Most people that know me well will know that I really don’t like the way Vodacom runs their firewalls for their 3G consumers. In fact, they’ve managed to make it onto my blog no less than 3 times now – and not once for anything they’ve done right. And now Cell C have decided to join the crowd of braindead arseholes who can’t run firewalls. I present to you the man-in-the-middle TCP connection reset. As it stands right now I can’t ssh. I can’t connect to my jabber server. I can’t even browse. At least, not using my Cell C internet connection.
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Archive for the ‘Security’ Category
Cell C following in the footsteps of Vodacom?
Sunday, July 4th, 2010
The Great Wall of Vodacom – FAIL
Tuesday, May 25th, 2010Right, so Kevin (one of my staff) had the savvy to take a few tcpdump traces on both the client and the server side of a failed PPtP VPN connection over the weekend. The result? It seems the great firewall of Vodacom has yet again taken another victem. (more…)
ARP Spoofing – a lost art? Maybe not.
Sunday, May 10th, 2009Just over a month back we had an incident where the default gateway on our servers would just sporadically stop responding, we first observed this as our servers sporadically just stopping to respond and only once we realized we could log on to other servers and during these “outages” we could still communicate with our servers via our other servers (ie, we could access them from the local LAN but not anywhere else) did we start pointing fingers at the gateway. (more…)
Ahead of the spammers – for once.
Friday, November 7th, 2008The Tuks Linux User Group has had a an excellent track record in the past. We had some problems on the Wiki with SPAM just after the Wiki got put up, and then some problems with spam bots on the forums. The general solution to these problems is CAPTCHAs. Those of you familiar with phpbb will know it’s useless.
