without tag;In practice, various connection methods are implemented according to the access, Trunk, and hybrid properties of the device ports. The application of port attributes is also far beyond the simple VLAN member interconnect, especially our division, with Port properties to implement some relatively complex functions, such as Isolated-user VLAN, multicast VLAN.Principles of processing 3.3 Tag/untag
Port Scan path:What is a scanner?A scanner automatically detects remote or local host security vulnerabilities.ProgramBy using a scanner, you can discover the distribution of various TCP ports on the remote server and the services provided and their software versions! This allows us to indirectly or intuitively understand the security problems of remote hosts.
Working PrincipleThe scanner collects a lot of useful information about the target host (f
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
The main function of Port-channel in practical work is to bundle two or more ports into a virtual channel.Interface Port-channel1Description Port (1/0/5-6)Switchport Trunk Encapsulation dot1qSwitchport Trunk allowed VLAN 10Switchport mode Trunk!Interface Port-channel2Description Po
How to change the SA password and default port number of the SQL Server database qq752923276 csdn blog I want to comment () font size: T | T
This article describes how to change the SA password, change the default port, and set the port number specified by the ADO connection string in the SQL Server database.
AD:
You can change the SA password of an SQL Server d
[:nnnnn], blue part
The follower is used to connect to the leader and only listens on the leader on the port.
3888
/etc/zookeeper/conf/zoo.cfg in server.x=[hostname]:nnnnn[:nnnnn], blue part
Used for the leader election. Required only if ELECTIONALG is 3 (default).
All port protocols are based on TCP.For all Hadoop daemon that exist in the Web UI (HTTP servi
.
3888
/etc/zookeeper/conf/zoo.cfg in server.x=[hostname]:nnnnn[:nnnnn], blue part
Used for the leader election. Required only if ELECTIONALG is 3 (default).
All port protocols are based on TCP.
For all Hadoop daemon that exist in the Web UI (HTTP service), there are URLs like:
/logsList of log files for downloading and viewing
/loglevelAllows you to set the log4j logging level, similar to Hadoop daemonlog
/sta
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
: This article describes how to use port 80 for Jsp and PHP to integrate Apache and Tomcat without adding a port number. For more information about PHP tutorials, see. Purpose:
The integration of Apache and Tomcat allows both Java and PHP projects to share port 80. when accessing a website, you do not need to add a port
Super-vlan :
Achieve two-layer isolation, three-layer interoperability;
all the Sub-vlan all three-tier communication needs to pass Super-vlan this gateway to implement;
in a large network, saving IP Resources. VLAN communication can be achieved by simply configuring the Super-vlan address ;
Mux-vlan :
Implement VLAN rooms and VLAN internal user, traffic isolation and control
dividing the main VLAN , from VLAN , from VLAN includes interoperability from VLAN and isola
Tags: GPO. EXE technology port network communication connection appears in Microsoft EXEBeginners SQL SEVER 2008, the results of the first debugging this problem arises: And then Baidu a bit, the meaning of these three options:
Cancel remote debugging: Cancels the attempt to start debugging. Your computer's security settings remain the same.
Suppress restrictions on remote debugging from computers in the local network (subnet): Enable
Tags: style blog http io sp file div.MySQL default port number is 3306, if install multiple or conflict need to modify the port number, modify the port number of the My.ini, the file is normally under the installation directory. Here are the specific instructions:Method/Step
Stop the MySQL server in the service first, then find the My.ini file under the MySQ
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