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Hardening OpenSSH 9.6/9.7 in FreeBSD
While following the suggestions of https://github.com/jtesta/ssh-audit/wiki/FreeBSD and security/py-ssh-audit 3.2.0, I figured it’s better to make adjustments to the startup script in libexec/rc/rc.d/sshd.
Read More → Hardening OpenSSH 9.6/9.7 in FreeBSDFHD and 8×16 font for FreeBSD guests in VirtualBox
I decided to play with FreeBSD 13.3-RC1 in VirtualBox. My display is capable of 1920×1200, and we must specify this both in the VirtualBox XML file for the guest and in the guest’s /boot/loader.conf. The font specification goes in the latter file.
Read More → FHD and 8×16 font for FreeBSD guests in VirtualBoxSecurity Onion 2.4.40 and so-elastalert running on the manager
We upgraded our Security Onion nodes today. We really had no choice. I was surprised to see the so-elastalert container normally running on the manager being unable to start. I happened to glance at the release notes, and tried the commands suggested there. Suffice it to say, I got nowhere.
Read More → Security Onion 2.4.40 and so-elastalert running on the managerCisco Catalyst 9600 and fixed wire speeds
If you connect your Cisco Catalyst 9600 to equipment using fixed wire speeds, you may need to issue the speed nonegotiate command on affected switchports.
Read More → Cisco Catalyst 9600 and fixed wire speedsnetdata 1.42.2 and run as user = netdata
netdata was recently updated to 1.42.2 in the FreeBSD ports collection. The sample configuration file needs some adjustment.
Read More → netdata 1.42.2 and run as user = netdataDell PowerEdge R330, Dell PERC H730 Adapter, L2/L3 Cache error was detected on the RAID controller
The Dell PERC H730 Adapter, a 12 Gbit/s SAS controller, in a Dell PowerEdge R330 server, complained about “L2/L3 Cache error was detected on the RAID controller.” This server was using BIOS 2.16.0 in UEFI mode and the SAS controller ran firmware version 25.5.0.0018. Entering X to accept the current predicament went nowhere and nothing else […]
Read More → Dell PowerEdge R330, Dell PERC H730 Adapter, L2/L3 Cache error was detected on the RAID controllerREDZONE: Buffer overflow detected
I updated my laptop running FreeBSD current yesterday. For the first time I saw kernel messages about redzone violations.
Read More → REDZONE: Buffer overflow detectedAdopting Curl 7.88.1 ahead of the official branch of the FreeBSD ports collection
pkg audit has flagged Curl 7.87.0_1 as vulnerable for a week or so.
Read More → Adopting Curl 7.88.1 ahead of the official branch of the FreeBSD ports collectionUpgrading MySQL from 5.7 to 8.0
Upgrading MySQL from 5.7 to 8.0 was mostly uneventful.
Read More → Upgrading MySQL from 5.7 to 8.0Preparing to upgrade MySQL
You can’t configure nor download a newer version of the MySQL client using the FreeBSD ports collection while an older version is installed. It’s outrageous.
Read More → Preparing to upgrade MySQL