This work by Stephane KATTOOR is licensed under a Creative Commons Attribution 3.0 Unported License.
There is a feature in OpenSSH since v3.9 which allows multiple SSH connections with the same caracteristics (host, port, remote login) to be made through a single TCP connection. This is useful because you’ll have to authenticate only once, and besides the new SSH connections will be much faster to establish.
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If you’ve been following my blog for a while, you might have seen posts about SSH, RSYNC, ZFS Snapshots and so on. This article aims at describing the big picture, and to explain how I’ve been using those tools and technologies to build my own home backup system.
Quoting the RSYNC homepage : “rsync is an open source utility that provides fast incremental file transfer.”
To make rsync both secure and automated (i.e : non-interactive), you can use SSH as the transport and set up a key pair. This is what will be discussed in this post, along with a few improvements.
If you experience a slow SSH connection to a Solaris 10 host while after connection everything works fine, then read on !
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