Unable to add forward map from client.db.net.db.net
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Unable to add forward map from client.db.net.db.net
again i have problem of DDNS.
hi to all, I've centos 7.5 as server and centos 6.10 as client in VMware/winodws10. I am comnfiguring DDNS on server. everythng is ok except there is a problem of " centos6client.db.net.db.net" <-- why it is double "db.net" ( db.net is mine doamin name).
/var/log/messages:-
-------------------
Code:
Jan 7 19:17:12 server75 dhcpd: DHCPREQUEST for 192.168.30.10 from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 19:17:12 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 19:17:24 server75 dhcpd: Unable to add forward map from centos6client.db.net.db.net to 192.168.30.10: timed out
output of dhcpd -cf /etc/dhcp/dhcpd.conf :-
-------------------------------------------
Code:
[root@server75 rahul]# dhcpd -cf /etc/dhcp/dhcpd.conf
Internet Systems Consortium DHCP Server 4.2.5
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file
Wrote 1 leases to leases file.
No subnet declaration for virbr0 (192.168.122.1).
** Ignoring requests on virbr0. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface virbr0 is attached. **
Listening on LPF/ens33/00:0c:29:8c:f7:d2/192.168.30.0/24
Sending on LPF/ens33/00:0c:29:8c:f7:d2/192.168.30.0/24
Sending on Socket/fallback/fallback-net
/var/log/message: -
-------------------
Code:
Jan 7 18:27:06 server75 named[5888]: command channel listening on 127.0.0.1#953
Jan 7 18:27:06 server75 named[5888]: managed-keys-zone: journal file is out of date: removing journal file
Jan 7 18:27:06 server75 named[5888]: managed-keys-zone: loaded serial 3
Jan 7 18:27:06 server75 named[5888]: zone 0.in-addr.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone db.net/IN: loaded serial 2019120906
Jan 7 18:27:06 server75 named[5888]: zone localhost.localdomain/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone localhost/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 60.168.192.in-addr.arpa/IN: loaded serial 2019120906
Jan 7 18:27:06 server75 named[5888]: all zones loaded
Jan 7 18:27:06 server75 named[5888]: running
Jan 7 18:27:06 server75 named[5888]: zone db.net/IN: sending notifies (serial 2019120906)
Jan 7 18:27:06 server75 named[5888]: zone 60.168.192.in-addr.arpa/IN: sending notifies (serial 2019120906)
Jan 7 18:27:06 server75 systemd: Started Berkeley Internet Name Domain (DNS).
Jan 7 18:27:08 server75 dhcpd: DHCPDISCOVER from 00:0c:29:76:ac:8d via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPOFFER on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPREQUEST for 192.168.30.10 (192.168.30.1) from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:14 server75 dhcpd: DHCPREQUEST for 192.168.30.10 from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:14 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:26 server75 dhcpd: Unable to add forward map from centos6client.db.net.db.net to 192.168.30.10: timed out
again i have problem of DDNS.
hi to all, I've centos 7.5 as server and centos 6.10 as client in VMware/winodws10. I am comnfiguring DDNS on server. everythng is ok except there is a problem of " centos6client.db.net.db.net" <-- why it is double "db.net" ( db.net is mine doamin name).
/var/log/messages:-
-------------------
Code:
Jan 7 19:17:12 server75 dhcpd: DHCPREQUEST for 192.168.30.10 from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 19:17:12 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 19:17:24 server75 dhcpd: Unable to add forward map from centos6client.db.net.db.net to 192.168.30.10: timed out
output of dhcpd -cf /etc/dhcp/dhcpd.conf :-
-------------------------------------------
Code:
[root@server75 rahul]# dhcpd -cf /etc/dhcp/dhcpd.conf
Internet Systems Consortium DHCP Server 4.2.5
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file
Wrote 1 leases to leases file.
No subnet declaration for virbr0 (192.168.122.1).
