DNS not being populated in resolv.conf

[Kaushal Shriyan]

On Sat, Nov 27, 2010 at 1:21 PM, Tom H <tomh0665 at gmail.com> wrote:

> On Fri, Nov 26, 2010 at 9:08 PM, Kaushal Shriyan
> <kaushalshriyan at gmail.com> wrote:
> >
> > I have three Internet Service Provider to connect to internet from my
> laptop
> > running Ubuntu Desktop Linux OS 10.04
> > For example ISP A, ISP B ISP C
> > ISP A  --> is the Office Network (when i am in office )
> > ISP B -->  is the Mobile Broadband Network (when i am moving )
> > ISP C --> is the Home Network (when i am at home)
> > Also in addition to the above details :-
> > I have local DNS Server at office, DNS server of Data Center 1 and DNS
> > Server of Data Center 2. so whenever i am in office, by default i need to
> > connect to these
> > three DNS Servers in order to access the servers.
> > The steps i have followed after using resolvconf
> > sudo apt-get install resolvconf
> > sudo rm /etc/resolv.conf
> > sudo ln -s /etc/resolvconf/run/resolv.conf /etc/resolv.conf
> > sudo vim /etc/openvpn/update-resolv-conf
> >
> > Add the following lines in the beginning.
> >
> > foreign_option_1='dhcp-option DOMAIN off.example.com dc1.example.com
> > dc2.example.com'
> > foreign_option_2='dhcp-option DNS 172.26.0.1'
> > foreign_option_3='dhcp-option DNS 10.20.0.1'
> > foreign_option_4='dhcp-option DNS 10.20.0.2'
> > foreign_option_5='dhcp-option DNS 10.30.0.1'
> > save and exit
> > Add the below two lines at the bottom of the file openvpn client DC1.conf
> >
> > up /etc/openvpn/update-resolv-conf
> > down /etc/openvpn/update-resolv-conf
> > The issue which i am facing is that I am unable to resolve the local DNS
> > Servers at office. I need the local DNS Server in order to access Network
> > printers
> > and other devices.
> > Office DNS Server is off.example.com and DNS Server IP is 172.26.0.1
>
>
Hi Tom,


> Are all five options above for your office network?
>
>
Not sure i understand that ?


> Please post "cat /etc/resolv.conf" after you connect to your office
> network.
>
>
cat /etc/resolv.conf in my Ubuntu Laptop Desktop PC running 10.04

search  off.example.com  ### office
search dc1.example.com ### DataCenter No.1
search dc2.example.com' ### DataCenter No. 2
DNS 172.26.0.1
DNS 10.20.0.1
DNS 10.20.0.2
DNS 10.30.0.1

Please suggest further

Thanks

Kaushal
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