Justas
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2026-04-06 LinuxEnable Proxmox weekly containers fstrim
What is fstrim? fstrim tells SSDs or thin-provisioned storage which blocks are no longer used by the filesystem so they can be reclaimed. Without TRIM/discard: deleted data still looks “used” to the storage layer SSD performance slowly degrades thin storage pools appear full even when files were deleted write amplification increases (reduces SSD lifespan) Running…
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2025-10-04 LinuxDebian 13 "trixie" sysctl tutorial
Create or edit a custom config file in /etc/sysctl.d/ sudo nano /etc/sysctl.d/99-custom.conf Add your settings, e.g.: net.ipv4.ip_forward = 1 vm.swappiness = 10 Apply the changes: sudo sysctl --system Verify: sysctl net.ipv4.ip_forward sysctl vm.swappiness
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2025-08-30 AS215899Looking for BGP IPv6 transit in Lithuania
We are looking for IPv6 BGP transit sessions in Lithuania or in neighboring countries like Latvia, Poland for a small monthly fee, or sponsorship. Default or full routing tables are acceptable. Connection via virtual tunnel (GRE, WireGuard, etc.) or VPS servers with BGP sessions are suitable. Contact: [email protected] https://bgp.tools/as/215899
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2025-08-27 sdr.Gudynas.lt ProjectSDR.Gudynas.lt upgrades, ADS-B receiver installed
It so happened that the modifications were made on April 19, 2025, but I only got around to writing about them now, once I finally had some free time. 🙂 But hey—better late than never! So, what has been done:…
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2025-03-16 LinuxIPv6 RADVD SLAAC Config
# /etc/radvd.conf interface vmbr1 { AdvSendAdvert on; MinRtrAdvInterval 30; MaxRtrAdvInterval 100; prefix 2a0f:85c1:334:8::/64 { AdvAutonomous on; # Enable SLAAC AdvOnLink on; }; };
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2024-11-29 LinuxHow do I execute ALL sudo commands without password?
Type the following command as root user: # visudo Append the following entry to run ALL command without a password for a user named tom: tom ALL=(ALL) NOPASSWD:ALL
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2024-11-09 sdr.Gudynas.lt ProjectReady for Winter, Network upgrades, and What was done in 2024 for sdr.gudynas.lt project
For a long time, I did not create any post related to the sdr.gudynas.lt project, although during the last year, many improvements and changes have been made, which in one way or another affect the receiver's operation. So I will…
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2024-01-26 WindowsHow to Resolve Boot Issues after Upgrading (increasing) RAM memory (No video signal fix)
Problem Description: After upgrading the RAM on your PC to increase memory capacity, you may encounter boot issues where the system fails to boot properly on the first cold start. Symptoms include the computer starting up but without any video output, requiring a restart to boot normally and display video. Possible Cause: The issue may…
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2024-01-16 LinuxWireguard Clients isolation
This will block traffic between clients: ip6tables -I FORWARD -i wg0 -o wg0 -j REJECT --reject-with icmp6-adm-prohibited iptables -I FORWARD -i wg0 -o wg0 -j REJECT --reject-with icmp-admin-prohibited To disable isolation for single client: iptables -I FORWARD -i wg0 -s 10.0.0.3/32 -d 10.0.0.0/24 -j ACCEPT 10.0.0.3/32 - Single client IP 10.0.0.0/24 - Subnet allow to…
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2023-12-14 LinuxLimit proxmox backup disk speed
nano /etc/vzdump.conf add bwlimit: 12207 save This will limit read/write speed to 12 MiB/s during backup
