07-18-2012
Drops even when busy, or only when idle?
Putting settings into /proc/ for keepalives isn't too great an idea since it will apply to
all your connections, even ones which don't need it, increasing your bandwidth a lot. Getting the right combination of settings to do what you actually want can be tricky, too.
I usually use
libkeepalive when I need to connect to something with obnoxious timeouts. It can be applied to a single program, works for anything(intercepting
socket calls to impose default keepalive settings when a program creates a TCP socket) and is relatively easy to configure.
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LEARN ABOUT PHP
ssh2_shell
SSH2_SHELL(3) 1 SSH2_SHELL(3)
ssh2_shell - Request an interactive shell
SYNOPSIS
resource ssh2_shell (resource $session, [string $term_type = "vanilla"], [array $env], [int $width = 80], [int $height = 25], [int
$width_height_type = SSH2_TERM_UNIT_CHARS])
DESCRIPTION
Open a shell at the remote end and allocate a stream for it.
PARAMETERS
o $session
- An SSH connection link identifier, obtained from a call to ssh2_connect(3).
o $term_type
-$term_type should correspond to one of the entries in the target system's /etc/termcap file.
o $env
-$env may be passed as an associative array of name/value pairs to set in the target environment.
o $width
- Width of the virtual terminal.
o $height
- Height of the virtual terminal.
o $width_height_type
-$width_height_type should be one of SSH2_TERM_UNIT_CHARS or SSH2_TERM_UNIT_PIXELS.
RETURN VALUES
EXAMPLES
Example #1
Executing a command
<?php
$connection = ssh2_connect('shell.example.com', 22);
ssh2_auth_password($connection, 'username', 'password');
$stream = ssh2_shell($connection, 'vt102', null, 80, 24, SSH2_TERM_UNIT_CHARS);
?>
SEE ALSO
ssh2_exec(3), ssh2_tunnel(3), ssh2_fetch_stream(3).
PHP Documentation Group SSH2_SHELL(3)