Re: Prevent DHCP from changing resolv.conf
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 22 Apr 2005, Fabian Anklam wrote: Hi All, I have a minor problem regarding my network configuration, specifically that the external interface on my router gets it's IP via DHCP from the ISP, so in rc.conf ifconfig_xl0=DHCP is set. This leads to the single entry in resolv.conf that I want to be there, namely nameserver 127.0.0.1 being replaced with my ISP's nameservers, which in return makes resolving of LAN IPs or even localhost via the installed BIND difficult for the machine. I don't want dhclient to change the resolv.conf. I checked the man pages for resolv.conf, rc.conf and dhclient but couldn't find anything there relating to my problem. Hi, the file you need to modify is /etc/dhclient.conf. for parameters see dhclient.conf(5) normally this file is empty, but you can insert global or per interface require lines for informations the DHCP server has to submit to the client that the IP is acceptable. you can also insert global or per interface lines for informations you want to get from the DHCP server if available but you don't care if the DHCP server gives you nothing on these options and the IP address is accepted. hope that helps joerg - -- The beginning is the most important part of the work. -Plato -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCaMs2SPOsGF+KA+MRAqq4AJ95xhwr4lCKylNi1R2mfBgvtHMkoQCgojT1 SefND9ihSVSrSCKq+0n6wFs= =3VLp -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Prevent DHCP from changing resolv.conf
On 4/22/05, Joerg Pulz [EMAIL PROTECTED] wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, 22 Apr 2005, Fabian Anklam wrote: Hi All, I have a minor problem regarding my network configuration, specifically that the external interface on my router gets it's IP via DHCP from the ISP, so in rc.conf ifconfig_xl0=DHCP is set. This leads to the single entry in resolv.conf that I want to be there, namely nameserver 127.0.0.1 being replaced with my ISP's nameservers, which in return makes resolving of LAN IPs or even localhost via the installed BIND difficult for the machine. I don't want dhclient to change the resolv.conf. I checked the man pages for resolv.conf, rc.conf and dhclient but couldn't find anything there relating to my problem. Hi, the file you need to modify is /etc/dhclient.conf. for parameters see dhclient.conf(5) normally this file is empty, but you can insert global or per interface require lines for informations the DHCP server has to submit to the client that the IP is acceptable. you can also insert global or per interface lines for informations you want to get from the DHCP server if available but you don't care if the DHCP server gives you nothing on these options and the IP address is accepted. hope that helps joerg It does! Looks like i haven't read carefully enough. A prepend domain-name-servers 127.0.0.1 or supersede domain-name-servers 127.0.0.1 in dhclient.conf should be all that's needed. I'll test once I am back at home. Many Thanks, Fabian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Prevent DHCP from changing resolv.conf
I have a minor problem regarding my network configuration, specifically that the external interface on my router gets it's IP via DHCP from the ISP, so in rc.conf ifconfig_xl0=DHCP is set. This leads to the single entry in resolv.conf that I want to be there, namely nameserver 127.0.0.1 being replaced with my ISP's nameservers, which in return makes resolving of LAN IPs or even localhost via the installed BIND difficult for the machine. I don't want dhclient to change the resolv.conf. I checked the man pages for resolv.conf, rc.conf and dhclient but couldn't find anything there relating to my problem. Thanks, Fabian In dhclient.conf, put: prepend domain-name-servers 127.0.0.1; This keeps the DNS that DHCP gives you, but it puts your local one first so you'll be able to find your local domains. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: Prevent DHCP from changing resolv.conf
Or, if you don't feel like editing your dhclient.conf, in your /etc/resolv.conf the first line usually reads: search thisdomain.com nameserver xxx.xxx.xxx.xxx nameserver xxx.xxx.xxx.yyy If you change the first line to read: domain thisdomain.com nameserver xxx.xxx.xxx.xxx nameserver xxx.xxx.xxx.yyy If you change the word search to domain, when the link comes up, dhclient will not search for upstream domain servers and it won't replace your hard-coded DNS server list -- Tim -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Luke Dean Sent: Friday, April 22, 2005 11:35 AM To: Fabian Anklam Cc: freebsd-questions@freebsd.org Subject: Re: Prevent DHCP from changing resolv.conf I have a minor problem regarding my network configuration, specifically that the external interface on my router gets it's IP via DHCP from the ISP, so in rc.conf ifconfig_xl0=DHCP is set. This leads to the single entry in resolv.conf that I want to be there, namely nameserver 127.0.0.1 being replaced with my ISP's nameservers, which in return makes resolving of LAN IPs or even localhost via the installed BIND difficult for the machine. I don't want dhclient to change the resolv.conf. I checked the man pages for resolv.conf, rc.conf and dhclient but couldn't find anything there relating to my problem. Thanks, Fabian In dhclient.conf, put: prepend domain-name-servers 127.0.0.1; This keeps the DNS that DHCP gives you, but it puts your local one first so you'll be able to find your local domains. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
