LOW
The severity is rated LOW due to the nature of this issue being a configuration and performance problem rather than a security vulnerability. While it impacts user experience, there's no direct risk to system integrity or confidentiality. The real-world exploitability in homelab and production environments is non-existent as this does not involve a vulnerability that can be exploited by attackers.

The issue at hand involves a significant degradation in internet speeds when using a proxy service on an Arch Linux system, specifically affecting media streaming quality while maintaining optimal performance without the proxy. The user initially used hiddify and later switched to xray CLI as their proxy clients but observed no improvement in speed issues. This problem is particularly perplexing given that the network performs well without the proxy or when accessed via a different device using the same proxy service, suggesting a software configuration issue rather than an underlying hardware or ISP limitation. The user attempted troubleshooting steps such as adjusting MTU settings on their WiFi interface based on community recommendations but found no resolution to the problem.

Affected Systems
  • Arch Linux with hiddify
  • xray CLI
Affected Versions: All versions of hiddify and xray CLI used during the period when performance issues were observed
Remediation
  • Check network configurations for any recent updates or changes that might have affected proxy settings: `grep -r 'proxy' /etc/network`
  • Review firewall rules to ensure they are not blocking or throttling traffic through the proxy: `iptables -L | grep PROXY_SERVICE`
  • Reconfigure DNS settings if using a custom resolver, as misconfiguration can affect network speed: Edit `/etc/resolv.conf` and ensure correct nameserver entries.
  • Perform a clean reinstall of the proxy client (hiddify or xray CLI) to rule out any local corruption causing performance issues.
Stack Impact

This issue impacts common homelab stacks using Arch Linux with proxy services like hiddify or xray CLI. Users might face degraded network speeds when streaming media, even though the hardware and ISP support higher bandwidths.

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