我最近搭了個環境，用的 6666 端口，然後發現一個奇怪的現象 chrome 怎麼訪問都顯示沒有這個環境，但是本地的 ie 瀏覽器就可以訪問到，後來想起來，chrome 瀏覽器有一些自保留端口，跳過這些端口就好了。
chrome 瀏覽器自保留端口如下：
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]
喜歡的點個贊❤吧！