try to access:systemctl stop firewalldsetenforce 0systemctl start httpd
The configuration file for a virtual Web host of multiple domain names and ports is in the regional configuration item under the installation directory, and its main form is as follows:Options followsymlinks//control options, allow use of symbolic linksAllowOverride None//Do not allow overlay configuration in the implicit control fileOrder Deny,allow//application
CABLE" to connect with COM ports, "Null modem CABLE" is roughly "crossed Modem line", and the crossover line means similar to the wire, which is used to "back-to-back" connection two DTE devices, Both ends are 9-pin D-type female connector, inserted into the management station and the server's COM mouth, in order to facilitate the identification of recommendations are the first COM port. This line can be made by itself, you can also go to the compute
How IIS modifies the 80 port
If you want to modify IIS without using the 80 method, it's easy to find in our IIS Manager, IIS management and then change 80 to 81.
Apache modifies the listening port by:
Open httpd.conf
Modify Listen 80 for L Second World collation release Isten 81
Apache can monitor more than one port at a time to implement multiple HTTP services
Just add a line like Listen 82
Similarly, IIS can modify the default port to avoid conflicts
The modification method is similar
When you start Apache today, it always prompts for failure, very simply, using Netstat-ano to discover that 80 ports are occupied. As shown in the figure:
According to PID: View the process name of PID in Task Manager
Since it is system. Then the real system should not be returned.
But the process of other products of Microsoft is running.
"Note: I have ended the IIS ADmin service in the service Services.msc"
But in fact the IIS service is
Typically, the registry port is configured:
-dcom.sun.management.jmxremote.port=9123
The RMI server port can also be configured after JDK7 and can be configured to be the same.
-dcom.sun.management.jmxremote.rmi.port=9123
But there is also a random port not resolved ... Or is this buddy persistent, finally opened the bugHttp://stackoverflow.com/questions/20884353/why-java-opens-3-ports-when-jmx-is-configuredRELATED LINKS
https://issues.apache.org/bu
8005
Turn off the Tomcat communication interface
8009
Communication interface with other HTTP servers for HTTP server collection
8080
Establish HTTP connections, such as browser access
Each tomcat needs a door-to-door set of ports.
If multiple tomcat is installed on the same operating system, you need to allocate 3 groups of 3 ports, a total of 9 different
A lot of users ask the most questions is: I use scanning software to sweep a machine on a number of open ports, but those ports in the end what is the use of Ah, today, I use a real scan to tell you the use of the port swept to you.
Swept host: 192.xxx.xx.x
Host IP number: 4
Security Vulnerabilities found: 7
Security Weaknesses: 45
System: Standard:solaris 2.x, Linux 2.1.???, Linux 2.2, MacOS
Telnet (23/TCP
User Access Verification
Password:
Idc-3750g-12s-01>ping 192.168.50.47
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.50.47, timeout is 2 seconds:
!!!!!
