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0613ec9986
I recently noticed a mysterious delay at connection startup while using an SSH jump host, and investigated it in case it was a bug in the new jump host code that ought to be fixed before 0.77 goes out. strace showed that at the time of the delay PuTTY was doing a DNS lookup for the destination host, which was hanging due to the authoritative DNS server in question not being reachable. But that was odd, because I'd configured it to leave DNS lookup to the proxy, anticipating exactly that problem. But on closer investigation, the _proxy_ code was doing exactly what I'd told it. The DNS lookup was coming from somewhere else: namely, an (unsuccessful) attempt to set up a GSSAPI context. The GSSAPI library had called gethostbyname, completely separately from PuTTY's own use of DNS. Simple workaround for me: turn off GSSAPI, which doesn't work for that particular SSH connection anyway, and there's no point spending 30 seconds faffing just to find that out. But also, if that puzzled me, it's worth documenting! |
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| CMakeLists.txt | ||
| config.but | ||
| errors.but | ||
| faq.but | ||
| feedback.but | ||
| gs.but | ||
| index.but | ||
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| mancfg.but | ||
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| plink.but | ||
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