swinog September 2008

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35 participants
25 discussions

Content delivery system like Akamai?
by Marco Fretz 02 Sep '08

02 Sep '08

Hi everyone, I think most of you now Akamai and how they deliver 20% of total internet content traffic... This looks like a good explanation: http://research.microsoft.com/~ratul/akamai.html Has anyone tried to build a system similar to Akamai? I should be possible to build it, in a smaller way of course. Some modified named (bind) servers, Squid, etc. >From my point of view, Akamai does the right thing: Why try to have lots of peerings, good transit connnections, etc. when you can serve the content directly out of the most popular ISP networks. They don't need their own network infrastructure for content delivery services (hosting). Is here anyone interested in this topic? Anyone has time and interest to build, "research" and test a "small Akamai" hosting system? My idea is in general: - 2-3 providers (one of you?) - each ISP "donates" 2-3 servers for the project (physical or virtual) - find a modified bind and squid or rebuild it to do this Akamai-like "DNS and url magic" - write a lot of shell scripts for monitoring, etc. - test the bunch of magic with our company sites :P ... but maybe I'm just crazy and you might simply ignore this post :-) thanks, have a nice day best regards Marco

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Re: [swinog] Content delivery system like Akamai?
by Stanislav Sinyagin 02 Sep '08

02 Sep '08

Guys, are you intending to build a service, or just want to play around? A service would involve hardware investment, SLA, on-call support staff, sales personnel, and tons of other investment - are you willing to start that today? ----- Original Message ---- > From: Marcel Prisi <marcel(a)virtua.ch> > To: swinog(a)swinog.ch > Sent: Tuesday, September 2, 2008 11:23:31 AM > Subject: Re: [swinog] Content delivery system like Akamai? > > Hi, > > There is already some software there : > > http://www.globule.org/ > > Looks quite dead, but seemed to work quite well ... Might be a start. > > > Le mardi 02 septembre 2008 à 10:38 +0200, Marco Fretz a écrit : > > Hi everyone, > > > > I think most of you now Akamai and how they deliver 20% of total > > internet content traffic... > > > > This looks like a good explanation: > > http://research.microsoft.com/~ratul/akamai.html > > > > Has anyone tried to build a system similar to Akamai? I should be > > possible to build it, in a smaller way of course. Some modified named > > (bind) servers, Squid, etc. > > > > From my point of view, Akamai does the right thing: Why try to have lots > > of peerings, good transit connnections, etc. when you can serve the > > content directly out of the most popular ISP networks. They don't need > > their own network infrastructure for content delivery services (hosting). > > > > Is here anyone interested in this topic? Anyone has time and interest to > > build, "research" and test a "small Akamai" hosting system? > > > > My idea is in general: > > - 2-3 providers (one of you?) > > - each ISP "donates" 2-3 servers for the project (physical or virtual) > > - find a modified bind and squid or rebuild it to do this Akamai-like > > "DNS and url magic" > > - write a lot of shell scripts for monitoring, etc. > > - test the bunch of magic with our company sites :P > > > > ... but maybe I'm just crazy and you might simply ignore this post :-) > > > > > > thanks, have a nice day > > best regards > > Marco > > > > _______________________________________________ > > swinog mailing list > > swinog(a)lists.swinog.ch > > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > > > > _______________________________________________ > swinog mailing list > swinog(a)lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog

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FTP block somewhere between AS6775 and AS16215 (Global Networks -> Genotec)
by Anthony Uk / dataway GmbH 02 Sep '08

