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#1
Member
Registered: May 2006
Location: Orion–Cygnus Arm, MWG
Distribution: Slackware, Ubuntu
Posts: 249
Rep:
resolv.conf - how to reload?
I have slackware machines setup with static ips and I had to change the resolv.conf file.
#2
Senior Member
Registered: Jul 2005
Location: Round Rock, TX
Distribution: Slackware64 15.0 + Multilib
Posts: 2,159
coldbeer --
In my experience, editing resolv.conf has always seemed to be 'good enough' ...
YMMV ... ( and I am not sure what applications may be caching DNS )
-- kjh
This is my resolv.conf:
Code:
# cat /etc/resolv.conf
domain kjh.home
search kjh.home
nameserver 127.0.0.1
nameserver 8.8.8.8
nameserver 192.168.0.1
What server is resolving hostnames for me ( note the SERVER section at the end of the dig output ) ?
Code:
; <<>> DiG 9.10.5-P3 <<>> any google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6319
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 4, ADDITIONAL: 5
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;google.com. IN ANY
;; ANSWER SECTION:
google.com. 86281 IN CAA 0 issue "pki.goog"
<<snip>>
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jan 09 09:21:20 CST 2018
;; MSG SIZE rcvd: 458
Change my resolv.conf
Code:
# cat /etc/resolv.conf
domain kjh.home
search kjh.home
nameserver 8.8.8.8
nameserver 192.168.0.1
nameserver 127.0.0.1
Which SERVER is resolving host names now ?
Code:
# dig any google.com
<<snip>> - jump to the punch line ...
;; Query time: 36 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Jan 09 09:23:54 CST 2018
;; MSG SIZE rcvd: 384
1 members found this post helpful.
#3
Member
Registered: May 2006
Location: Orion–Cygnus Arm, MWG
Distribution: Slackware, Ubuntu
Posts: 249
Original Poster
Rep:
Looks like resolv.conf changes are effective immediately.
#4
Member
Registered: May 2006
Location: Orion–Cygnus Arm, MWG
Distribution: Slackware, Ubuntu
Posts: 249
Original Poster
Rep:
Quote:
Originally Posted by
kjhambrick
coldbeer --
In my experience, editing resolv.conf has always seemed to be 'good enough' ...
YMMV ... ( and I am not sure what applications may be caching DNS )
-- kjh
This is my resolv.conf:
Code:
# cat /etc/resolv.conf
domain kjh.home
search kjh.home
nameserver 127.0.0.1
nameserver 8.8.8.8
nameserver 192.168.0.1
What server is resolving hostnames for me ( note the SERVER section at the end of the dig output ) ?
Code:
; <<>> DiG 9.10.5-P3 <<>> any google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6319
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 4, ADDITIONAL: 5
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;google.com. IN ANY
;; ANSWER SECTION:
google.com. 86281 IN CAA 0 issue "pki.goog"
<<snip>>
;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jan 09 09:21:20 CST 2018
;; MSG SIZE rcvd: 458
Change my resolv.conf
Code:
# cat /etc/resolv.conf
domain kjh.home
search kjh.home
nameserver 8.8.8.8
nameserver 192.168.0.1
nameserver 127.0.0.1
Which SERVER is resolving host names now ?
Code:
# dig any google.com
<<snip>> - jump to the punch line ...
;; Query time: 36 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Jan 09 09:23:54 CST 2018
;; MSG SIZE rcvd: 384
I just did the same thing :-) Thanks!
#5
Member
Registered: Oct 2016
Distribution: FreeDOS 1.2
Posts: 309
Rep:
Changes to resolv.conf do eventually come into effect, but can take a couple of minutes to "stick," IME. I wonder if there's a way of "forcing" the issue.
#6
LQ Addict
Registered: Nov 2008
Location: Paris, France
Distribution: Slint64-15.0
Posts: 11,062
Rep:
Quote:
Originally Posted by
Fat_Elvis
By the way, NetworkManager, if you are using it, will overwrite changes to resolv.conf.
Which can be prevented if the file system allows it with:
Code:
chattr -V +i /etc/resolv.conf
I do that because my web hoster's name servers are sometimes slow so I prefer to use public ones.
Last edited by Didier Spaier; 01-14-2018 at 03:04 AM .
3 members found this post helpful.
#7
Member
Registered: Oct 2016
Distribution: FreeDOS 1.2
Posts: 309
Rep:
Quote:
Originally Posted by
Didier Spaier
Which can be prevented if the file system allows it with:
Code:
chattr -V +i /etc/resolv.conf
I do that because my web hoster's name servers are sometimes slow so I prefer to use public ones.
Good info, thanks! I should get around to learning how to set up wi-fi manually one of these days.
Last edited by Fat_Elvis; 01-15-2018 at 10:26 AM .
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