The Clam Closes

We use a lot of open source software in our team and we try to contribute a little back to the community when we can.  The central mail relay, Oxmail, had been using ClamAV since sometime between 2003 and 2005 … Continue reading

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Firewall firefighting

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

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DNSSEC first steps

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

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URIBL is back

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

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VPN Service changing server IP addresses

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

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