Multiple SSH connections (Was Re: [Ilugc] Re: Intruders cracked my Server)
- From: kapil@xxxxxxxxxxx (Kapil Hari Paranjape)
- Date: Sun Jun 22 15:09:58 2008
Hello,
On Sat, 21 Jun 2008, Raja Subramanian wrote:
it is easy to establish more than N connections per minute over
the LAN through regular usage through various shell scripts, maintenance
tasks, etc.
Multiple ssh connections are not really required for recent openssh
clients. These create a local "connection socket" which allows
multiple ssh clients to operate through one TCP connection.
For example my config file for a specific client looks like:
Host somename
User myname
ControlPath ~/.ssh/%r.%h.sock
ControlMaster auto
StrictHostKeyChecking yes
IdentityFile ~/.ssh/myid_dsa
PasswordAuthentication no
UserKnownHostsFile ~/.ssh/known_hosts
ForwardX11 no
ForwardAgent no
As a consequence, if I log in to "somename" once, then the
same TCP connection can be re-used by other clients---without
re-authentication. This is most useful if I later need to "scp" a file
to the "somename" while remaining connected.
Regards,
Kapil.
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