Chrome Error code: Err_unsafe_port

Recently in the use of Nginx published multiple site testing, using 87, 88 ports,

88 port access is normal, 87 port can not access,

Click More to prompt for error code: Err_unsafe_port

Unsecured port? Can only rely on the port to solve the problem of no installation?

If you do not want to modify the browser settings, use a different port, search, Firefox has similar port restrictions, if you do not want to use a similar port,

What we want to do is allow access to the very port address, workaround: Select Google Chrome shortcuts, right-click Properties, and in the "target" corresponding text box to add:

--explicitly-allowed-ports=87,6666,556,6667

Allow multiple ports to be separated by commas and end up as follows:

C:\Users\Huoqing\AppData\Local\Google\Chrome\Application\chrome.exe--explicitly-allowed-ports=6666,556

Appendix: Google Chrome Default non-secure port list, although the above method resolves the problem, it is recommended to avoid the following ports as far as possible:

  1,    // tcpmux  7,    // echo   9,    // discard  11,   // systat  13,    // daytime  15,   // netstat  17,    // qotd  19,   // chargen  20,   // ftp  data  21,   // ftp access  22,   // ssh   23,   // telnet  25,   // smtp  37,    // time  42,   // name  43,   //  nicname  53,   // domain  77,   // priv-rjs   79,   // finger  87,   // ttylink  95,    // supdup  101,  // hostriame  102,  // iso-tsap   103,  // gppitnp  104,  // acr-nema  109,  / / pop2  110,  // pop3  111,  // sunrpc  113,   // auth  115,  // sftp  117,  // uucp-path   119,  // nntp  123,  // ntp  135,  //  loc-srv /epmap  139,  // netbios  143,  // imap2   179,  // bgp  389,  // ldap  465,  //  smtp+ssl  512,  // print / exec  513,  //  login  514,  // shell  515,  // printer  526,   // tempo  530,  // courier  531,  // chat  532,   // netnews  540,  // uucp  556,  // remotefs   563,  // nntp+ssl  587,  // stmp?  601,   // ??   636,  // ldap+ssl  993,  // ldap+ssl  995,   // pop3+ssl  2049, // nfs  3659, // apple-sasl /  passwordserver  4045, // lockd  6000, // x11  6665, //  alternate irc [apple addition]  6666, // alternate irc [ apple addition]  6667, // standard irc [apple addition]   6668, // alternate irc [apple addition]  6669, // alternate  Irc [appLe addition] 

Chrome Error code: Err_unsafe_port