One of the simplest operations:sudo UFW version firewall versions: UFW 0.29-4ubuntu1 Copyright 2008-2009 Canonical Ltd.Ubuntu system has UFW installed by default.1. Installationsudo apt-get install UFW2. Enablesudo UFW enablesudo ufw default denyAfter running the above two commands, the firewall is turned on and turned on automatically when the system starts. All external access to the native is turned off,
Remote Terminal Services in a Windows 2000 system is a very powerful service, but also become an intruder in the host of the channel, the intruder can use some means to get the administrator account and password and intrusion into the host. Next, let's look at how to prevent hacking by modifying the default port.
As we all know, remote Terminal Services is based on por
Sometimes we may need to start more than one springboot, and the Springboot default port number is 8080, so at this point we need to modify the default ports of Springboot. There are two ways to modify the default port for Springboot. Here are the two ways to talk about each
In Linux, the default SSH port number is 22, because this is known as the port number, once the intruder to scan the port of 22 port, we immediately know that this is the port number for SSH login, so we need to modify the
How to modify SSH port 22 by default in Linux-Linux Enterprise Application-Linux server application information. NO 1:
01 if you want to change the SSH default Port (22), you only need to modify Port 22 in/etc/ssh/sshd_config. Here, change 22 to the
1. add the port vim/etc/ssh/sshd_config and remove the comment of # Port22 and add the line feed to Port57788. if the comment is added but the comment is modified, we recommend that you keep port 22 first, and then remove the new port. We recommend that you use a large port, such as 10000 ~ More than 65535. Restart the
After installing Iredmail, the port does not conflict with the port of the Web service due to the need to do port mapping on the router for the external network to access webmail, so the port of the mail server's httpd service needs to be modified.One, apache/httpd http service and HTTPS service
Method One
1.root account via SSH login to your VPS or server;
2. Execute the following two commands to modify the default port of 12345, you can modify the following statements in bold 12345 for any other port to execute the command;
Sed-i ' s/port=2222/port=12345/g '/us
This tutorial is currently the safest tutorial, if you are novice please follow the steps of the tutorial strictly, if there is a certain basis for people can selectively skip certain paragraphs modify port configuration
Run first
Vim/etc/ssh/sshd_config
Find #port 22 and remove the previous comment, then add a line of Port 1234 below.
Sometimes we may need to start more than one springboot, and the Springboot default port number is 8080, so at this point we need to modify the default ports of Springboot. There are two ways to modify the default port for Springboot. Here are the two ways to talk about each
In general, the default port after Aspnetcore is 5000, which everyone knows, and the default skeleton code doesn't see any IP address and port number that you enter, but as programmers we don't wantis controlled by the framework, how to implement the default
This is currently the safest tutorial. if you are a newbie, strictly follow the steps in this tutorial. if you have a certain foundation, you can skip this tutorial.
This is currently the safest tutorial. if you are a newbie, follow the steps in this tutorial. if you have a certain foundation, you can skip some paragraphs.Modify port configurations
Run
vim /etc/ssh/sshd_config
Find the line # Port 22, remov
The default port for ECS Windows Instance Remote Desktop is 3389. Based on security considerations, some users have the need to modify the default port to reduce the number of malicious attacks and scans of ECS instances through Remote Desktop.
Before you modify the registry, you need to be fully aware of the
I just learned about EJB today, And JBoss has been installed successfully. You can enter localhost: 8080 and there is nothing. I remember that Tomat didn't use port 8080 at the time. It should not be the reason for Tomcat, I checked the port usage on the Internet and found that it was occupied by Oracle. I modified the default
One: Oracle
Drive: Oracle.jdbc.driver.OracleDriver
url:jdbc:oracle:thin:@
Note: machine_name: The name of the machine where the database is located, if the machine is 127.0.0.1 or localhost, if it is a remote connection, it is a remote IP address;
Port: Port number, default is 1521
Two: SQL Server
Drive: Com.microsoft.jdbc.sqlserver.SQLServerDriver
url:jdb
In recent days, the server's database (SQL Server) has been subjected to attacks, some people constantly rotation want to log into the database, from the SQL log can be seen, at first I was through the local security policy to disable the corresponding several attack IP, while the database sa account is disabled, think it should be OK , after all, my server is not so precious, why do you hold on to it?! Who knows the next day to see, crouching trough, unexpectedly still in attack, changed the IP
If you use dbca to create a single-instance database in the Oracle11gRAC environment, Oracle automatically registers it to the default port 1521 and listener. In most cases, we use
If you use dbca to create a single-instance database in the Oracle 11g RAC environment, Oracle automatically registers it to the default port
Ubuntu15.04 Nginx, Apache2 Modify the default port numberBuild a Web server via Ubuntu, and sometimes you need to modify the port number of the Web service as needed, and here I've compiled the process of modifying the default port number and site directory for Nginx and Apa
Modify Apache's default portThe way to modify the Apache port is the most compromise method, the consequence is that when you open the Apache server, the access to the native address will be accompanied by a port number, such as http://localhost:8888.Modify the method is to directly modify the httpd.conf file, the location of the file in the Apache installation d
The Builder developer online CentOS modifies the default SSH Port. if the connection is successful, edit the settings of sshd_config again and delete Port22. The reason for setting two ports first and closing one after the test is successful is to change the conf to allow access in case of unknown situations such as disconnection, network disconnection, and misoperation.
The Builder developer online CentOS
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