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500 OOPS error from vsftpd

·226 words·2 mins
If you find yourself with the ever-so-peculiar 500 OOPS error from vsftpd when you attempt to login over SSH, there could be a few different things at play.

FreeBSD: Limiting closed port RST response

·115 words·1 min
One of the nifty things about FreeBSD’s kernel is that it will limit closed port RST responses, which, in layman’s terms, just means that if someone repeatedly hits a port that’s closed, the kernel won’t respond to all of the requests.

Relay access denied

·151 words·1 min
If you’re checking through your mail logs, or you catch a bounced e-mail with “554 relay access denied” in the bounce, the issue can be related to a few different things:

Reset MySQL root password

·92 words·1 min
If you’ve forgotten the root password for a MySQL server, but you know the system root, you can reset the MySQL root password pretty easily.