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2916 discussions

hotmail issues since 18/1 ?
by Per Jessen 25 Jan '16

25 Jan '16

Hoi zäme I have a couple of customers complaining they are unable to send emails to hotmail - typically they see rejects such as this: > 550 SC-001 (BAY004-MC5F11) Unfortunately, messages from 88.198.198.124 > weren't sent. Please contact your Internet service provider since part > of their network is on our block list. It doesn't affect all customers and checking our logs, it appears to have started 18/1. Prior to that we had no problems delivering outbound mails to hotmail, since then I see 149 bounces with the message above). The customers are on dynamic ranges from Swisscom, UPC and e.g. Virgin (in the UK). Has anyone seen something similar? -- Per Jessen, Zürich (-0.1°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland.

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Looking for an OOB ethernet link in ColoZueri Room 4.2
by Andre Keller 24 Jan '16

24 Jan '16

Dear fellow SwiNOGers, we from the CommunityRack.org association are looking for someone who can provide us with an out-of-band ethernet link in ColoZueri Room 4.2. We need a single public IPv6 and/or IPv4 address on a copper ethernet link that we can connect to our management jumphost. Other than SSH we only do some puppet provisioning of the jumphost itself and some basic keep-alive monitoring. So bandwidth usage on the link should be pretty minimal (<100kbps). Anybody able to help us out? Cheers, André

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SwiNOG-BE151 - Beer Event 151 @ Don Weber / ZH
by Emanuel Kleindienst 22 Jan '16

22 Jan '16

Dear SwiNOGers, This is my first attempt to organize our Zurich Beer Event after taking over from Steven... So pls. accept that everything will go wrong - and already does as I'm way too late... :-D Lets have some Beer & Food at DON WEBER! Here you find the dates for 2016 as well. I'll send out ICS file later today. > SwiNOG-BE151: Mo, 25.1.16 > SwiNOG-BE152: Mo, 22.2.16 > SwiNOG-BE153: Mo, 28.3.16 > SwiNOG-BE154: Mo, 25.4.16 > SwiNOG-BE155: Mo, 23.5.16 > SwiNOG-BE156: Mo, 27.6.16 > SwiNOG-BE157: Mo, 25.7.16 (vacation time...) > SwiNOG-BE158: Mo, 29.8.16 > SwiNOG-BE159: Mo, 26.9.16 > SwiNOG-BE160: Mo, 24.10.16 > SwiNOG-BE161: Mo, 28.11.16 > SwiNOG-BE162: Mo, 12.12.16 (Weihnachtstreff) Looking forward seeing you! Emanuel, Mobile +41 79 382 73 77, Email emanuel(a)vshn.ch Details for the next event: ----------------------------------------------- Event: SwiNOG-BE151 - Beer Event 151 When? Monday, 25th January 2016 18:30 Where? Don Weber Heinrichstrasse 213, 8005 Zürich http://www.donweber.ch/ (GoogleMaps Link: http://goo.gl/maps/PqOPb) !! Please sign up if you're really coming - because the seats are limited! !! ----------------------------------------------- Registration: Start: Friday, 22nd January 2016 - 12:00 Stop: Monday, 25th January 2016 - 17:00 Reg-URL: http://swinog.be/ ----------------------------------------------- Since we have to make reservations, I need to know who's coming and who not. If you can't attend and you're registered please inform me ASAP (+41 79 382 73 77). Cheers, Emanuel -- Emanuel Kleindienst CCO VSHN AG | Neugasse 10 | CH-8005 Zürich T: +41 44 545 53 00 | M: +41 79 382 73 77 | https://vshn.ch

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Damian Conway @ FHWN in April
by Tobias Oetiker 21 Jan '16

21 Jan '16

Dear Swinogers A short 'Veranstaltungshinweis' Some of you techno geeks may already be aware of Damian Conway ... the famouse Australian Über Geek will be teaching a bunch of tech classes at the FHWN in Brugg this coming April. If you have not seen Damian in action yet, this is your chance :) If you are already a fan, you may enjoy some of the new topics he is presenting this year. Get a taste of Damian in this Video of him explaining Regular Expressions. https://youtu.be/-d684RMZUV4 Details on the classes are on http://www.fhnw.ch/technik/weiterbildung/informatik/conway-seminars cheers tobi -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland www.oetiker.ch tobi(a)oetiker.ch +41 62 775 9902

