How to use random exit nodes

curl -x proxy.gaofengxt.cn:20001 \
  -U "ipx_demo8f2k-zone-mob-region-hangzhou:YOUR_PASSWORD" \
  https://ipinfo.io/ip

for i in 1 2 3 4 5; do
  curl -s --http1.1 \
    -H 'Connection: close' -H 'Proxy-Connection: close' \
    -x proxy.gaofengxt.cn:20001 \
    -U "ipx_demo8f2k-zone-mob-region-hangzhou:YOUR_PASSWORD" \
    https://ipinfo.io/ip
  echo
done

REGIONS=(hangzhou ningbo)
REGION=${REGIONS[$((RANDOM % ${#REGIONS[@]}))]}

curl -s --http1.1 -H 'Connection: close' \
  -x proxy.gaofengxt.cn:20001 \
  -U "ipx_demo8f2k-zone-mob-region-$REGION:YOUR_PASSWORD" \
  https://ipinfo.io/ip

#!/usr/bin/env bash
# Random-exit self test: pick a random exit region per connection, print the real exit IP, then summarise.
set -u

# 1. Gateway address (HTTP port). The console is the source of truth.
PROXY_ADDRESS=${PROXY_ADDRESS:-proxy.gaofengxt.cn:20001}
# 2. Username prefix = your proxy account + the fixed -zone-mob-region
PROXY_USER_PREFIX=${PROXY_USER_PREFIX:-ipx_demo8f2k-zone-mob-region}
# 3. Exit regions to randomise over, comma separated
REGIONS=${REGIONS:-hangzhou,ningbo}
# 4. Number of connections
COUNT=${COUNT:-10}
# 5. Per-connect and overall timeout in seconds
CONNECT_TIMEOUT=${CONNECT_TIMEOUT:-10}
MAX_TIME=${MAX_TIME:-20}
# 6. Probe URL. It must return a plain-text IP.
TEST_URL=${TEST_URL:-https://ipinfo.io/ip}

# Read the password from the environment only. Never commit it.
if [ -z "${PROXY_PASSWORD:-}" ]; then
  printf 'Error: set the PROXY_PASSWORD environment variable first.\n' >&2
  exit 2
fi

case "$COUNT" in
  ''|*[!0-9]*|0)
    printf 'Error: COUNT must be an integer greater than 0.\n' >&2
    exit 2
    ;;
esac

# Split the comma-separated regions into an array
old_ifs=$IFS
IFS=',' read -r -a region_list <<< "$REGIONS"
IFS=$old_ifs
region_count=${#region_list[@]}

if [ "$region_count" -eq 0 ]; then
  printf 'Error: REGIONS needs at least one region.\n' >&2
  exit 2
fi

# Temp file holds every region + exit IP pair; removed on exit
results_file=$(mktemp "${TMPDIR:-/tmp}/proxy-exit-ip.XXXXXX") || exit 1
trap 'rm -f "$results_file"' EXIT

successful=0
failures=0

printf 'gateway: %s\n' "$PROXY_ADDRESS"
printf 'exit regions: %s\n' "$REGIONS"
printf 'connections: %s\n\n' "$COUNT"

for ((attempt = 1; attempt <= COUNT; attempt++)); do
  # Pick a random exit region. No -session- in the username means rotating mode.
  region=${region_list[$((RANDOM % region_count))]}
  proxy_username="${PROXY_USER_PREFIX}-${region}"

  # --http1.1 + Connection: close force a fresh connection; a reused one keeps the same exit
  response=$(curl \
    --silent --show-error --fail --http1.1 \
    --connect-timeout "$CONNECT_TIMEOUT" \
    --max-time "$MAX_TIME" \
    -H 'Connection: close' \
    -H 'Proxy-Connection: close' \
    -x "$PROXY_ADDRESS" \
    -U "$proxy_username:$PROXY_PASSWORD" \
    "$TEST_URL" 2>&1)
  curl_status=$?

  if [ "$curl_status" -ne 0 ]; then
    failures=$((failures + 1))
    printf '[%03d/%03d] region=%-10s failed curl=%d: %s\n' \
      "$attempt" "$COUNT" "$region" "$curl_status" "$response"
    continue
  fi

  # Plain-text IP: trim whitespace, then check only digits and dots remain
  exit_ip=$(printf '%s' "$response" | tr -d '[:space:]')
  case "$exit_ip" in
    ''|*[!0-9.]*)
      failures=$((failures + 1))
      printf '[%03d/%03d] region=%-10s failed: the probe URL did not return a plain-text IP\n' \
        "$attempt" "$COUNT" "$region"
      continue
      ;;
  esac

  successful=$((successful + 1))
  printf '%s\t%s\n' "$region" "$exit_ip" >> "$results_file"
  printf '[%03d/%03d] region=%-10s exit_ip=%s\n' \
    "$attempt" "$COUNT" "$region" "$exit_ip"
done

# More unique region/exit-IP pairs means more distinct devices were used
if [ "$successful" -gt 0 ]; then
  unique_pairs=$(sort -u "$results_file" | wc -l | tr -d ' ')
else
  unique_pairs=0
fi

printf '\nsummary: ok=%d failed=%d unique region/exit-IP pairs=%d\n' "$successful" "$failures" "$unique_pairs"

if [ "$successful" -gt 0 ]; then
  sort "$results_file" | uniq -c | awk '{
    printf "  region=%s exit_ip=%s hits=%d\n", $2, $3, $1
  }'
fi

# Exit 1 when anything failed so CI and monitors can react
if [ "$failures" -gt 0 ]; then
  exit 1
fi