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seclab-ucr / INTANG

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[ERROR] Send keep alive packet failed. errno: 32 #23

Open yyun543 opened 6 years ago

yyun543 commented 6 years ago

When I run INTANG, I can't Ping Google. cat /var/log/intangd.log

1511877429.351735 [INFO] Current version: 7 1511877429.351822 [INFO] Starting redis server. 1511877429.374581 [INFO] Building sync connection with redis server. 1511877429.374718 [INFO] Sync connection built successfully. 1511877429.374744 [INFO] Connecting to TCP DNS server. 1511877429.374839 [INFO] Loading historical results from redis. 1511877429.375098 [INFO] Loading TTL from redis. 1511877429.375215 [INFO] Async connection built successfully. 1511877429.832840 [INFO] Connected to TCP DNS server. 1511877445.847894 [ERROR] Send keep alive packet failed. errno: 32 1511877445.847988 [INFO] Connecting to TCP DNS server. 1511877445.941228 [INFO] Connected to TCP DNS server. 1511877527.885332 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_3254_3018320055_20480_11 1511877588.039548 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_41401_542641785_20480_10 1511877617.924538 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_17822_542641785_20480_6 1511877650.620333 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_65208_1215242864_20480_12 1511877653.327750 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_2233_1215242864_20480_17 1511877720.714658 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_2745_1215242864_20480_24 1511877721.466569 [INFO] [EVAL] STRATEGY SUCCEEDED. 3289426112_3257_1215242864_20480_17 /tmp/INTANG-master/src/dns.c send_keep_alive_packet() error,How can I solve this problem?

ghost commented 6 years ago

https://github.com/seclab-ucr/INTANG/issues/4#issuecomment-341669683

Please be advised:

  • Google/Twitter/Facebook are now IP-blocked by the GFW, our approach is focusing on evading connection RST attack. IP-blocking can be only bypassed with the help of proxy-like infrastructure, e.g. proxy, VPN, decoy routing.
  • Dropbox can be visited with our tool, but you may need to enable DNS forwarding by editing the main.c file. specifically turning on the "opt_protect_dns_protocol" option. Because Dropbox is not IP-blocked but only DNS poisoned.
  • The main use case of INTANG and TCP-layer censorship evasion techniques are to prevent the GFW from performing Deep Packet Inspection on your traffic, and circumvent content detection/filtering.