Success rate is percent (5/5), round-trip Min/avg/max = 1/1/1 ms
Hc-3750g-12s-01>sh ARP | In 192.168.50.47
Internet 192.168.50.47 2 0030.4825.4441 ARPA Vlan50
Idc-3750g-12s-01>sh mac address-table Dynamic address 0030.4825.4441
Mac Address Table
-------------------------------------------
Vlan Mac Address Ty
Tags: Linux nmap port scan network segmentLinux generally does not automatically install NMAP commands using the Yum-y install nmap installation nmap command, provided that you have configured the Yum source.Nmap Features:Host detectionPort scanVersion detectionSystem detectionSupports the authoring of probe scripts
Nmap Command Detailed
nmapip_address #nmap默认发送一个arp的ping数据包 to detect all open ports in the target host 1-10000 range [[ema
Modify the port of the SSH Terminal Service from 22 to another port to prevent attackers from directly guessing your server passwordFirst modify the configuration fileVi/etc/ssh/sshd_configFind #Port 221 segment, here is the identity by default using 22 port, modified as follows:
Port 22
Port 5555
And then save the exitExecution /etc/init.d/sshd Restartthis way the SSH port will work concurrently with the A and the 5555 on. now edit the firewall configuration: Vi/etc/sysconfig/ip
Install a software today, need to use 80 port, the result service has been unable to start, found that 80 ports have been occupied, such as:650) this.width=650; "title=" QQ picture 20160712100940.jpg "style=" Float:none; "src=" http://s5.51cto.com/wyfs02/M01/84/09 /wkiom1eeuxvikjxmaaeiyh3-bla432.jpg-wh_500x0-wm_3-wmp_4-s_88578658.jpg "alt=" Wkiom1eeuxvikjxmaaeiyh3-bla432.jpg-wh_50 "/>650) this.width=650; "title=" QQ picture 20160712100955.jpg "style="
Open VNC features and ports in VMWare ESXi for remote Management complete ChapterIn a number of forums to read the relevant articles, the total write is not complete. We will write the full version of all the resources. Detailed text is as follows!Step 1. Modify Firewall configuration for ESXi hostsin the In the/etc/vmware/firewall directory of the ESXi host , add the VNC firewall configuration file,vnc.xml, which reads as follows:(Ignore this line Vi
Memcache installation is very simple, by default, anyone can access the cached data on the server, so it is very insecure if not processed (there are many issues related to this in the dark cloud)1. First make sure that the firewall on the server is open2. Set allow Memcache to pass through the firewall"Allow programs or features through Windows Firewall" = "Allow another program to run" = "Browse" to select the downloaded Memcache.exe3. Set inbound rules (that is, set accessible
Tags: proc EPO process theory sys tin default reporting otherServer planning: Apache assigns 80,iis to allocate additional portsIn theory, you just need to change the IIS default site's 80 port to another port, but found that changing the apache80 port or not,CMD checked, found that the system process occupies 80 ports, process id=4, after some toss discovery, this is the HTTP service, with the system boot,End the HTTP service can, but every time the
Sometimes it is necessary to look at a process that takes up that port, but only knows the approximate name of the process, such as which port the Namenode of Hadoop is running on, in order to connect in eclipse. A method is as follows, may compare rubbing, please daniel advice!First, use the PS command to view the process ID:[HTML]View Plaincopy
$ PS-EF | grep Name
The second field in which each row (a long time takes up several rows) is the ID of the process.Of course, for a proc
Win7 the system to share files, do not want others to access the other port content through this port. You can prevent other hosts from accessing certain ports on this computer by Win7 the system's firewall.
First, take a look at inbound rules and outbound rules: Inbound is someone else visiting you, outbound is you visiting others.
Turn on Control Panel-"system and Security"-"Windows Firewall." Click Advanced Settings on the left panel to appear in
turning off unnecessary network ports can effectively protect network security, so do you know how to shut down these network ports ?
We can enter the service and close the corresponding port in the following way.
Turn off Port 7.9: Close Simple TCP/IP service and support the following TCP/IP services: Character generator, daytime, discard, Echo, and Quote of the day.
Turn off 80: Turn off the WWW
First of all, to declare this function, personal feeling is not very useful, because most of the time we have to bring the system from the firewall closed. Like small series is certainly closed, because small weave sometimes in the local area network and other people connected to the net, if no matter the system with the firewall then I have no way to play. So the following is about the use of Win7 firewall settings to prevent access to the local port is not practical.
1
Open firewall fire has
There is a project that uses the PC104 board (PCM-3341), the Linux system.
But at least 3 RS232 in the project, see Datasheet, enough. The board has 3 separate RS232 and a rs232/485 multiplexing port. But in the actual test use, encountered a problem. 1 and 2 can work (later found to be problematic, reading sensor data, reading is not complete), but 3 and 4 have appeared very strange phenomenon.
The main performance is:
1. Can input output
2. Input and output rate is very slow
3. Found that
behavior occurs. So unloading load, all default, fault still.
5, installation version of the problem;
Viewing the installation CD is a time-tested installation disk and should not be problematic.
6, the problem of the system;
Can not see what other problems, is the system of the problem? But reloading the system can be too much trouble, or think of other ways to see if you can find the problem.
Check the system log, this should be a better habit. After a careful look over the reinstall log
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