Category: Networking
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Postfix delete mails from/to one address
Monit suddenly sending 18.000 e-mail? Gmail blocking your mx IP & getting all other incoming emails to your Gmail account (as it’s getting forwarded to Gmail) delayed? Have no fear… mailq | grep [email protected] | cut -d’ ‘ -f1 | xargs -rn1 postsuper -d Edit the e-mail address. Note: mainly a reminder for myself. 😉
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Gmail & Postfix: unencrypted emails?
If you’re running Postfix, add this line to main.cf: smtp_tls_security_level = may Restart Postfix, and retry. PS: You can set encrypt instead of may — but this can cause issues with Amavis and/or SpamAssassin.
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Belgian banks & SSL — part 5
Minor end of year update. No big SSL exploits have been released since (bar DH, see below). Once again, this is testing the public websites I can access. There might be other gateways, APIs, etc that are not (as) secure. It’s worthy to note that some banks are serious about security and fixing their SSL.…
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Mobile: It Changes Everything
(Source)
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Qatar WiFi
I flew from Doha to Brussels on a brand new (0.4 year old) Dreamliner. There is on board WiFi, and it’s unlike those I’ve seen before on Lufthansa. The WiFi is provided by OnAir (owned by SITA, ex Airbus), a Swiss-Merican company using what cell towers (that’s what their landing page said — but their website…
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The End of Privacy
(Source).
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Proximus Innovation: D-Link DCS-2132L
Proximus Innovation team handed me a D-Link DCS-2132L (ver. B1) to play with. I have some experience with, what is considered, a professional (~€120 + tax) PoE surveillance camera: the Unifi Video Camera (basic version). Amazon retails this D-Link for around €120 (including tax). So it’s worth noting it’s almost the same price as a metal, semi…
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Stibbe – Cybercrime
Short presentation about the ease of finding and getting into unprotected systems. PDF can be downloaded here. Presentation given at Stibbe on 5 May 2015.
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CIFS: mount error(13): Permission denied
You’ve just updated your Raspberry Pi (or whatever Linux) and you’re noticing your CIFS (smb) mounts aren’t getting auto mounted anymore. You curse and start noticing this error: # mount -t cifs //192.168.1.100/public -o username=public,password=public sam/ mount error(13): Permission denied Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) The solution is to add after…