Re: [swinog] vdsl2 line gone bad - ideas ? (Solved)
s/Herzog/Hertzog/ (sorry) -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch t...@oetiker.ch ++41 62 775 9902 / sb: -9900 ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] vdsl2 line gone bad - ideas ? (Solved)
> We have this VDSL2 line at one of our customer sites, which aquired > high packet loss from one day to the other ... > > we are using a fritzbox 7390 at the site and according to its log > there are no problems, also the DSL Information tab does no count > a high number of errors ... > > Here are the smokeping observations of the link > > http://oss.oetiker.ch/smokeping-demo/?displaymode=n;start=2013-01-15%2013:50;end=now;target=Customers.HorYzon > > Any hints on getting this fixed. Thanks to Matthias Herzog for pointing me in the right direction. It seems that 2-3 months ago, AVM has released a new firmware for the Fritz!Box which does (non configurable) rate limiting on ICMP packets. The worst about this is, that they seem to be looking at the overall number of ICMP packets, not per sender or somethhing like this. By raising the ping interval in smokeping to 5 seconds, the problem went away ... cheers tobi ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
[swinog] Veranstaltung IPv6-Kongress am 6. und 7. Juni 2013 in Frankfurt am Main
[Disclaimer: posting in German only is not meant to be unpolite. But the event is in German language only.] Hallo Leute, ein kurzer Hinweis: alles rund um IPv6 gibt es wieder am am 6. und 7. Juni 2013 in Frankfurt am Main wie gewohnt im Metropolis Kino. Programm: http://www.ipv6-kongress.de/events/ipv6-kongress/Programm-vorlaeufig.html Ort & Unterkunft: http://www.ipv6-kongress.de/events/ipv6-kongress/Location-Hotels.html Anmeldung: http://www.ipv6-kongress.de/events/ipv6-kongress/Anmeldung.html Viele Grüße und TGIF (für einige sicher ein laaanges WE) Arnold -- Arnold Nipper / nIPper consulting, Sandhausen, Germany email: arn...@nipper.de phone: +49 6224 5593407 2 mobile: +49 172 2650958 fax: +49 6224 5593407 9 signature.asc Description: OpenPGP digital signature ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] Email forwarding and backscatter, any idea how to solve?
Hi Benoit > In some cases it seems nearly impossible to me to prevent backscatter > if you got email forwardings. > > How do other ISP solve that problem? Just tell you customers you > won't offer email forwarding any more? Forwarding to a sigle address would ideally be done with your mailserver acting as a proxy, i.e. opening a smtp connection to the final destination server and forwarding the status codes to the sender. However you'll most certainly get in trouble if the recipient mailserver is using SPF. And as you said, forwarding to multiple addresses is a bit tricky... Maybe you need to trade backscatter for mailbox storage: forward all mails with the envelope from of a local mailbox of the user and have that user check his mailbox at your place from time to time. I'm afraid I don't see a solution without having either backscatters or using local storage for the "bounces". Cheers Jean-Pierre -- HILOTEC Engineering + Consulting AG - Langnau im Emmental Energietechnik und Datensysteme: Server, PCs, Linux, Telefonanlagen, VOIP, Hosting, Datenbanken, Entwicklung, Komplettlösungen für KMUs Tel: +41 34 402 74 00 - http://www.hilotec.com/ ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
[swinog] Email forwarding and backscatter, any idea how to solve?
Hello World! I am working on renewing our ISP email solution. I'm focusing on minimizing any troubles while filtering spam etc. Eg, an email either arrives at the recipient or is rejected during SMTP handshake. Unfortunately some customers do forward their email addresses to other addresses, this can be internal or external addresses and this can be multiple addresses. In some cases it seems nearly impossible to me to prevent backscatter if you got email forwardings. How do other ISP solve that problem? Just tell you customers you won't offer email forwarding any more? Mit freundlichen Grüssen Benoit Panizzon -- I m p r o W a r e A G- __ Zurlindenstrasse 29 Tel +41 61 826 93 07 CH-4133 PrattelnFax +41 61 826 93 02 Schweiz Web http://www.imp.ch __ ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
