Because there are too many services, there are also many corresponding ports. Here, we only briefly describe some commonly used services and corresponding ports, and arrange the order in ascending order, each item starts with "port type: port number" (for example, "TCP: 10000 ").
TCP20: used for FTP data transmission. For the FTP transmission mode in active mode (PORT), see the illustration of FTP active
1. What is gpio?
The full name of gpio is general-purpose Io ports, that is, general input and output ports.
In embedded systems, many simple external devices or Circuits need to be controlled. Some of these devices need to be controlled by the CPU, and some need the CPU to provide the input signal. In addition, as long as many devices or circuits require an on/off two shaped bodies, such as LED light and o
Batch add firewall exception ports in Windows
Copy codeThe Code is as follows: echo off
Cls
Set var = 30000
Set end = 30010
: Continue
Set/a var + = 1
Echo add port % var %
Netsh firewall add portopening TCP % var % ftp_data _ % var %
If % var % lss % end % goto continue
Echo complete
Pause
The following article highlights that you can manually add them in order or batch output them through batch processing such as vbs js.For example, the following
When mounting NFS, You need to activate the access permissions for those ports.Mount 10.12.13.11:/vol/lft_jjmk/mntUnable to mount, because the network has a limited permission configuration, in order to find out which ports need to be activated to mount nfs, the following attempt is made here.After you have knocked on the command, you are in the waiting status.Mount 10.12.13.11:/vol/lft_jjmk/mntOpen another window at the same time. Run netstat-[Root @
[Translation from mos] How does OracleGoldenGate allocate ports between the source transmission process and the target server/collector process?How Does Oracle GoldenGate allocate ports between the source transmission process and the target server/collector process?Source:How Does GoldenGate Allocates Ports between Source Extract Pump and Target Server/Collector?
WIN8 System 80 ports are occupied how to solve?
Solution One
1, open the command prompt-netstat-ano, you can view the local port opening and corresponding procedures;
2, it can be seen that 21, 25 and 80 ports are PID (process identifier) is: 5668 of the process occupied. Now, as long as you know the PID is 5668 of the process can be resolved;
2, open Task Manager, you can see pid:5668 corr
-byte protocol identifier (TPID). When the prefix 0 x is fixed, it indicates that the frame carries the mark information of 802.1Q.Two bytes of tag control information (TCI), including three fields.Priority domain, which occupies 3 bits, indicates the Priority of the message. values 0 to 7 are the highest Priority, and 0 is the lowest Priority. This domain is used by 802.1p.Standard Format Indicator (CFI) domain, 1bit, 0 indicates standard format, used in Ethernet; 1 indicates non-standard forma
Using Linux Shell to disable host ports in LAN in batches
Assume that there are multiple hosts in the LAN, and only the ssh service (port 22) can be activated. If other services are opened, all are disabled. Run a shell script to complete the above functions. In actual O M, you can use puppet and other tools to perform this function faster and better. Therefore, this case is only used to train your hands to familiarize yourself with common shell comm
This article mainly introduces how to find nine consecutive idle ports in Python. For more information, see this article. it mainly introduces how to find nine consecutive idle ports in Python, for more information, see
I. project requirements
To install a software, enter the idle port during configuration. Check whether a port of five platforms is occupied
Five platforms are windows, linux, aix, hp, and s
The aggregation transformation allows you to define groups for aggregations, rather than performing aggregations across all input data. For example, instead of looking for total company sales, you can find the total sales by region group.To define a group for an aggregate expression, select the appropriate input, input/output, output, and variable ports in the aggregation transformation. You can select multiple group by
As an embedded product, the company uses the ARM kernel and Linux operating system (not uClinux ). My recent work is to mount a previously prepared module (via serial port for communication) to the system, and control a series of work of this module through serial port, and require
Into a separate driver (not controlled by an application ). I also want to familiarize myself with the development method of the device driver in Linux. The Development Board of another company we bought, Linux, can n
Close dangerous ports with one click (preventing hacker intrusion)Dangerous, port, hackerCopy all of the following contentUse NotePad to save the suffixBatCopy From @ below as prompted
Copy codeThe Code is as follows: @ echo off
Color 1f
Title: Disable common dangerous ports
Echo.
Echo.
Echo this batch is used to start the firewall of the XP system and disable common dangerous
CentOS iptables is accessible only on ports 22 and 80.
Iptables is accessible only on ports 22 and 80.
Run the netstat-tnl command to check which ports are opened on the current server.
Ssh codeNetstat-tnl
View firewall settings
Ssh codeIptables-L-n
Open ports 22 and 80
Ssh codeIptables-a input-p tcp -- dport 22
In Linux, how does one view the developed port ?, View development ports in linux
Introduction: on Linux servers, it is often necessary to check whether certain ports of the system are enabled normally, or to know which processes occupy specific port services. Therefore, this command is very common, this article describes common methods for these commands.
1. check whether a specific port is enabled or occu
I. Relationship between ports and servicesThe correspondence between the port number and the corresponding service is stored in the/etc/services file. Most ports can be found in this file. Use the netstat commandThe displayed service name is also found in this file. Some people say that they can disable the port by comment out the corresponding port number in this file.I tried it but it didn't work. This me
in the Linux under, by default 1024x768 The following ports are to be Root can be used under other users, if you try to use it will be an error. At some point, we may consider that the program runs under the root account, but this may pose a security risk to the Linux System. How can you allow a non- root user to run a program that is less than the 1024x768 port? This article attempts to give some methods: The first method: SetUIDUser is set to the
Recently found that Apache failed to start, check log also no fruit, through the manual launch prompts the following error:
(OS 10048) typically each socket address (Protocol/network address/port) is allowed only once. : Make_sock:could not bind to address 0.0.0.0:80
No listening sockets available, shutting down
Unable to open logs
This is due to the 80 port is occupied, the use of 80 ports to stop the process.
How do I see that process takes up
Windows Server 2008 Disables local ports
Windows system By default many ports are open. By shutting down certain ports, you can improve the security of your Windows system to some extent, especially for servers.
The command "Netstat-an" allows you to know which port the system is currently listening on.
On Windows Server 2008 systems, there are two ways to dis
Associating processes and ports is a very useful function. You can clearly know which programs are using which ports are helpful for trojan detection and removal. However, although we can use the task manager to browse the process list and use Netstat to view the port usage, no command can be directly associated with the process and port WinXP to add the new NetStat function, allows you to directly view the
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