🧠 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
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
🎤 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 ?
 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...
🎤 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
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
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
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!
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
 
      
  
             
      
  
             
      
  
             
      
  
                            
                        
                         
      
  
             
      
  
             
      
  
             
      
  
             
      
  
             
      
  
                            
                        
                        ![Screenshot of a terminal with the following text. Some parts have been redacted / deleted for privacy:
WARNING: You should check the app notifications above before continuing, there might be important stuff to know. [Press enter to continue]: client loop: send disconnect: Broken pipe
$ ssh -p
Enter passphrase for key '/home =
Linux “amd ea #1 SMP Debian x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terns for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
You have no mail.
Last login: Mon Aug 18 03:11:30 2025 from
$
$ sudo yunohost tools upgrade apps
[sudo] password for XXXXXX
Warning: Another YunoHost command is running right now, we are waiting for it to finish before running this one
Warning: Still waiting...
Warning: Still waiting...
Warning: Still waiting...](https://f2.tchncs.de/media_attachments/files/115/049/019/330/907/949/original/165a7837c16f65d3.png)