Some notes and tools for reverse engineering / deobfuscating / unminifying obfuscated web app code.
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Last active
December 8, 2025 12:48
Some notes and tools for reverse engineering / deobfuscating / unminifying obfuscated web app code
- 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.
- On WG server, I started an
iperf3server - On WG peer, I wrote a script that does the following:
wg-quick down wg0
- Edit MTU in the
/etc/wireguard/wg0.conffile
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| # Source: | |
| # https://www.cloudflare.com/ips | |
| # https://support.cloudflare.com/hc/en-us/articles/200169166-How-do-I-whitelist-CloudFlare-s-IP-addresses-in-iptables- | |
| for i in `curl https://www.cloudflare.com/ips-v4`; do iptables -I INPUT -p tcp -m multiport --dports http,https -s $i -j ACCEPT; done | |
| for i in `curl https://www.cloudflare.com/ips-v6`; do ip6tables -I INPUT -p tcp -m multiport --dports http,https -s $i -j ACCEPT; done | |
| # Avoid racking up billing/attacks | |
| # WARNING: If you get attacked and CloudFlare drops you, your site(s) will be unreachable. | |
| iptables -A INPUT -p tcp -m multiport --dports http,https -j DROP |