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VoIP provider
by Andreas Fink 20 Jan '16

20 Jan '16

Does anyone know a list of VoIP providers in Switzerland who can port in a number block? I'm looking for one which supports SIPS (via TLS) and SRTP and can do trunking to a PABX of my choice. The big guys only support their own certified crap and the small ones don't support privacy required features which changed post Snowden from "want to have" to "absolutely mandatory" feature. Andreas Fink DataCell ehf, Backbone ehf, Cajutel Inc, Alisanus GmbH ------------------------------------------------------------------ c/o Alisanus GmbH Clarastreasse 3, 4058 Basel, Switzerland E-Mail: andreas(a)fink.org <mailto:andreas@fink.org> https:// <https://www.fink.org/>www.fink.org <https://www.fink.org/> Mobile: +41-78-6677333 Office: +41 61 6666330 Skype: andreasfink Jabber/XMPP: andreas(a)fink.org <mailto:andreas@fink.org> ICQ: 8239353 ------------------------------------------------------------------

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www.post.ch IPv6 MTU issue
by JACOT-DESCOMBES Antoine 15 Dec '15

15 Dec '15

Hello Swinog members, There is apparently an MTU issue with SwissPost website when MTU of the link is <1500 bytes. It is like if webserver answers everytime with 1500 bytes packets and doesn't make PMTUD. The client connexion is over 6in4 with 1480 bytes MTU. No issues with other IPv6 enabled sites. Can another person with <1500MTU connexion confirm the same behaviour, and maybe anyone from Swiss Post IT take a look at this probable ICMP filtering issue. Below are the tests done: jacota@cactus:~$ curl -6 http://www.post.ch/ <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>301 Moved Permanently</title> </head><body> <h1>Moved Permanently</h1> <p>The document has moved <a href="https://www.post.ch/">here</a>.</p> </body></html> ==> small packet <1480bytes ==> OK jacota@cactus:~$ curl -6 https://www.post.ch/ no answer ==> SSL negociation with full packets ==> FAIL jacota@cactus:~$ telnet -6 www.post.ch 443 Trying 2a00:17c8:0:103::20a... Connected to www.post.ch. Escape character is '^]'. ==> TCP connectivity with port 443 ==>OK Best regards, Antoine Jacot-Descombes

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PPTP over Swisscom DSL centro grande
by Daniel Borer 15 Dec '15

15 Dec '15

Hi there Does anybody know? Is there a known issue with centro grande dsl router and PPTP VPN over swisscom net? We have several customers that can’t establish a connection any more - since about 2 or 3 weeks. Thanks for some help Daniel Borer

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IPTV channel switch tester
by Stanislav Sinyagin 10 Dec '15

10 Dec '15

I published a script that was laying around in my private repository for few years already. I think it may be useful for some folks here: https://github.com/ssinyagin/multicast_channel_switch_test -- Stanislav Sinyagin Senior Consultant, CCIE #5478 ssinyagin(a)k-open.com +41 79 407 0224

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Re: [swinog] UPC rejecting mails as spam?
by Stanislav Sinyagin 10 Dec '15

10 Dec '15

hi, I didn't really dig through. Just indicating that your email ended up in spam :) On Thu, Dec 10, 2015 at 11:33 AM, Per Jessen <per.jessen(a)enidan.com> wrote: > Stanislav Sinyagin wrote: > >> your email ended up in my spam folder, and I'm using google mail. So, it >> looks like something is wrong with your sender host. >> >> Here's what I found in email headers: >> >> X-I7-Spam-score: -2.6 >> > > Hi Stanislav > > Unless I've completely misread it, it seems my mail got -2.6 points, can't > be that bad :-) > > Anyway, I'm not the one with a problem, it's UPC customer, a friend of > mine. > > > /Per > -- Stanislav Sinyagin Senior Consultant, CCIE #5478 ssinyagin(a)k-open.com +41 79 407 0224

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UPC rejecting mails as spam?
by Per Jessen 10 Dec '15

10 Dec '15

Does anyone @UPC happen to know what this means: host mx.hispeed.ch [213.46.255.2]: 552 5.2.0 rl4b1r00p3kCCMl01l4bgK automated process detected unsolicited content The email is being sent from a UPC connection, via Hostpoint (mail.hostpoint.ch) to a user @swissonline.ch. The user has tried getting an explanation from UPC, but sofar no luck. -- Per Jessen, Zürich (2.8°C)

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