ssh_exchange_identification: read: Connection reset by peer

I got this while attempting to ssh into a VM on ubuntu. When I pinged the box, I got this:

PING 192.168.1.86 (192.168.1.86) 56(84) bytes of data.
64 bytes from 192.168.1.86: icmp_seq=1 ttl=64 time=0.614 ms
64 bytes from 192.168.1.86: icmp_seq=1 ttl=64 time=1.89 ms (DUP!)
64 bytes from 192.168.1.86: icmp_seq=2 ttl=64 time=0.602 ms
64 bytes from 192.168.1.86: icmp_seq=2 ttl=64 time=0.925 ms (DUP!)

Whoops! The VM was already running and had been granted the exact same IP. It was responding from two places at the same time, which was confusing the hell out of SSH. Just kill one of the boxes and you’re fine (DHCP release/refresh doesn’t work, because both boxes have the same MAC address).

Thanks to this thread for the hint.

On Apple, the iPhone, and web apps

I’ve written about Apple’s ban on intermediate platforms, and what this means for web apps over on my main blog.

no such file to load — mkmf

I got this when trying to install the ruby thrift client. It’s trying to compile a native extension, which needs ruby 1.8 dev version. Simple fix:


sudo apt-get install ruby1.8-dev