Environment system: UbuntuTools: Xshell + VirtualBox1. Test whether the port of the remote host is turned on (Windows command line execution)Telnet 192.168.1.103 80Remote access host 80 port, test host's 80 port is turned on2. Check the local port
Minicom is the Linux under the serial communication software, its use relies entirely on the keyboard operation, although no "HyperTerminal" so easy to use, but after using the habit reader will appreciate its efficiency and convenience, the
Target
Need to develop a monitoring program under Linux that uses the network to log on to another Linux server A to execute commands and get command execution results, and then analyze the data
Basic Programme
Because there are no Linux computers,
Minicom is a software for serial communication in Linux. It relies entirely on the keyboard.It is not as easy to use as a "Super Terminal", but readers will understand its efficiency and convenience after getting used to it. The following describes
SSH port forwarding
Through the introduction in this article, you can learn how to apply the SSH port forwarding mechanism to solve some problems in daily work/life. Learn to use port forwarding in a non-secure environment to encrypt network
Use Ubuntu 16.04 to build an all-around Server
This article explains how to install Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot, and ISPConfig 16.04 on Ubuntu 3.1 to build a website, email, email list, DNS, and FTP server. ISPConfig 3 is a
Under Ubuntu Open port seems to have two main methods, one is Ubuntu comes with the firewall, one is iptables, here we mainly use iptables. The system version for this article is ubuntu14.04 and ubuntu16.04
Installing IptablesIn general, when
Use the Ubuntu serial port tool minicom and install the dnw image (mainly for the Android210 Development Board ). I. Minicom also has serial communication tools in Ubuntu, such as Minicom and kermit. The usage of Minicom is described here. (1)
Before scanning:Nmap Scan Report for 192.168.0.39Host is up (0.00029s latency).All scanned ports on 192.168.0.39 is filteredMAC Address:00:0c:29:ef:80:d6 (VMware)After opening:Nmap Scan Report for 192.168.0.39Host is up (0.00038s latency).Not shown:9
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
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