This indicates that port 80 (which is the Tomcat listening port) has been occupied by other programs. First, run the "netstat-ano" command to display the port status, and then find the port in the result, then, search for the corresponding program in the display of the input "tasklist" command based on its PID, And you
Apache port 80 occupation problems, apache80 port occupation
After installing mongodb today, apache cannot be started.
Command Line services. msc open the service
Start the Apache2a service in the service with the error code 1.
1 reported in many cases for online queries
You can use the command line to execute httpd.exe in apache bin for more information.
AH00548: NameVirtualHost has no effect and will be r
Configure listening _ 1521 port occupation, and listening _ 1521 port occupation
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Changed the host name from hyldb t
Set the open port of the CentOS firewall and the port of the centos FirewallWhen using CentOS, CentOS firewall sometimes needs to change the settings. The CentOS firewall is enabled by default. You can set the open port of the CentOS firewall as follows:
Open the iptables configuration file:Vi/etc/sysconfig/iptablesNote the following when modifying the CentOS fir
In Linux, you may encounter minor problems when configuring the firewall to enable port 80 and port 3306.Zookeeper
Vi/etc/sysconfig/iptables
-A input-m state-state NEW-m tcp-p tcp-dport 80-j ACCEPT (allow port 80 to pass the firewall)-A input-m state-state NEW-m tcp-p tcp-dport 3306-j ACCEPT (allow port 3306 to pass th
Modify the Tomcat port number method and the tomcat port number
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(1) Search for the server. xml file in the conf path. The path is
In ubuntu, Tomcat is bound to port 80, and ubuntutomcat is bound to port 80.
Reprinted from: http://www.cnblogs.com/mabaoqing/p/7808354.htmlA problem occurred when deploying your own small project. In the tomcat server. xml modification, the port 8080 was changed to port 80. When you restart tomcat to access it direct
Redboot IntroductionRedboot is designed for Embedded debugging and startup environments. It is an Ecos-based application that uses the hardware abstraction layer (HAL) of eCos as its basis. It is a basic function as bootloader, but can be used in any embedded system or any embedded real-time operating system. It can also be used for debugging during the product development cycle or for flash or network startup in published products. Features:
STARTUP script support;
Management and control of
Serial Port printing information can be added to any code to facilitate debugging. You do not have to have a printf statement. This can be implemented in a simple way. First, you need to complete the serial port register initialization, including the input and output enabling, data bit and stop bit, baud rate, interrupt priority, and so on.
Typedef unsigned char uchar;
(1) Output a single ASCII character. B
This is because you want to use Navicat to connect to the database and find that the connection is notBy looking at a lot of data and testing multiple times to find out because the firewall is not configured with Port 3306Words don't say, open the whole, similarly, 80 port is also configured, first enter the firewall configuration fileshell># Vim/etc/sysconfig/iptablesAdd the following two rules:-A input-m
I often use it to detect the remote Windows Server IP address, because it is not a fixed IP address, the server's IP address will often change, but there is a rule, only within a network segment changes, so that the determination of IP address to bring convenience.1. If Nmap is not installed, installYum Install-y Nmap2. Scan the Remote Desktop Connection port for the specified network segmentnmap-st-p3389 218.206.112.0/243. If you feel the output is t
CentOS View port occupancy commands, such as viewing 80 port occupancy Use the following command:
Lsof-i tcp:80List all ports
Netstat-ntlp1, open the Port method one:
/sbin/iptables-i input-p TCP--dport 80-j ACCEPT Write modify
/etc/init.d/iptables save modify
service Iptables Restart reboot firewall, modify to take effectMethod Two:
Vi/etc/sysconfig/iptab
We know, according to Ps-aux | grep xxx is to quickly realize the process name and process number of mutual check, so we only say process number PID on the line. In the following example, the process PID is resident.
1. According to process PID Check port:
Lsof-i | grep pid
2. According to the port search process (an interview has also been tested):
Lsof-i:port
3. According to process PID Check
Example of the multi-threaded Port Scan function implemented by python: python Port Scan
This example describes the multi-threaded port scanning function implemented by python. We will share this with you for your reference. The details are as follows:
The following program provides Python code for multi-thread scanning of a given ip host.
#!/usr/bin/env python#e
The following operations require root permissions Oh command: #/sbin/iptables-IINPUT-ptcp -- dport80-jACCEPT #/sbin/iptables-IINPUT-ptcp -- dport22-jACCEPT and then save: #/etc/rc. d/init. d/iptablessave
Command:
#/Sbin/
Iptables-I INPUT-p tcp -- dport 80-j ACCEPT
#/Sbin/iptables-I INPUT-p tcp -- dport 22-j ACCEPT
Then save:
#/Etc/rc. d/init. d/iptables save
If the above steps are not complete, it may be that the iptables file uses include call.
Generally, this path is/etc/sysconfig/iptables.
Session state requests cannot be made to the session-state server. Make sure that the ASP. NET State Service (ASP) is started and that the client port is the same as the server port. If the server is on a remote computer, please check the hkey_local_machine\system\currentcontrolset\services\aspnet_state\parameters\ The value of allowremoteconnection to ensure that the server accepts remote requests. If the
1, first find to occupy 8080 port process number PID is how muchCmd>netstat-ano | findstr 8080The last column of this command output indicates the number of process numbers that occupy port 8080, assuming 12342. Kill the Processcmd>taskkill/f/pid 1234This article is from the "Exist" blog, make sure to keep this source http://exist.blog.51cto.com/10305882/1967774Window7 known
Properties set in the control serial port
Cache size. It is recommended that the data received per second be more than 10 times
Important: this setting is important when the data volume received in the cache triggers a notification event. It is best to set no more than 10 trigger events per second. That is, when the amount of data received per second is 1000, set 100 ~ 400 trigger.
This problem is time-consuming. For later reference, the following is
Port 80 is occupied by system and port 80 is used by system
1. Run 'netstat-ano 'and find that port 80 is occupied by processes with pid = 4.
2. Open the task manager and find that the pid = 4 process is actually a system process. The process description is NT kernel system.
3. How to clear it? You need to use the registry, start-"regedit, open
4. Find the H
The ITV port can be used as a LAN port, but it needs to be verified that the All-in-one does not turn on the IPTV function. The confirmation method is as follows:
In the browser to enter the administrative address (default is 192.168.1.1), login to the integrated Computer Management interface, one machine has two styles of management interface:
Traditional interface
Click
IPTV
settings ,
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