octavia

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Stephen Balukoff 81c73bd1b5 Make SSH bind to management net only Our present amphora image create scripts set up the ssh daemon on the amphora to bind to the wildcard interface (which is the default). However, this causes problems for anyone who tries to set up a listener on TCP port 22, since haproxy will not be able to bind to the same IP. This patch introduces a dhclient post-bind script to the amphora image to gracefully rebind the SSH-daemon to only the load balancer management net IP when it comes up on the network, solving the above use case. This patch has the secondary benefit of making the amphora's SSH daemon only respond to requests on the management network, which incrementally increases the security of the amphora. Change-Id: Iab93cec1f4dc4a2e37ad3cb8a92c132383dcda6a Closes-Bug: #1551505	2016-03-04 13:58:33 -08:00
..
finalise.d	Make SSH bind to management net only	2016-03-04 13:58:33 -08:00
README.rst	Make SSH bind to management net only	2016-03-04 13:58:33 -08:00

Stephen Balukoff 81c73bd1b5 Make SSH bind to management net only

Our present amphora image create scripts set up the ssh daemon on the
amphora to bind to the wildcard interface (which is the default).
However, this causes problems for anyone who tries to set up a listener
on TCP port 22, since haproxy will not be able to bind to the same IP.

This patch introduces a dhclient post-bind script to the amphora image
to gracefully rebind the SSH-daemon to only the load balancer management
net IP when it comes up on the network, solving the above use case. This
patch has the secondary benefit of making the amphora's SSH daemon only
respond to requests on the management network, which incrementally
increases the security of the amphora.

Change-Id: Iab93cec1f4dc4a2e37ad3cb8a92c132383dcda6a
Closes-Bug: #1551505

2016-03-04 13:58:33 -08:00

finalise.d

Make SSH bind to management net only

2016-03-04 13:58:33 -08:00

README.rst

Make SSH bind to management net only

2016-03-04 13:58:33 -08:00

README.rst

This element adds a post-BOUND script to the dhclient configuration to rebind the ssh daemon to listen only on the management network interface. The reason for doing this is that some use cases require load balancing services on TCP port 22 to work, and if SSH binds to the wildcard address on port 22, then haproxy can't.

This also has the secondary benefit of making the amphora slightly more secure as its SSH daemon will only respond to requests on the management network.