How to change DNS?

11 réponses [Dernière contribution]
dread71
Hors ligne
A rejoint: 10/19/2016

I am trying to change my DNS to open NIC from comcast but I can not delete my old DNS. I can't figure this out. Can someone help?

lloydsmart

I am a member!

Hors ligne
A rejoint: 12/22/2012

DNS servers are listed in /etc/resolv.conf - but you can change them graphically by clicking on the 'network' icon in the taskbar, clicking on "Edit", clicking on your connection in the list, going to the 'IPv4 Settings' tab and entering the DNS server there.

dread71
Hors ligne
A rejoint: 10/19/2016

How do I delete a DNS I no longer want to use? (Comcast DNS is still there when i edited with the graphical method.) Thanks for the help.

dread71
Hors ligne
A rejoint: 10/19/2016

None of this works my router keeps overwriting my edits and changing my dns back to isp defaults and there is not option in my router that lets me change dns am i screwed?

icaroperseo
Hors ligne
A rejoint: 08/21/2014

You must make appropriate adjustments into /etc/resolv.conf using as a guide the following link:

https://wiki.archlinux.org/index.php/Resolv.conf

Once finished, do what is indicated here (as root):

https://wiki.archlinux.org/index.php/Resolv.conf#Write-protect_.2Fetc.2Fresolv.conf

You should have no problem with it!

Regards.

dread71
Hors ligne
A rejoint: 10/19/2016

I went into resolv.conf and edited it. Then I went into networkmanager.conf and added the line dns=none then I made resolv.conf write protected then I rebooted. it changed it back.

SuperTramp83

I am a translator!

Hors ligne
A rejoint: 10/31/2014

Or in the router settings.

Mangy Dog

I am a member!

I am a translator!

Hors ligne
A rejoint: 03/15/2015
Jodiendo
Hors ligne
A rejoint: 01/09/2013

Tramposo
A smart person will try to change the dns on the router settings but if the router is locked out on that option, then you have to change on your computer. In the other hand I use OpenNic to search for the closer geographic location https://servers.opennicproject.org/
example: for my world location I will use either Singapore, honk Kong or japan.
I will start pinging the dns from your location to study the latency then I will start using tracer to study how many hops from your computer to the final destination. For example if you ping with a latency of 57ms or 150ms is a very close. but if your latency is lower in 200 ms or higher then you are too far away. I always using opennic servers.

There is Ways to change your dns on your adsl. It works for me.

1- How to configure a PPPoE internet connection on a Debian box

Assuming your computer has a direct connection (with no router between it and the DSL modem), the configuration is pretty straightforward.
Here’s the tutorial for beginners:
Login and elevate your permissions to ‘super user':

su

Make sure the resolvconf package is installed:

apt-get install resolvconf

Create the directory /usr/etc/ppp:

mkdir -p /usr/etc/ppp

Open your favorite editor (I’m using vi/vim here, so some commands are specific to that editor, like ‘vi’ to use the editor and ‘ :wq’ to write and close. Edit; You may find the Nano editor easier to use), create a new file and enter as many OpenNIC nameserver IPs as you like in, your nearest ones are here.

vi /usr/etc/ppp/resolv.conf.opennic

Enter the following: (The IPs shown here are German, you would probably want the nearest servers to you).

nameserver 78.138.97.33
nameserver 178.63.26.172
nameserver 2a00:e10:1000:10:1586:0:33:53
rotate

Write and save the file

:wq

Note: The “rotate” option helps dividing the requests between the nameservers listed.
Create the following little script:

vi /etc/ppp/ip-up.d/zzz_opennic_resolvconf

#!/bin/sh
# some providers insist on the 'usepeerdns' option, hence
# we reinitialize the resolver to opennic servers after
# all is done. this hook script will be run automatically by
# pppd after it successfully established a connection.
set -e
# before we start: if anything went wrong with pppd, the $PPP...
# variables will not exist.
test -n "$PPP_IFACE" || exit 0
# Logging: use /var/log/ppp-ipupdown.log if it exists (then it is open
# for writing, see ../ip-up). Else use syslog:
blather () {
local whereto
if [ -e /var/log/ppp-ipupdown.log ]; then
whereto="echo $0: $@"
else
whereto="logger -i -t $0 $@"
fi
eval $whereto
}
SYSTEM_RCONF="/etc/ppp/resolv.conf"
# the file we just created:
LOCAL_RCONF="/usr/etc/ppp/resolv.conf.opennic"
test -f $SYSTEM_RCONF || { blather "$SYSTEM_RCONF does not exist. Exiting."; exit 0; }
test -f $LOCAL_RCONF || { blather "$LOCAL_RCONF does not exist. Exiting."; exit 0; }
cat $LOCAL_RCONF | /sbin/resolvconf -a $PPP_IFACE
cp $LOCAL_RCONF $SYSTEM_RCONF
blather "Resolver configured for OpenNIC namespace."

Write and save the file

:wq

Make the script executable

chmod 0755 /etc/ppp/ip-up.d/zzz_opennic_resolvconf

Restart your network:

/etc/init.d/networking restart

And that’s it!

Enjoy!

SuperTramp83

I am a translator!

Hors ligne
A rejoint: 10/31/2014

Sure viejito. In fact I wrote "OR". I can not but notice that for once you are not only not trolling but actually contributing with a sensible answer. What happened, viejito? Are you ok? :)

icaroperseo
Hors ligne
A rejoint: 08/21/2014
icaroperseo
Hors ligne
A rejoint: 08/21/2014

El viernes, 21 de octubre de 2016 19:23:39 CDT name at domain escribió:
> I am trying to change my DNS to open NIC from comcast but I can not delete
> my old DNS. I can't figure this out. Can someone help?

https://wiki.archlinux.org/index.php/Resolv.conf

Best regards.