"Well Known" TCP and UDP ports used by Apple software products


 
Thread Tools Search this Thread
Operating Systems OS X (Apple) OS X Support RSS "Well Known" TCP and UDP ports used by Apple software products
# 1  
Old 10-21-2008
"Well Known" TCP and UDP ports used by Apple software products

This article lists TCP and UDP ports used by Apple products, such as Mac OS X, Mac OS X Server, AppleShare IP, Network Assistant, Apple Remote Desktop, Macintosh Manager, and MobileMe. Many of these are referred to as "well known," industry standard ports.

More from Apple OS X Support ...
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

2. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

3. AIX

How to enable "TCP MD5 Signatures" and "https" on AIX?

I have searched many times but nothing found. Somebody help please :(:(:( (1 Reply)
Discussion started by: bobochacha29
1 Replies

4. Red Hat

/var/log/messages error "kernel: RPC: bad TCP reclen"

Hi, I am seeing the following errors in my environment, not sure why is it happening, any ideas? Thanks. kernel: RPC: bad TCP reclen 0x73746174 (non-terminal ) Dec 17 02:14:48 kernel: RPC: bad TCP reclen 0x63480000 (large) Dec 17 02:14:48 kernel: RPC: bad TCP reclen 0x633f0000 (large) Dec... (5 Replies)
Discussion started by: amarlinux
5 Replies

5. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

6. IP Networking

Configure a range of ports to "socket" system call

Hello ; This what i want to do : I know that in the system call #include <sys/socket.h> int bind(int socket, const struct sockaddr *address, socklen_t address_len); you can specify the local port for your socket, but im using a private library , and im sure that in that library... (0 Replies)
Discussion started by: trutoman
0 Replies

7. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies

8. IP Networking

TCP/UDP Ports

Just wondering if anyone knows of any good on-line documentation on TCP/UDP Ports. Basically i want to know how to check if they are in use, learn how to close them, etc... Thanks... (5 Replies)
Discussion started by: eugene_mayo
5 Replies

9. UNIX for Dummies Questions & Answers

TCP/UDP Ports

Just starting to work with unix, wondering if there is any good on-line documentation explaining TCP/UDP ports, how to use them, etc... Thanks.... (1 Reply)
Discussion started by: eugene_mayo
1 Replies
Login or Register to Ask a Question
BLACKHOLE(4)						   BSD Kernel Interfaces Manual 					      BLACKHOLE(4)

NAME
blackhole -- a sysctl(8) MIB for manipulating behaviour in respect of refused TCP or UDP connection attempts SYNOPSIS
sysctl net.inet.tcp.blackhole[=[0 | 1 | 2]] sysctl net.inet.udp.blackhole[=[0 | 1]] DESCRIPTION
The blackhole sysctl(8) MIB is used to control system behaviour when connection requests are received on TCP or UDP ports where there is no socket listening. Normal behaviour, when a TCP SYN segment is received on a port where there is no socket accepting connections, is for the system to return a RST segment, and drop the connection. The connecting system will see this as a ``Connection refused''. By setting the TCP blackhole MIB to a numeric value of one, the incoming SYN segment is merely dropped, and no RST is sent, making the system appear as a blackhole. By setting the MIB value to two, any segment arriving on a closed port is dropped without returning a RST. This provides some degree of protection against stealth port scans. In the UDP instance, enabling blackhole behaviour turns off the sending of an ICMP port unreachable message in response to a UDP datagram which arrives on a port where there is no socket listening. It must be noted that this behaviour will prevent remote systems from running traceroute(8) to a system. The blackhole behaviour is useful to slow down anyone who is port scanning a system, attempting to detect vulnerable services on a system. It could potentially also slow down someone who is attempting a denial of service attack. WARNING
The TCP and UDP blackhole features should not be regarded as a replacement for firewall solutions. Better security would consist of the blackhole sysctl(8) MIB used in conjuction with one of the available firewall packages. This mechanism is not a substitute for securing a system. It should be used together with other security mechanisms. SEE ALSO
ip(4), tcp(4), udp(4), ipf(8), ipfw(8), pfctl(8), sysctl(8) HISTORY
The TCP and UDP blackhole MIBs first appeared in FreeBSD 4.0. AUTHORS
Geoffrey M. Rehmet BSD
January 1, 2007 BSD