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I upgraded the RAM on my Cisco Pix 515E at work today. The twist is that I didn't pay out the nose prices for what was simply a pair of 168 pin, SDRAM modules. Instead, I salvaged a pair of low profile 64MB SDRAM modules, tested them with memtest to make sure they tested error free, then replaced the single 32MB module that was already installed. With the Unrestricted license, my Pix 515E with OS version 6.3(5) now shows that I have a full 128MB available.

Update: did the 7.2(3) upgrade and from what I've read, there's not a whole lot I would gain from going up to 8.x at this point. I'll have to revisit this in a few months to see what changed. One nice result of the upgrade though is that Mac OS X, Windows XP, and Windows Vista clients can all VPN over L2TP/IPSec!

I'm in the process of setting up a virtual, Ubuntu-based server on Virtuozzo and ran into a couple of issues. Apparently, there are some issues with using the Plesk interface to configure the firewall (doesn't work) and you have to resort to using the Virtuozzo module in the container manager GUI to first set the "Advanced firewall mode with default policy Accept" to set up the various chains with correct links specifically for the VZ container.

Once that's completed and you start to manually construct your iptables rules, don't forget to include an accept rule for TCP port 8880 in addition to the standard Plesk TCP port 8443. If you neglect this additional port, Plesk will throw a hissy fit and report that all hell has broken loose on your virtual server.