linux iptables strudy

#iptables study ref.
http://seanlook.com/2014/02/23/iptables-understand/

安裝 shadowsock server

Synology DSM6.21

#介紹
https://zh.wikipedia.org/wiki/Shadowsocks

#git位置 shadowsock python
https://github.com/dgkang/shadowsocks-python


1.先安裝 python2 or python3皆可

2.安裝 python套件包 pip  (ubuntu:apt-get install python-pip)
wget https://bootstrap.pypa.io/get-pip.py
python get-pip.py
https://bootstrap.pypa.io/

3.pip 安裝 shadowsocks
pip install shadowsocks

4.
vi /etc/shadowsocks.json

{

    "local_address": "127.0.0.1",
    "local_port":1080,
    "port_password":{
    "6655":"nguguest",
    "8080":"nguguest"
    },
    "timeout":600,
    "method":"aes-256-cfb",
    "fast_open":false
}

其中
    "port_password":{
    "6655":"nguguest",
    "8080":"nguguest"
    },
是設定server port 對應的 password
這邊沒有設定serverIP 因為不需要

5.

*ssserver -c /etc/shadowsocks.json遇到error
RuntimeError: can not find library crypto 

參考http://anamewing.blogspot.com/2017/03/python-shadowsocks.html

自行修改/usr/lib/python2.7/ctypes/util.py

拿個發行版的來取代

*遇到Exception: libcrypto(OpenSSL) not found
參考https://ningselect.com/2018/05/01/synologyshadowsocks
修改 註解掉以下紅色四行
sudo vi /usr/lib/python2.7/site-packages/shadowsocks/crypto/util.py

 56     for name in lib_names:

 57         if os.name == "nt":

 58             paths.extend(find_library_nt(name))

 59 #        else:

 60 #            path = ctypes.util.find_library(name)

 61 #            if path:

 62 #                paths.append(path)

*

2020 update
最近重裝遇到另一個新error
TypeError: find_library() takes exactly 1 argument (3 given)

  File "/usr/lib/python2.7/site-packages/shadowsocks/crypto/openssl.py", line 41, in load_openssl

    raise Exception('libcrypto(OpenSSL) not found')

Exception: libcrypto(OpenSSL) not found

sudo -i 後進入root即可
ssserver -c /etc/shadowsocks.json -d start
(我直接sudo 不能，應該是lib path 的問題，沒有繼續trace)

6.連線試試 後臺啟動

ssserver -c /etc/shadowsocks.json -d start

ssserver -c /etc/shadowsocks.json -d stop
ssserver -c /etc/shadowsocks.json -d restart