02 Sep '08

Here is an unusual situation seen from our network (AS 8237). Our direct SwissIX peering with Genotec has been down for a few weeks now (can someone from Genotec contact me about this). Since then we have noticed the following effect: If our traffic to Genotec is routed via AS 6775, then we are unable to establish an FTP connection to Genotec, although WWW works as usual. # traceroute to gic-web-bsd-016.genotec.ch (82.195.224.116): 1-30 hops, 38 byte packets 1 ZHS08 (195.216.80.8) 0.268 ms 0.146 ms 0.115 ms 2 as6775.swissix.ch (194.242.34.40) 2.41 ms 1.57 ms 2.62 ms 3 ge0.2.border-01.iwb.ipv4.as16215.net (194.242.34.16) 2.95 ms (ttl=252!) 3.17 ms (ttl=252!) 2.48 ms (ttl=252!) 4 * * * 5 * * * 6 (interrupt) # telnet 82.195.224.116 21 Trying 82.195.224.116... (Timeout) # telnet 82.195.224.116 80 Trying 82.195.224.116... Connected to 82.195.224.116. Escape character is '^]'. However if the traffic goes through another AS (e.g. AS 13030), then everything is fine. # traceroute 82.195.224.116 traceroute to gic-web-bsd-016.genotec.ch (82.195.224.116): 1-30 hops, 38 byte packets 1 ZHS08 (195.216.80.8) 0.247 ms 0.128 ms 0.175 ms 2 swissix-zh.init7.net (194.242.34.7) 0.677 ms (ttl=62!) 4.0 ms (ttl=62!) 0.659 ms (ttl=62!) 3 r1bas.ce.init7.net (213.144.128.57) 1.43 ms 3.86 ms 1.41 ms 4 gw-genotec.init7.net (77.109.134.170) 2.17 ms 2.15 ms 2.47 ms 5 * * * 6 * * * 7 * * * 8 (interrupt) # telnet 82.195.224.116 21 Trying 82.195.224.116... Connected to 82.195.224.116. Escape character is '^]'. 220- 220- .y/ 220- ::::::. ::::::. -oso+s/ `+ooo/` os+oso. `/oso+` `sMd+` `/ooo/` `/oso+` 220- `o-```/:`o.```/: `mm-.+My `dm/:+Ny mN:.:Nd` yN:.-md` /My. dm/:/Nh dm:.-:` 220- `/::::/- /::::/- .Nh .My .Nd+++o+` mm dm` dm hN. -Ms `Md+++oo `Nh 220- `/::::/- /::::/- odysyMy odyosy- dm dm` /dhsyd+ `ddo` +dyosy: +dysys` 220- `o. /:`o. /: `:--+Mo `...` .. .. `...` `.. `...` `...` 220- `::::::. ::::::. -osss: 220- 220- Genotec Internet Consulting AG 220- Hegenheimermattweg 119a, CH-4104 Allschwil BL 220- email: support(a)genotec.ch --- http: www.genotec.ch 220- 220- 220 FTP server ready Is AS 6775 really filtering port 21 at the backbone level? That would clearly be quite unusual. Can anyone else see this effect? For the time being, I am disabling our peering to AS 6775, but it would be nice for whoever it concerns to look into this. Kind regards Anthony -- | Anthony Uk | dataway GmbH | Tel. +41 44 299 9988 | | uk(a)dataway.ch | Hohlstrasse 216 | Fax +41 44 299 9989 | | PGP key ID 10DE1D2C | CH-8021 Zuerich | http://www.dataway.ch |

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Re: [swinog] Content delivery system like Akamai?
by Stanislav Sinyagin 02 Sep '08

02 Sep '08

----- Original Message ---- > From: Marco Fretz <mailinglist(a)blah.li> > I've never set up IPv4 anycast services but as far as I know anycast is > only recommended for connection less / session less services (DNS, > etc...). I never saw http content delivered over anycast, because it's > TCP and you need consistent data. pls correct me if I'm wrong... Anycast is just using the same public IP address for serving the content from multiple locations. From your PC the packets will anyway definitely be delivered to only one of such locations, the nearest one (considering the routing is set up correctly), and packets from those locations will anyway reach your PC. So, there's generally no reason not to use TCP services with such a set-up.

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Re: [swinog] Content delivery system like Akamai?
by Mathias Schrem 02 Sep '08

02 Sep '08

Guten Tag Ich bin vom 30.08.08 bis und mit 14.09.08 nicht im Büro. In dringenden Fällen wenden Sie sich bitte an unseren Support. --- Hello I'm out of office from 30.08.08 till 14.09.08. In urgent cases please contact our Support. --- Fon: 0848 000 627 / International: +41 44 802 68 99 Fax: 0848 000 628 E-Mail: support(a)netstream.ch Freundliche Grüsse Regards Mathias Schrem

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swinog September 2008