feature: better network handling for proxy and dns

[0xle0ne]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 52.38095% with 30 lines in your changes missing coverage. Please review.

Project coverage is 61.69%. Comparing base (7c9344a) to head (352521a).
Report is 1 commits behind head on nightly.

Files with missing lines	Patch %	Lines
bin/ncproxy/src/utils/rule.rs	15.00%	17 Missing ⚠️
bin/ncdns/src/utils.rs	65.00%	7 Missing ⚠️
bin/ncvpnkit/src/main.rs	0.00%	4 Missing ⚠️
bin/ncproxy/src/utils/nginx.rs	83.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           nightly    #1047      +/-   ##
===========================================
- Coverage    61.71%   61.69%   -0.02%     
===========================================
  Files          209      209              
  Lines        15436    15477      +41     
===========================================
+ Hits          9526     9549      +23     
- Misses        5910     5928      +18     

Flag	Coverage Δ
unittests	61.69% <52.38%> (-0.02%)	⬇️

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