Files
s5p/docs/CHEATSHEET.md
user ef0d8f347b feat: add per-hop pool references in listener chains
Allow listeners to mix named pools in a single chain using pool:name
syntax. Bare "pool" continues to use the listener's default pool.
Replaces pool_hops field with pool_seq list; pool_hops is now a
backward-compatible property. Each hop draws from its own pool and
failure reporting targets the correct source pool.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-20 17:50:17 +01:00

6.7 KiB

s5p -- Cheatsheet

CLI

s5p                                         # direct, listen :1080
s5p -C socks5://127.0.0.1:9050             # through Tor
s5p -C socks5://tor:9050,http://px:8080    # Tor + HTTP proxy
s5p -c config/s5p.yaml                      # from config file
s5p -l 0.0.0.0:9999                         # custom listen address
s5p -t 30                                   # 30s per-hop timeout
s5p -v                                      # debug logging
s5p -q                                      # errors only
s5p -S http://api:8081/proxies              # proxy source API
s5p -r 5                                   # retry up to 5 proxies
s5p -m 512                                 # max concurrent connections
s5p --api 127.0.0.1:1081                   # enable control API
s5p --cprofile                              # profile to s5p.prof
s5p --cprofile out.prof                     # profile to custom file
s5p --tracemalloc                           # memory profile (top 10)
s5p --tracemalloc 20                        # memory profile (top 20)

Container

make build   # podman-compose build
make up      # podman-compose up -d
make logs    # podman-compose logs -f
make down    # podman-compose down

Volumes: ./src (ro), ./config/s5p.yaml (ro), ~/.cache/s5p/data (pool state + profiles)

Config

cp config/example.yaml config/s5p.yaml     # create live config (gitignored)

Multi-Listener (config)

listeners:
  - listen: 0.0.0.0:1080
    pool: clean                              # default for bare "pool"
    chain:
      - socks5://127.0.0.1:9050
      - pool                                 # Tor + 2 clean hops
      - pool
  - listen: 0.0.0.0:1081
    pool: clean
    chain:
      - socks5://127.0.0.1:9050
      - pool:clean                           # per-hop: explicit clean
      - pool:mitm                            # per-hop: explicit mitm
  - listen: 0.0.0.0:1082
    chain:
      - socks5://127.0.0.1:9050             # Tor only
  - listen: 0.0.0.0:1083
    pool: clean
    chain:
      - socks5://127.0.0.1:9050
      - pool                                 # bare = clean (default)
      - pool:mitm                            # explicit = mitm

Per-hop pool: pool = listener default, pool:name = explicit pool.

Multi-Tor Round-Robin (config)

tor_nodes:                              # overrides first hop in all listeners
  - socks5://10.200.1.1:9050
  - socks5://10.200.1.254:9050
  - socks5://10.200.1.250:9050
  - socks5://10.200.1.13:9050

Performance Tuning (config)

max_connections: 256   # concurrent connection cap
pool_size: 8           # pre-warmed TCP conns to first hop (0 = off)
pool_max_idle: 30      # evict idle pooled conns (seconds)

Named Proxy Pools (config)

proxy_pools:
  clean:
    sources:
      - url: http://10.200.1.250:8081/proxies/all
        mitm: false                  # adds ?mitm=0
    state_file: /data/pool-clean.json
    refresh: 300
    test_interval: 120
    max_fails: 3
  mitm:
    sources:
      - url: http://10.200.1.250:8081/proxies/all
        mitm: true                   # adds ?mitm=1
    state_file: /data/pool-mitm.json
    refresh: 300
    test_interval: 120
    max_fails: 3

Singular proxy_pool: still works (becomes pool "default").

Source Filters (proxy_pool sources)

Filter Values Query param
proto socks5/socks4/http ?proto=...
country ISO alpha-2 ?country=...
limit integer ?limit=...
mitm true/false ?mitm=1 / ?mitm=0

Tor Control Port (config)

tor:
  control_port: 9051
  password: ""               # or cookie_file: /path/to/cookie
  newnym_interval: 60        # auto-rotate every 60s (0 = manual)
curl -s http://127.0.0.1:1081/tor | jq .                  # status
curl -s -X POST http://127.0.0.1:1081/tor/newnym | jq .   # new circuit

Hot Reload

kill -HUP $(pidof s5p)                    # reload config
podman kill --signal HUP s5p              # container reload

Proxy File Format

# one proxy URL per line
socks5://1.2.3.4:1080
socks5://user:pass@5.6.7.8:1080
http://proxy.example.com:8080

Proxy URLs

socks5://host:port
socks5://user:pass@host:port
socks4://host:port
http://host:port
http://user:pass@host:port

Control API

s5p --api 127.0.0.1:1081 -c config/s5p.yaml    # enable API

curl -s http://127.0.0.1:1081/status | jq .     # runtime status
curl -s http://127.0.0.1:1081/metrics | jq .    # full metrics
curl -s http://127.0.0.1:1081/pool | jq .       # all proxies
curl -s http://127.0.0.1:1081/pool/alive | jq . # alive only
curl -s http://127.0.0.1:1081/config | jq .     # current config
curl -s -X POST http://127.0.0.1:1081/reload    # reload config
curl -s -X POST http://127.0.0.1:1081/pool/test # health test now

Testing

# Check exit IP
curl -x socks5h://127.0.0.1:1080 https://httpbin.org/ip

# Tor check
curl -x socks5h://127.0.0.1:1080 https://check.torproject.org/api/ip

# Verbose curl
curl -v -x socks5h://127.0.0.1:1080 https://example.com

# With timeout
curl --max-time 30 -x socks5h://127.0.0.1:1080 https://example.com

Profiling

# Enable in compose.yaml: uncomment the command line
python -m pstats s5p.prof                   # interactive stats viewer
python -m pstats ~/.cache/s5p/s5p.prof      # container profile output

Metrics Log

metrics: conn=1842 ok=1790 fail=52 retries=67 active=3 in=50.0M out=1.0G rate=4.72/s p50=198.3ms p95=890.1ms up=1h01m01s pool=42/65

Metrics JSON (/metrics)

curl -s http://127.0.0.1:1081/metrics | jq .
{
  "connections": 1842,
  "success": 1790,
  "rate": 4.72,
  "latency": {"count": 1000, "min": 45.2, "max": 2841.7, "avg": 312.4, "p50": 198.3, "p95": 890.1, "p99": 1523.6},
  "listener_latency": {
    "0.0.0.0:1080": {"count": 500, "p50": 1800.2, "p95": 8200.1, "...": "..."},
    "0.0.0.0:1081": {"count": 300, "p50": 1000.1, "p95": 3500.2, "...": "..."},
    "0.0.0.0:1082": {"count": 200, "p50": 400.1, "p95": 1200.5, "...": "..."}
  }
}

Per-listener latency also appears in /status under each listener entry.

Troubleshooting

Symptom Check
Connection refused Is Tor running? ss -tlnp | grep 9050
Timeout Increase -t, check proxy reachability
DNS leak Use socks5h:// (not socks5://) in client
Auth failed Verify credentials in proxy URL
Port in use fuser -k 1080/tcp to free the port
Proxy keeps failing Backoff penalizes for 60s; check pool= in metrics
"static chain unreachable" Tor/upstream hop is down; pool tests skipped
Slow startup Normal on cold start; warm restarts serve instantly from state