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If like me, you are trying to enable Audit Policies on Windows computers in a domain using Local Policies > Audit Policy, and it does not work, then you came to the right place. Legacy Audit Policy: audit object access settings in Local Security Policy The reason is: that is the legacy way to configure Audit Policies. Like Windows XP legacy. You will find plenty of resources out there telling you this is because Advanced Audit Policy is enabled and you need to disable it by setting Local Policies > Security Options > Audit: Force audit policy subcategory settings to override audit policy category settings to Disabled to make it work....

If you have the power of multiple servers connected to a UPS, you probably need to shut them down when the power goes down and before the UPS runs out of juice. Unless your UPS can be connected to the network, you usually can only connect a single device to it using good old serial or brand new USB. That single host now knows about the UPS status, but what about all the other systems?...

Recently, I had to set up a new PKI. I was going to go with the good old OpenSSL but it’s 2021, there must be a more userfriendly and, more importantly, automated approach. There are many open-source possibilities: EJBCA, cfssl, Hashicorp Vault, Smallstep Certificates. I chose to use Smallstep certificates because it has all the features I need and they are not behind a pay-wall: lightweight: small Go binary, you can run it with a file-based database (similar to SQLite) user friendly CLI: compared to openssl commands ACME protocol: useful for Traefik reverse proxy OIDC authentication support: the guys are super friendly and available on their Discord channel Be sure to check their website, they have other features that you might want, especially their Certificate Manager....

If you plan to buy the Antec NX800 for your new build, you should be aware of a couple of things. First, it is one of the cheap-ish cases that support a 280mm radiator at the top. This is the primary reason I bought this case. Second, if you mount a radiator at the top, mount it last. Especially, mount it after you screwed the motherboard and plugged all cables (especially CPU power and fans)....

When I moved in Luxembourg, I subscribed to Tango Luxembourg Fiber internet access. Back then, I got the usual dynamic public IP address “for free”. It was changing every 36 hours but at least it was a public one. Recently, I changed my subscription to the 1 gigabit/s offer and soon after, I realized my VPNs and 6to4 tunnel was not working anymore. After a brief troubleshooting session, I found out I was receiving a private IP address instead of the usual public 94....

I recently installed an Ubuntu 21.04 and when I wanted to install Atom editor, I was given the following warning about apt-key being deprecated: Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)). After a bit of Googling around, I stumbled on this post on askubuntu.com explaining why apt-key was being deprecated. Then the folks at docker.com give a nice easy command to convert an old PGP key in base64 to a keyring....

After reading many articles and trying many things, this is how I solved it. For docker daemon itself to use a proxy, configure environment variables using systemd file /etc/systemd/system/docker.service.d/http-proxy.conf : [Service] Environment="HTTP_PROXY=http://user:pass@proxy.domain.com:3128/" Environment="HTTPS_PROXY=http://user:pass@proxy.domain.com:3128/" Environment="NO_PROXY=localhost,docker,*.domain.com" For gitlab-runner daemon itself to use a proxy, configure environment variables using systemd file /etc/systemd/system/gitlab-runner.service.d/http-proxy.conf : [Service] Environment="HTTP_PROXY=http://user:pass@proxy.domain.com:3128/" Environment="HTTPS_PROXY=http://user:pass@proxy.domain.com:3128/" Environment="NO_PROXY=localhost,docker,*.domain.com" Reload systemd and restart docker daemon: systemctl daemon-reload systemctl restart docker For git commands run by gitlab-runner to use a proxy, use gitlab-runner config file....

It happens I recently had to install Gitlab and was a bit lost about what to do right after the setup finished, perhaps this will help. By default, Gitlab stores its data files in /var/opt/gitlab and its backups in /var/opt/gitlab/backups. It would be a good idea to use dedicated partitions for each of those directories. Let’s say you use /dev/sdb1 for Gitlab data and /dev/sdc1 for the backups. gitlab-ctl stop mkdir /mnt/gitlab mount /dev/sdb1 /mnt/gitlab mkdir /mnt/gitlab/backups mount /dev/sdc1 /mnt/gitlab/backups tar -C /var/opt -cf - gitlab | tar -C /mnt -xpsf - umount /mnt/gitlab/backups umount /mnt/gitlab mv /var/opt/gitlab /var/opt/gitlab....

Here is how to establish an IPsec tunnel between an Ubuntu 20.04 host and a Mikrotik router using IKEv2. The 2 endpoints of the tunnel are: ubuntu.xentoo.info : the Ubuntu server. This server has a local private subnet 10.0.0.0/24 and a fixed public IPv4 address 1.2.3.4 . The hostname ubuntu.xentoo.info resolves to the public IP address. mikrotik.xentoo.info : the Mikrotik router. This router has a local private subnet 192.168.0.0/24 and a dynamic public IPv4 address....

“Firefly III” is a (self-hosted) manager for your personal finances. You can find more about it on the following sites: https://github.com/firefly-iii/firefly-iii https://docs.firefly-iii.org/ Install prerequisites Let’s first install the requirements to run Firefly. Firefly documentation says it runs on PHP 7.2 but that’s wrong, it needs >=7.3 . Unfortunately, Ubuntu 19.04 comes with PHP 7.2 by default, so we need to use a PPA to have a more recent version. ondrej/php PPA has version 7....