Firewall firefighting

Posted on 1 July 2011 by Andy Saunders

The intention of this post is to explain what’s been happening with the University Firewall, what we’ve been doing about it and what we intend to do. The University Firewall Service is provided by a pair of Cisco FWSMs running … Continue reading →

Posted in Firewall | Leave a comment

DNSSEC first steps

Posted on 14 January 2011 by Andy Saunders

DNSSEC is a security extension to the Domain Name System which offers origin authentication of DNS data data integrity authenticated denial of existence This is useful in helping to protect against attacks such as DNS cache poisoning. Information on DNSSEC … Continue reading →

Posted in DNS | 3 Comments

URIBL is back

Posted on 2 September 2009 by Andy Saunders

We had to remove Oxmail’s checking of URIs against the URIBL blacklist a couple of weeks ago after a change of licensing meant that we could no longer use it for free. JANET(UK) has now purchased a private datafeed and … Continue reading →

Posted in Mail Relay | Leave a comment

VPN Service changing server IP addresses

Posted on 24 August 2009 by Andy Saunders

This change is not happening now.  This message is simply to give advance notice in order to give you time to change your firewall rules if necessary. The current VPN Service is provided by a single server with IP address … Continue reading →

Posted in VPN | Tagged | Leave a comment