Hi, In case you’ve a dual boot machine, sometimes it might happen that grub menu is no longer appearing. For systems using regular BIOS, a grub-install against the device it was installed might be required, but when using UEFI, it’s really easy to use a rescue media and execute efibootmgr to alter the boot order. When executing efibootmgr, it might output some information like this: BootCurrent: 0001 Timeout: 0 seconds BootOrder: 0001,0019,001D,001C,0017,0018,001A,001B,001E,001F,0020,0000 Boot0000* Windows Boot Manager Boot0001* Fedora Boot0010 Setup Boot0011 Boot Menu Boot0012 Diagnostic Splash Screen Boot0013 Lenovo Diagnostics Boot0014 Startup Interrupt Menu Boot0015 Rescue and Recovery Boot0016 MEBx Hot Key Boot0017* USB CD Boot0018* USB FDD Boot0019* NVMe0 Boot001A* NVMe1 Boot001B* ATA HDD2 Boot001C* ATA HDD3 Boot001D* ATA HDD0 Boot001E* ATA HDD1 Boot001F* USB HDD Boot0020* PCI LAN Boot0021* IDER BOOT CDROM Boot0022* IDER BOOT Floppy Boot0023* ATA HDD Boot0024* ATAPI CD Note there, the BootCurrent and the BootOrder, the numbers in the BootOrder correspond to the Boot#### that are listed below it. ...

For some of the telegram groups I’m in, I’ve been detecting users that after some period of time, just publish spam messages of any topic. There are many bots for controlling when a user joins, by showing a CAPTCHA that user must resolve (either clicking a button, answering a mathematical operation, inputting a CAPTCHA image text, etc). Some time ago, a colleague was using Machine Learning and I wanted to have a look at it and it would make a good feature to implement. ...

Some years ago I started using geo replication to keep a copy of all the pictures, docs, etc After being using BitTorrent sync and later resilio sync (even if I didn’t fully liked the idea of it being not open source), I gave up. My NAS with 16 GB of ram, even if a bit older (HP N54L), seemed not to have enough memory to run it, and was constantly swapping. ...

I was improving a playbook in Ansible and wanted to find a way to find if a system was virtual or not to decide about some tunning like setting tuned-adm profile virtual-guest or disable the power off when the lid is closed. After some research and try-except situations I got to this one that seemed to work (I had to tune it as one desktop machine was missing the /sys entry I was using before): ...

As said in the article about mixnodes, NYM is a technology aiming for providing privacy for the communications. Apart of the mixnodes, other key piece in the infrastructure are the validators. As said, the project uses Open Source technology to run, and they have a nice docs with details on how to run a node at https://nymtech.net/docs/, and the one relevant for mixnodes at https://nymtech.net/docs/run-nym-nodes/validators/. In this case, we can follow the instructions for compiling, but I faced some issues (compiling went fine, but initial sync failed), so in this case, we will use the pre-compiled version provided with the 0.10.0 release. ...