Date: Tue, 27 Aug 2002 09:56:15 +0400 From: Andrew Karjagin <Andrew.Karjagin@newmail.ru> To: freebsd-isp@freebsd.org Subject: Re: ppp -auto -nat Gateway routing problem Message-ID: <20020827055615.28800.qmail@flock1.newmail.ru>
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Yes, it is DNS problem. But editing /etc/hosts doesn't resolve it. Qmail have very strong security options and it require full time DNS-server access. So when you disconnect from your provider Qmail start working very slowly, because try to find DNS-servers. Change it to Exim, for example (www.exim.org). This program doesn't have so paranoya options, stable, very simple configured and worked very well for me.
ðÎ, 26.08 19:02 you wrote:
>
>Possibly a DNS issue? Try running tcpdump to see what traffic is triggering
>the
>dialup.
>
>Maybe try banging your own IP addresses into /etc/hosts to speed things up a
>bit.
>
>Jamie
>
>----- Original Message -----
>From: "Fabrizio Ravazzini" <freefabri@yahoo.it>
>To: <freebsd-isp@FreeBSD.ORG>
>Sent: Monday, August 26, 2002 3:51 PM
>Subject: ppp -auto -nat Gateway routing problem
>
>
>> Hello all. I've done a Gateway on FreeBSD4.5 for a
>> small lan, connecting to Internet with a 56K modem.
>> On this gateway I've installed also qmail,pop3 and
>> courier imap for send and receive(fetchmail) mails
>> from internet.
>> This the scheme: ed0
>> Internet----56Kmodem--Fbsdbox---------------LAN
>> 192.168.0.1 192.168.0/24
>>
>> The problem is that when the modem is disconnected, if
>> I try for example to "telnet 192.168.0.1 25" from a
>> machine on the Lan to test q-mail, the q-mail server
>> takes a very very long time to respond me.
>> And if the modem is also light-up, he attempt to
>> connect to internet.
>> When the modem is connected to internet all works
>> well.
>> I use user-ppp in this way:
>> ppp -auto -nat provider (or with flags in rc.conf)
>>
>> Looking at the routing tables I see that the default
>> route is the 10.0.0.2, right because of the ppp.
>> If I delete the default route ("route delete default")
>> the q-mail daemon responds ok and also pop and imap,
>> but the ppp doesn't work because I deleted the default
>> route.
>> This is the output of "netstat -rn":
>>
>> Routing tables
>>
>> Internet:
>> Destination Gateway Flags Refs Use Netif Expire
>> default 10.0.0.2 UGSc 0 0 tun0
>> 10/24 link#1 UC 0 0 dc0
>> 10.0.0.2 10.0.0.1 UH 1 0 tun0
>> 127.0.0.1 127.0.0.1 UH 0 0 lo0
>> 192.168.0 link#3 UC 0 0 ed0
>>
>> ~snip IPV6
>>
>>
>> And this is the /etc/rc.conf:
>> gateway_enable="YES"
>> firewall_enable="YES"
>> firewall_type="OPEN"
>> hostname="Walrus.Gsg"
>> ppp_enable="YES"
>> ppp_mode="auto"
>> ppp_nat="YES"
>> ppp_profile="provider"
>> inetd_enable="YES"
>> kern_securelevel_enable="NO"
>> keymap="it.iso"
>> linux_enable="YES"
>> moused_enable="NO"
>> moused_type="NO"
>> nfs_reserved_port_only="NO"
>> sendmail_enable="NO"
>> sshd_enable="YES"
>> ifconfig_dc0="inet 10.0.0.1 netmask 255.255.255.0"
>> ifconfig_ed0="inet 192.168.0.1 netmask 255.255.255.0"
>>
>>
>> Anybody knows what do I have to do to make the qmail
>> and other servers have a faster response and Internet
>> connection working?
>>
>> Thanks all
>>
>>
>>
>>
>>
>> ______________________________________________________________________
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>>
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>
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