Chrome browser error: err_ UNSAFE_ PORT

Today, I opened a page with Chrome browser and found an error: err_ UNSAFE_ PORT

So, after a search, it is found that Chrome browser defaults to some non secure ports

In case of this problem, it is recommended to change the port number or change the browser to open

The following is a record of some port numbers restricted by Chrome browser:

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]

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