Date: Tue, 14 Sep 2010 17:49:07 +0200 From: "Terrence Koeman" <root@mediamonks.net> To: "tomasz dereszynski" <tomaszd@paraklet.net>, "Matthias Apitz" <guru@unixarea.de>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: RE: sendmail && resolv.conf changes Message-ID: <254c61d2cccd564d8fd93ae56635d6c0@mediamonks.com> In-Reply-To: <a5d6ccd9138943cd5da379a1b534acec.squirrel@paraklet.net>
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> -----Original Message----- > From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd- > questions@freebsd.org] On Behalf Of tomasz dereszynski > Sent: Tuesday, September 14, 2010 11:28 AM > To: Matthias Apitz; freebsd-questions@freebsd.org > Subject: Re: sendmail && resolv.conf changes > > > > El d=EDa Tuesday, September 14, 2010 a las 09:15:49AM +0100, tomasz > > dereszynski escribi=F3: > > > >> > >> > > >> > Hello, > >> > > >> > When using a laptop it is normal that there are some changes in > >> > resolv.conf during the live, for example: > >> > > >> > boot time: no network available > >> > start of PPP over UMTS: resolv.conf from provider > >> > start VPN to connect to company: resolv.conf from company > >> > ... > >> > > >> > it seems that sendmail is not aware of such changes in the > resolv.conf > >> > and always get stuck with the old DNS and ofc does not work on > >> incoming > >> > mails (provided by fetchmail). A restart helps, but is there some > >> better > >> > way to let sendmail switch to the new DNS environment when > resolv.conf > >> > changes? > >> > > >> > Thanks > >> > > >> My very wide guess would be that Sendmail starts before system > obtain > >> network settings from DHCP. > > > > Your guess is correct :-) > > > > What I wanted to say: sendmail runs and DHCP changes in certain > > situations the IP, routing and DNS, and sendmail does not adopt on > these > > changes. > > > delay Sendmail start to after network settings loaded from DHCP. > > not sure if there is any 'documentation correct' way of doing that but > 'home crafted' one would be to move /etc/rc.sendmail to > /usr/local/etc/rc.d/blah.sendmail.sh and remove it from rc.config > > hope someone here knows more proper way and can advise. > It might be an idea to (mis)use the "script" option in dhclient.conf to res= tart sendmail (/etc/rc.d/sendmail restart) after a lease has been aquired. = See 'man dhclient.conf'. -- Regards, T. Koeman, MTh/BSc/BPsy; Technical Monk MediaMonks B.V. (www.mediamonks.com) Please quote all replies in correspondence.
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