🧠 Nixers Newsletter #311 is out!
Boot processes, reproducible builds, user-mode Linux, FreeBSD sandboxes, and even /dev/null as a database 😄

Plus:
• Fedora KDE pkg mgmt
• Debian vs systemd
• raconn — a smart tool for parallel SSH connections to multiple hostnames/IPs in one ProxyCommand. (https://blog.izissise.net/posts/raconn/)
• UBIOS (China’s UEFI-alt)

Read it 👉 https://newsletter.nixers.net/entries.php#311

“There are no life hacks, only trade-offs.” — James Clear

#Unix #Linux #FreeBSD #FOSS #SysAdmin #ReproducibleBuilds #SSH #Nixers

🧠 Nixers Newsletter #311 is out!
Boot processes, reproducible builds, user-mode Linux, FreeBSD sandboxes, and even /dev/null as a database 😄

Plus:
• Fedora KDE pkg mgmt
• Debian vs systemd
• raconn — a smart tool for parallel SSH connections to multiple hostnames/IPs in one ProxyCommand. (https://blog.izissise.net/posts/raconn/)
• UBIOS (China’s UEFI-alt)

Read it 👉 https://newsletter.nixers.net/entries.php#311

“There are no life hacks, only trade-offs.” — James Clear

#Unix #Linux #FreeBSD #FOSS #SysAdmin #ReproducibleBuilds #SSH #Nixers

Access *BSD Hyper-V guests from your host via ssh:

1) Enable and start the ssh-agent service on your host by running the following in Powershell, as Administrator:

Set-Service -Name "ssh-agent" -StartupType Automatic
Start-Service -Name "ssh-agent"

2) Generate ssh keys on your host, as your regular user:

ssh-keygen

3) Add the following to .ssh/config on your host, as your regular user:

Host *
AddKeysToAgent yes
IdentityFile ~/.ssh/id_ed25519

Host beastie
HostName 172.22.168.238

Adjust HostName to guest IP (run 'ifconfig' on guest)

4) Connect via ssh from your host to your *BSD guest with:

ssh beastie

#runbsd #hyperv #ssh

Access *BSD Hyper-V guests from your host via ssh:

1) Enable and start the ssh-agent service on your host by running the following in Powershell, as Administrator:

Set-Service -Name "ssh-agent" -StartupType Automatic
Start-Service -Name "ssh-agent"

2) Generate ssh keys on your host, as your regular user:

ssh-keygen

3) Add the following to .ssh/config on your host, as your regular user:

Host *
AddKeysToAgent yes
IdentityFile ~/.ssh/id_ed25519

Host beastie
HostName 172.22.168.238

Adjust HostName to guest IP (run 'ifconfig' on guest)

4) Connect via ssh from your host to your *BSD guest with:

ssh beastie

#runbsd #hyperv #ssh

🎤 Upcoming at SeaGL 2025:
📍 03:00 PM on November 07
🗣️ "SSH Certificates: All the Trust, None of the Fuss"
👥 Speaker(s): Bri Hatch
📍 Room: Room 145
🏷️ Track: Security and Privacy
📝 SSH certificates improve both security and usability. No more TOFU (trust on first use) when you log...

#SeaGL2025 #security #ssh #FLOSS #opensource #linux
🔗 https://pretalx.seagl.org/2025/talk/LFQS3C/

Dis-moi un sshd_config qui n'a aucun PermitRootLogin (donc ni à yes ni à no), ça veut dire que le root login est possible ou qu'il est impossible ?

Y'a (commenté) PermitRootLogin prohibit-password (qui me paraît une option acceptable, non ? ça veut bien dire qu'on ne peut s'y connecter qu'avec une clé ssh autorisée ?) mais y'a rien d'autre sur RootLogin, ni commenté ni décommenté...

#ssh #sysadmin #Debian

🎤 Upcoming at SeaGL 2025:
📍 03:00 PM on November 07
🗣️ "SSH Certificates: All the Trust, None of the Fuss"
👥 Speaker(s): Bri Hatch
📍 Room: Room 145
🏷️ Track: Security and Privacy
📝 SSH certificates improve both security and usability. No more TOFU (trust on first use) when you log...