** Ignoring requests on virbr0. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface virbr0 is attached. **
Listening on LPF/ens33/00:0c:29:8c:f7:d2/192.168.30.0/24
Sending on LPF/ens33/00:0c:29:8c:f7:d2/192.168.30.0/24
Sending on Socket/fallback/fallback-net
/var/log/message: -
-------------------
Code:
Jan 7 18:27:06 server75 named[5888]: command channel listening on 127.0.0.1#953
Jan 7 18:27:06 server75 named[5888]: managed-keys-zone: journal file is out of date: removing journal file
Jan 7 18:27:06 server75 named[5888]: managed-keys-zone: loaded serial 3
Jan 7 18:27:06 server75 named[5888]: zone 0.in-addr.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone db.net/IN: loaded serial 2019120906
Jan 7 18:27:06 server75 named[5888]: zone localhost.localdomain/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone localhost/IN: loaded serial 0
Jan 7 18:27:06 server75 named[5888]: zone 60.168.192.in-addr.arpa/IN: loaded serial 2019120906
Jan 7 18:27:06 server75 named[5888]: all zones loaded
Jan 7 18:27:06 server75 named[5888]: running
Jan 7 18:27:06 server75 named[5888]: zone db.net/IN: sending notifies (serial 2019120906)
Jan 7 18:27:06 server75 named[5888]: zone 60.168.192.in-addr.arpa/IN: sending notifies (serial 2019120906)
Jan 7 18:27:06 server75 systemd: Started Berkeley Internet Name Domain (DNS).
Jan 7 18:27:08 server75 dhcpd: DHCPDISCOVER from 00:0c:29:76:ac:8d via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPOFFER on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPREQUEST for 192.168.30.10 (192.168.30.1) from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:09 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:14 server75 dhcpd: DHCPREQUEST for 192.168.30.10 from 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:14 server75 dhcpd: DHCPACK on 192.168.30.10 to 00:0c:29:76:ac:8d (centos6client.db.net) via ens33
Jan 7 18:27:26 server75 dhcpd: Unable to add forward map from centos6client.db.net.db.net to 192.168.30.10: timed out
You've rarely followed up on ANY of your other DNS threads over the past year, so it's hard to know why we should continue to try to help you.
Have you read the man page on resolv.conf??? Pay particular attention to the search-list items on that, because that is normal, documented behavior. If the resolver is not able to resolve a name, it'll try to resolve it by appending the domains in your search directive to the original query. Try terminating the DNS/domain names with a ".", and apply what you've been told/advised over the past year.
very very sorry Mr. TB0ne. Actually most of the time, I freshly installed System again after asking questions since waiting for 2 or more days. So most of the time problems gone and some times not. Very sorry again Me. TB0ne. Please help me for above issue.
very very sorry Mr. TB0ne. Actually most of the time, I freshly installed System again after asking questions since waiting for 2 or more days. So most of the time problems gone and some times not. Very sorry again Me. TB0ne. Please help me for above issue.
Again: you rarely follow up in any of your other threads, so why should we continue to try to help you?? And you didn't come back here to post until NINE DAYS later....please note that we are not tech-support, so two days (or more) between responses is just fine. If you need quicker assistance, I'd suggest you pay for support from someone.
And I find it VERY hard to believe that you re-install your ENTIRE SYSTEM, to 'resolve' a single DNS issue....or that this re-installation somehow solves different problems each time you do it, or that you'd take down an Oracle system each time to do this. Further, you have been given suggestions in the first reply; did you read and understand them? You have been given hints and advice in your OTHER threads regarding DNS...have you read and understood THEM? If you aren't going to apply what you're told, and think about what you're doing and learn, there isn't much we can do for you.
sorry very very sorry my sincere apologies, actually i have dns and servers for educational purposes, so i have backups of servers when i not found answers within 3 - 4 days i replace servers with back up this takes hardly 1 hour. backup is not problematic.
sorry very very sorry my sincere apologies, actually i have dns and servers for educational purposes, so i have backups of servers when i not found answers within 3 - 4 days i replace servers with back up this takes hardly 1 hour. backup is not problematic.
Not 'problematic', but not a good idea, since (as you're finding out), you're not actually **LEARNING** why things don't work. You aren't getting any troubleshooting skills, not knowing how to diagnose a problem and fix it.
Again: You rarely follow up in your threads, and have said you just reload after 3-4 days....except we had to wait NINE DAYS before you came back. You were given the solution in post #2. Whether you read it, understand it, or try it is up to you.
I am getting your points, so please help me on those problems.
You don't apparently understand what you're being told.
**AGAIN** YOUR QUESTION WAS ANSWERED IN POST #2**
Go back, re-read it. If you don't understand the answer, go back to the SEVERAL other DNS related questions you've asked, think about them, and APPLY WHAT YOU WERE TOLD. We are happy to HELP you, but at some point you, personally, are going to have to learn and do on your own. You have been here for **TEN YEARS** now.
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