1. You can see which ports are open by "~$ NETSTAT-ANP".
(Note: The parameter '-n ' will turn the application to the port display, that is, the number format of the address, such as: nfs->2049, ftp->21, so you can open two terminals, each corresponding to the program corresponding to the port number)
2. The program that applies the port can then be viewed through
Centos remote SSH port 22 is changed to another port by default
Modify the default SSH port:
1. The file controlling the SSH access port is/etc/ssh/sshd_config.
Therefore, edit the SSH configuration file sshd_config:
# Vi/etc/ssh/sshd_config
2. Find the Port = 22 field and
Node. js implements port forwarding and node. js port forwarding
This article shares the node. js port forwarding implementation code for your reference. The specific content is as follows:
#!/sbin/node var net = require('net'); function proxyPort(srcport,destServer,destport){ var server = net.createServer(function(c) { //'connection' listener c.on('end', fu
How to disable port 445 for win10 family edition and port 445 for win10 family Edition
Closing the port only reduces the chance of computer poisoning. to completely prevent virus intrusion, install system patches and fix system vulnerabilities. You 'd better upgrade the latest win10 originality system.
Open Control Panel, win + x select control panel or search
Server device, if a domain name is requested, the port is pointing to port 80 by default, but more of our services are posted in tomcat and more 8080 ports are usedAs we all know, the server installation Nginx can do port mapping, and then set the service to the desired place.Job requirements, to provide a scenario that does not need to install Nginx, the 80
See how much the FTP default port is
Sometimes we need to look at the default port for a service, it's good to do under Linux, no need to search the Internet, the direct view of the "/etc/server" file can meet the demand. There is a mapping between the port number and the service.
For example, we'd like to see the port
Serial Port and Port:
The serial port receives and sends one bit at a time, and the multiple data paths are sent or received simultaneously, and the port does not necessarily have a higher efficiency than the serial port; The name contains the meaning of the serial
The following is an example of Z-tek (USB2.0) to a serial adapter (model ZK-U03-2A):
1, according to the requirements of the installation of the adapter driver, "Device Manager/Port", you can find a "USB serial Port (COM4)", the following figure:
2, right click on "USB serial Port (COM4)", select "Properties", as shown:
3, select the "
Using SSH over the HTTPS portSometimes, firewalls refuse to allow SSH connections entirely. If using HTTPS cloning with credential caching are not a option, you can attempt to clone using an SSH connection made Ove R the HTTPS port. Most firewall rules should allow this, but proxy servers may interfere.GitHub Enterprise Users:accessing GitHub Enterprise via SSH over the HTTPS port was currently not supporte
See here: http://blog.csdn.net/j2eevic/article/details/7301027
I was modified 8080 for 8089 port
Due to the 8080 port number being occupied by other projects, the modification of the next ofbiz default port number (8080,8443) is analyzed today. Find that only two files need to be modified, or relatively simple.
1.8080 and 8443 ports in the following sections in
Important thing to say three times, it is strongly recommended to use the second Method! Second Method!;Ways to open ports:Method One: Command line mode1. Open port command:/sbin/iptables-i input-p TCP--dport 8080-j ACCEPT2. Save:/etc/rc.d/init.d/iptables Save3. Restart Service:/etc/init.d/iptables restart4. Check if the port is open:/sbin/iptables-l-NMethod Two: Directly edit the/etc/sysconfig/iptables fil
Important thing to say three times, it is strongly recommended to use the second Method! Second Method!;Ways to open ports:Method One: Command line mode1. Open port command:/sbin/iptables-i input-p TCP--dport 8080-j ACCEPT2. Save:/etc/rc.d/init.d/iptables Save3. Restart Service:/etc/init.d/iptables restart4. Check if the port is open:/sbin/iptables-l-NMethod Two: Directly edit the/etc/sysconfig/iptables fil
Copyright NOTICE: This article is for bloggers original article, if need reprint please indicate source and author.This article by Xiao Li column original, reprint need to indicate the source: "http://blog.csdn.net/softwave/article/details/8907599"A recent project that requires Java to read a small pound of data in a pound room requires that Java be used to communicate with the serial port. Serial port Java
I am working on a plug-in recently.ProgramTo obtain data from other programs from the serial port, but the problem is that the serial port is exclusively used, that is, only one program can read or send data to the serial port.
So how can I obtain the same serial port data from other programs without shutting down oth
Use the accelerator key win+r to open the Run window. Enter CMD return to open a command prompt window
1: View the port that is open for this machine, that is, the number of ports that have been occupied. Command:
Netstat-an
Partial results list:
Proto Local Address Foreign
TCP 0.0.0.0:135 0.0.0.0:0 Listening
TCP 0.0.0.0:3473 0.0.0.0:0 Listening
TCP 0.0.0.0:8009 0.0.0.0:0 Listening
The local addresss corresponds to this column, ":" is the open
In Windows, how does one find and use port and release port?
Introduction: during daily work, when an application is started, the system prompts that the xxx port is occupied and the application cannot be started normally. How can I find an application that occupies a specific port and release it? This document descri
Release ttys0 as the communication serial port
# Include # Include # Include # Include # Include # Include Void closeconsole (void ){
Int FP;Struct termios options;Printf ("Change1 \ n ");Fp = open ("/dev/tty1", o_rdonly); // change the ConsoleIOCTL (FP, tioccons );Close (FP );
Fp = open ("/dev/TTS/0", o_rdwr | o_noctty | o_ndelay); // open the serial port 0 for reading and writingIf (FP =-1) Exit (0 );Tcge
Mysql opens remote port 15.04 and port 3306 in ubuntu 15.043306.
Ubuntu 15.04 opens mysql remote port 3306. All of the following operations are performed in the terminal.
First, check whether netstat-an | grep 3306 is enabled on the port.
This figure shows that port 330
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.