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Michael lux73

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  • Germany
  • 05:11 (UTC +02:00)
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@buswedg
buswedg / lenovo_430-x_hba_firmware_BIOS_update.md
Created August 2, 2024 22:55
@socheatsok78
socheatsok78 / README.md
Last active July 8, 2026 08:47
A simple fix for using "ca-certificates" to update Java "cacerts" store for container.

About

A simple fix for using ca-certificates to update Java cacerts store for container.

Use with pre-built JDK/JRE container

Due to the update-ca-certificates will output the Java cacerts store to /etc/ssl/certs/java/cacerts which the pre-built image not aware of the changes. So by removing the ${JAVA_HOME}/lib/security/cacerts and create a symbolic link from /etc/ssl/certs/java/cacerts to ${JAVA_HOME}/lib/security/cacerts will resolve the issue.

Alpine

FROM eclipse-temurin:17-jre-alpine
@nitred
nitred / optimal_mtu.md
Last active July 22, 2026 10:53
Wireguard Optimal MTU

About

  • I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
  • I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
  • Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

  • On WG server, I started an iperf3 server
  • On WG peer, I wrote a script that does the following:
    • wg-quick down wg0
  • Edit MTU in the /etc/wireguard/wg0.conf file