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(I wrote the post below yesterday, but using autocomplete rather carelessly I didn't send it to the list but to one user.) On Fri, May 10, 2013 at 9:59 AM, I wrote: > For the past few days, I've been experiencing very slow outbound ssh > connections. They either don't work at all, or become unusable. That > is, when I do get in, it takes forever for the pressing of a key to be > recognised by the remote server. When I tail -f a log file, there > doesn't appear to be a delay. > > I've tried four different servers, at three different providers, and > they all have the same problem; I can also connect to these through my > work's VPN just fine. Using that, I made ssh listen on another port, > thinking that my provider (Demon) might be blocking something, but > that doesn't make any difference. > > Internet itself works just fine. > > I've turned the machine off a few times this week (for other reasons). > That didn't make a difference. > > I can also connect through tor. I haven't used ssh through tor often, > but it works reasonably well - not worse than you'd expect through > tor. I'd say this reduces the chances of this being an issue on the > machine. > > Any thoughts? Well, I'm pretty sure it was related to curl attempting to fetch a RSS feed that was running in an infinite 302-redirect loop. Browsers, as well as wget, just give up after a handful of times, but curl 7.22.0 apparently doesn't. At least not in this particular case. Demon were rather helpful providing me with a graph of network usage this morning, which showed me this was likely to be the cause - after I had already noticed a lot of instances of a Perl script calling curl had been running for ages. Still not sure why it only caused problems some of the time - and why it allowed me to do other stuff (including ssh via tor). And let's just hope that particular site hasn't blocked my IP address for DDoS'ing their server. Martijn. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq