Table 50 Ports Blocked By Default In Firefox - ZyXEL Communications NSA-220 User Manual

• Web publishing uses TCP protocol and the port number you specify. Make sure there is
not another service using TCP protocol with the same port number. See
page 187
• If Firefox access to the share does not work, check that you did not set the Web publishing
feature to use one of the following ports. (Firefox blocks these ports by default.)

Table 50 Ports Blocked By Default in Firefox

PORT SERVICE
1 tcpmux
7 echo
9 discard
11 systat
13 daytime
15 netstat
17 qotd
19 chargen
20 ftp data
21 ftp control
22 ssh
23 telnet
25 smtp
37 time
42 name
43 nicname
53 domain
77 priv-rjs
79 finger
87 ttylink
• Make sure your ISP allows you to run a server and is not blocking the port number of the
NSA's web publishing feature.
NSA-220 User's Guide
for a list of common services and their associated protocols and port numbers.
PORT SERVICE
95
101
102
103
104
109
110
111
113
115
117
119
123
135
139
143
179
389
465
512
Chapter 15 Troubleshooting
supdup
hostriame
iso-tsap
gppitnp
acr-nema
POP2
POP3
sunrpc
auth
sftp
uucp-path
NNTP
NTP
loc-srv epmap
netbios
IMAP2
BGP
LDAP
SMTP+SSL
print exec
Appendix C on
PORT SERVICE
513 login
514 shell
515 printer
526 tempo
530 courier
531 chat
532 netnews
540 uucp
556 remotefs
563 NNTP+SSL
587 submission
601 syslog
636 LDAP+SSL
993 IMAP+SSL
995 POP3+SSL
2049 nfs
4045 lockd
6000 X11
153