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Posts with Tag: email

Automatically Import zfs zpool On USB Disk Attach With devd on FreeBSD

Repetitio est mater tediorum

1 minute, 15 seconds
Automatically Import zfs zpool On USB Disk Attach With devd on FreeBSD

I had a situation where zpool on external USB disk would not get imported automatically at boot time. but manual zpool import extwd worked fine. I guessed rc script which imports known zpools at boot time runs before USB disk gets attached, so I looked for mechanism which would trigger import on attach. In FreeBSD this can be done with devd - device state change daemon.

A Journey Of My MX Server To New Residential IPv4 Address

Rough but ultimately successful ride

5 minutes, 31 seconds
A Journey Of My MX Server To New Residential IPv4 Address

I have recently moved my MX server to a new IPv4 address. Admittedly, new IPv4 address is in quite bad neighbourhood, a residential /24 pool provided by ISP who doesn't filter outgoing SMTP by default. Most other IPv4 addresses in this pool have quite poor reputation, probably without their users even knowing their malware infested devices are being used to send spam. It took less than a week since I took over this new IPv4 for it to get dropped from most of lists such as spamhaus which actively monitor and list spamming IP addresses, delisting them automatically when spamming stops.