#SeaGL2025 #security #ssh #FLOSS #opensource #linux
🔗 https://pretalx.seagl.org/2025/talk/LFQS3C/

Anyone on Android 15+ managed to ssh into a local Linux box from the native terminal app now in Android?

Once again, this is using the phone to ssh into a computer. Not the other way round.

I could easily ssh into my account on tty.sdf.org, but it just hangs forever when I try accessing my laptop. Got sshd running, but I've likely set something up wrong.

✅ 📱→ 💻
❌ 💻 → 📱

Update: reinstalled openssh-client, it works now

#android #ssh #terminal #CommandLine #cli

OpenSSH 10.2 released https://www.undeadly.org/cgi?action=article;sid=20251010131052 #openbsd #openssh #ssh #security #networking #login #trickery #shell #tunneling

OpenSSH 10.2 released https://www.undeadly.org/cgi?action=article;sid=20251010131052 #openbsd #openssh #ssh #security #networking #login #trickery #shell #tunneling

OpenSSH 10.1 released https://www.undeadly.org/cgi?action=article;sid=20251006105328 #openbsd #openssh #ssh #security #newrelease #crypto #cryptography #securelogin #networking #freesoftware #libresoftware

OpenSSH 10.1 released https://www.undeadly.org/cgi?action=article;sid=20251006105328 #openbsd #openssh #ssh #security #newrelease #crypto #cryptography #securelogin #networking #freesoftware #libresoftware

Where The Wild Things Are: Brute-Force SSH Attacks In The Wild And How To Stop Them

This document was shared here by @ricci I've not gotten to study the document in detail. JUst saw it again in my download dir of my now defunct miniPC by gigabyte

Of course I will link you to his page so you can download the paper yourself. THe research covers 4 years and 500+ (512?) servers

Go to his post here read and learn.
You can learn a LOT from this research

#ssh#BFA #brute #force #attack #stop #cyberattack

https://discuss.systems/@ricci/112247553557306560

Where The Wild Things Are: Brute-Force SSH Attacks In The Wild And How To Stop Them

This document was shared here by @ricci I've not gotten to study the document in detail. JUst saw it again in my download dir of my now defunct miniPC by gigabyte

Of course I will link you to his page so you can download the paper yourself. THe research covers 4 years and 500+ (512?) servers

Go to his post here read and learn.
You can learn a LOT from this research

#ssh#BFA #brute #force #attack #stop #cyberattack

https://discuss.systems/@ricci/112247553557306560

And #bash knowhow is very useful on many many setups and even "embedded" devices.

I love that even my gaming handheld #R36S supports #bash (over #SSH).

https://handhelds.wiki/R36S

Hmmm...

I did an upgrade in @yunohost via SSH.

While I was waiting, it asked me to press Enter to continue and then the SSH connection timed out and closed. Now when I try to log in again and upgrade it tells me "Another YunoHost command is running right now"...

...So how do I "push enter" on a SSH session that's expired?

Boosts appreciated!

#Yunohost#Selfhosting#SSH

It's heartwarming to a greying geek that a 5000+ words retrospective on greytrapping is turning out to be popular - https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html (tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)

#greytrapping #spam #antispam #greylisting #blocklist #openbsd #freebsd #smtp #email #ssh #passwords #passwordguessing #pop3 #security #networking #cybercrime

It's heartwarming to a greying geek that a 5000+ words retrospective on greytrapping is turning out to be popular - https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html (tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)

#greytrapping #spam #antispam #greylisting #blocklist #openbsd #freebsd #smtp #email #ssh #passwords #passwordguessing #pop3 #security #networking #cybercrime

Friends, it finally happened. On August 7th, 2025, the number of spamtraps intended to fool spammers rolled past the number of inhabitants in my home country of Norway. It's time for a retrospective.

Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off? https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html (tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)

#greytrapping #spam #antispam #greylisting #blocklist #openbsd #freebsd #smtp #email #ssh #passwords #passwordguessing #pop3 #security #networking #cybercrime