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Meta
Webcache Hardware Refresh
Our servers are kept in warranty/hardware support so that hardware failures can be quickly replaced with minimum effect on the service. The webcache has had new hardware purchased for it to replace hardware going out of warranty. I’ve been preparing … Continue reading
Posted in General Maintenance, Services, Web Cache
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Fixing the iPhone OS WiFi auto-login problem
Some time ago, shortly after iPhone OS 3.0 was released, we received a number of reports from users that our VPN-based wireless service had become unusable. For those not familiar with this service, OWL is one of our local wireless … Continue reading
Posted in VPN, Wireless
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Connecting to JANET
Sorry it’s been a little while since our last post. We’re just coming to the end of the summer vacation, the point when we (and most other IT support staff around the university) get things ship-shape in time for the … Continue reading
Posted in Backbone Network, Cisco Networks
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Moving to a new ARP and MAC logging system
To locate a node (workstation, printer, etc) on the network, you use a combination of the ARP logs from a router, and the MAC-port mappings from a switch. The ARP log translates IP to MAC, and the MAC-port log translates … Continue reading
Posted in Backbone Network
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OWL Phase 2 WAP, Oxpoints integration
When OWL Phase 2 funding was given we were asked to quickly put together a database table and front end so that IT support staff could register access points. We were aware at the time that the schema was going … Continue reading
Posted in Wireless
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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
Posted in Mail Relay
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Wireless Application Firewall
In order to prevent ‘Location Independent Network’ abuse resulting in C&D orders landing on the desks of ITSS, we’ve recently added an Allot Netenforcer to the backend of eduroam and OWL. It will be configured to block P2P traffic and … Continue reading
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