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Top Forums UNIX for Dummies Questions & Answers ssh_exchange_identification: Connection closed by remote host Connection closed Post 302284187 by cbkihong on Thursday 5th of February 2009 12:43:22 AM
Old 02-05-2009
Is it possible that one of your systems has run out of file descriptors? Because every socket is also a "file" in Unix and also occupies FDs. Just a wild guess anyway.

Have you checked the SSH log at the server side and does that give you any clues?
Test Your Knowledge in Computers #484
Difficulty: Medium
A compiler transforms source code into object code, a floating point number format that machines understand.
True or False?

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socket_getpeername  -  Queries the remote side of the given socket which may either result in host/port or in a Unix filesystem path, dependent on
its type

bool socket_getpeername (resource $socket, string &$address, [int &$port]) DESCRIPTION
Queries the remote side of the given socket which may either result in host/port or in a Unix filesystem path, dependent on its type. PARAMETERS
o $socket - A valid socket resource created with socket_create(3) or socket_accept(3). o $address - If the given socket is of type AF_INET or AF_INET6, socket_getpeername(3) will return the peers (remote) IP address in appropri- ate notation (e.g. or fe80::1) in the $address parameter and, if the optional $port parameter is present, also the associated port. If the given socket is of type AF_UNIX, socket_getpeername(3) will return the Unix filesystem path (e.g. /var/run/daemon.sock) in the $address parameter. o $port - If given, this will hold the port associated to $address. RETURN VALUES
Returns TRUE on success or FALSE on failure. socket_getpeername(3) may also return FALSE if the socket type is not any of AF_INET, AF_INET6, or AF_UNIX, in which case the last socket error code is not updated. NOTES
Note socket_getpeername(3) should not be used with AF_UNIX sockets created with socket_accept(3). Only sockets created with socket_con- nect(3) or a primary server socket following a call to socket_bind(3) will return meaningful values. Note For having socket_getpeername(3) to return a meaningful value, the socket it is applied upon must of course be one for which the concept of "peer" makes sense. SEE ALSO
socket_getsockname(3), socket_last_error(3), socket_strerror(3). PHP Documentation Group SOCKET_GETPEERNAME(3)

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