" on the Hobbit server. Regards, Henrik