Tor relay on vserver exeeding numtcpsock

Klaus Layer klaus.layer at
Thu Jan 13 08:51:42 UTC 2011

Am Mittwoch, 12. Januar 2011, um 22:44:12 schrieb Moritz Bartl:
> Hi,
> You should probably contact the ISP first to see if they will raise the
> limit. Mine was low on file descriptors and they upped it generously 5
> minutes later (on a cheap $20 vserver).
> Moritz

Thanks for all your suggestions. This morning I contacted the HostEurope 
support. They were very friendly but refused to increase the parameter. They 
told me that the product is designed this way and they cannot change anything. 
They advised me to order a product with a higher number of tcp sockets. But 
even the high-end vserver product for EUR 70 ($90) per month only provides 
1550 tcp connections ( All 
these HostEurope vserver products are crippled regarding numtcpsock.

Bottom line: HostEuropes vserver cannot be recommended for tor relays. I will 
update the wiki accordingly.

I will move to another ISP. In the meantime I will play around with the 
ConstrainedSocksSize parameter to get the most out of the vserver.

Moritz, from which ISP did you get this $20 vserver?



Klaus Layer
Walldorf, Germany
GPG Fingerprint: 466D 12F8 28A3 D137 A77E FC3B 271C 2D79 6F5E 94C9
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