Networking
Mikrotik RouterBOARD 450G capacitors
My 450G died on me this weekend. I’ve had it running for some two years or so with no problems whatsoever. I had the feeling it was a serious hardware problem as it wouldn’t beep when I applied the power. Also a reset (holding reset and plugin in power) didn’t made any difference. Serial cable … Continue reading
Ubuntu 10.04 LTS: DHCP3-server and bridge running late
In Ubuntu 10.04 LTS (and also in previous versions as well) the DHCP3-server fails to start when using a bridged config. There are some solutions, but the best one is using the post-up and pre-down directives in the /etc/network/interface file and disabling the daemon from automatically starting in the same runlevel. # The loopback network … Continue reading
Ziggo: SMTP outbound blocked
Ha! En waar ik al jaren loop te zeuren dat inbound SMTP blocken alleen maar lastig is – maar dus zeker niet je SPAM stopt – heeft men bij Ziggo eindelijk een nette uitbreiding doorgevoerd om nu eens echt de rommel te stoppen vanuit het eigen netwerk. Ziggo heeft sinds 4 maart outbound SMTP geblocked. … Continue reading
Hairpin NAT using the Mikrotik
I’m using a Mikrotik Routerboard 450G and since a day or so I stopped using a split DNS approach to access the blog on the LAN. I’ve implemented a Hairpin NAT schema, but I’m having some issues. I can see running tcpdump that the web request from within the LAN to the public IP originate … Continue reading
ADSL upgrade to 20Mbit
My provider xs4all decided to straighten out their speed/price ratio as it was somewhat poorly compared to the other providers here in the Netherlands. As they announced an upgrade tot 20Mbit/s on April 1st I was sure they were pulling an April fools’. As it turned out they were quite serious about it so I … Continue reading