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  • Stunnel

    1.更新软件包信息

    apt-get update

    2.下载stunnel

    apt-get install stunnel

    3.进入这个目录之后会看到有一个配置文件 /usr/share/doc/stunnel4/examples/stunnel.conf-sample

    cd /etc/stunnel

    4.将该配置文件备份

    cp /usr/share/doc/stunnel4/examples/stunnel.conf-sample stunnel.conf

    5.修改当前的这个配置文件

    首先指定 cert 和 key:

    cert = /etc/stunnel/stunnel.pem
    key = /etc/stunnel/stunnel.pem

    这个key文件(“stunnel.pem”)我们稍后生成。

    然后注释掉所有的默认服务,而只保留[https]这一节,不过我这里把https里的connect端口设置为了8443,这里的意思就是,Stunnel会在这台主机上监听443端口,并将连接转到8443端口上。所以你的主机上需要在8443端口有一个服务。而这个服务,稍后我们将安装一个Squid来提供。

    ;[pop3s]
    ;accept  = 995
    ;connect = 110
    
    ;[imaps]
    ;accept  = 993
    ;connect = 143
    
    ;[ssmtp]
    ;accept  = 465
    ;connect = 25
    
    [https]
    accept  = 443
    connect = 8443
    ;TIMEOUTclose = 0
    

    其他配置方面,可以先打开详尽的日志记录以方便调试:

    ; Some debugging stuff useful for troubleshooting
    debug = 7
    output = /var/log/stunnel4/stunnel.log
    

    测试完毕后,建议将上面的 “debug = 7″ 注释掉(顺便提及,注释就是用‘;‘开头的行),或者修改为5以下的数值。保留在7会产生大量的日志,日志文件很快就会变的很大。

    另外,默认配置文件是采用了chroot机制,如下所示,这段不需要修改,使用起来没有问题:

    ; Some security enhancements for UNIX systems - comment them out on Win32
    chroot = /var/lib/stunnel4/
    setuid = stunnel4
    setgid = stunnel4
    ; PID is created inside the chroot jail
    pid = /stunnel4.pid
    

    这就是Stunnel的配置文件,本身就是很简单的一个配置文件,主要就是设置了一下key文件的路径,然后指定了服务端口。

    不过除此之外,还要修改一个地方:

    # cd /etc/default
    # vi stunnel4
    

    这里要设置为ENABLED=1,默认是不使能stunnel服务的:

    # Change to one to enable stunnel automatic startup
    ENABLED=1

    5.生成key并启动Stunnel服务

    启动stunnel服务之前,需要生成一组密钥:

    # cd /etc/stunnel
    # openssl req -new -nodes -x509 -out stunnel.pem -keyout stunnel.pem

    运行命令后,终端上会有几个问题需要你输入你的设定,基本没有什么意义,自己随便给吧:

    root@czy-virtual-machine:/etc/stunnel# openssl req -new -nodes -x509 -out stunnel.pem -keyout stunnel.pem  
    Generating a 2048 bit RSA private key
    ..............................................+++
    ..........................................+++
    writing new private key to 'stunnel.pem'
    -----
    You are about to be asked to enter information that will be incorporated
    into your certificate request.
    What you are about to enter is what is called a Distinguished Name or a DN.
    There are quite a few fields but you can leave some blank
    For some fields there will be a default value,
    If you enter '.', the field will be left blank.
    -----
    Country Name (2 letter code) [AU]:CN
    State or Province Name (full name) [Some-State]:XM
    Locality Name (eg, city) []:XM
    Organization Name (eg, company) [Internet Widgits Pty Ltd]:XM
    Organizational Unit Name (eg, section) []:XM
    Common Name (e.g. server FQDN or YOUR name) []:Evelyn
    Email Address []:Evelyn@ursalink.com
    

     

     

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  • 原文地址:https://www.cnblogs.com/chenxiaomeng/p/13542376.html
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