A simple DNS resolver that goes through a SOCKS 5 proxy.

The main program.

1. Modify and save the following snippet as [CONFIG_FILE_NAME]:

{
  "local_addr":"",
  "proxy_addr":"",
  "remote_addr":"",
  "direct_addr":""
}

2. Write down the domain suffixes you want to query without the proxy and save as [RULESET_FILE_NAME].

3. Run python3 resolve.py -c [CONFIG_FILE_NAME] -x [RULESET_FILE_NAME].

Command-line flags:

--config,-c [path to config file]
--rules,-x [path to ruleset file]
--laddr,-l [local listening address]
--paddr,-p [proxy address]
--raddr,-r [server to be queries through proxy]
--daddr,-d [server to be directly queried]
--log-file,-o [file to write log to]

This file includes an easy-to-use Buffer class, and provides a basic DNS parser with related classes. EDNS0-specific RRs are kept as is. DNSSEC is not tested.

• Implement repacking of DNS message
  • Implement repacking with compression (kinda pointless nowadays)
• Parse EDNS0 info
• Reuse TCP connection with a relay on a remote server
• Actually truncate UDP response
• Implement DNS caching
• Automatically choose between proxy and direct
• More powerful rule matching

GPLv3