基准配置

• 连接到目标服务器：

  netcat eth --user user --port 88

  这会连接到指定的网络接口（eth）上的 port 88（默认端口）。

• 设置端口：

  echo "Port 88" >> sysctl.conf/sysports
  sysctl --ports 88

• 设置端口规则：

  echo "Port 88" >> sysctl.conf/sysports
  sysctl --ports 88

设置防火墙

• 启用防火墙：

  iptables -t pecho -A INPUT -p 88/881/882/883/884/885/886/887/888/889/89/891/892/893/894/895/896/897/898/899/81/811/812/813/814/815/816/817/818/819/811/8111/8112/8113/8114/8115/8116/8117/8118/8119/812/8121/8122/8123/8124/8125/8126/8127/8128/8129/813/8131/8132/8133/8134/8135/8136/8137/8138/8139/814/8141/8142/8143/8144/8145/8146/8147/8148/8149/815/8151/8152/8153/8154/8155/8156/8157/8158/8159/816/8161/8162/8163/8164/8165/8166/8167/8168/8169/817/8171/8172/8173/8174/8175/8176/8177/8178/8179/818/8181/8182/8183/8184/8185/8186/8187/8188/8189/819/8191/8192/8193/8194/8195/8196/8197/8198/8199/82/821/822/823/824/825/826/827/828/829/821/8211/8212/8213/8214/8215/8216/8217/8218/8219/822/8221/8222/8223/8224/8225/8226/8227/8228/8229/823/8231/8232/8233/8234/8235/8236/8237/8238/8239/824/8241/8242/8243/8244/8245/8246/8247/8248/8249/825/8251/8252/8253/8254/8255/8256/8257/8258/8259/826/8261/8262/8263/8264/8265/8266/8267/8268/8269/827/8271/8272/8273/8274/8275/8276/8277/8278/8279/828/8281/8282/8283/8284/8285/8286/8287/8288/8289/829/8291/8292/8293/8294/8295/8296/8297/8298/8299/83/831/832/833/834/835/836/837/838/839/831/8311/8312/8313/8314/8315/8316/8317/8318/8319/832/8321/8322/8323/8324/8325/8326/8327/8328/8329/833/8331/8332/8333/8334/8335/8336/8337/8338/8339/834/8341/8342/8343/8344/8345/8346/8347/8348/8349/835/8351/8352/8353/8354/8355/8356/8357/8358/8359/836/8361/8362/8363/8364/8365/8366/8367/8368/8369/837/8371/8372/8373/8374/8375/8376/8377/8378/8379/838/8381/8382/8383/8384/8385/8386/8387/8388/8389/839/8391/8392/8393/8394/8395/8396/8397/8398/8399/84/841/842/843/844/845/846/847/848/849/841/8411/8412/8413/8414/8415/8416/8417/8418/8419/842/8421/8422/8423/8424/8425/8426/8427/8428/8429/843/8431/8432/8433/8434/8435/8436/8437/8438/8439/844/8