1. First we go to Linux remotelyThe 2.SSH configuration file is in the/etc/ssh/sshd_config file.3. We modify the port by editing this file to achieveVi/etc/ssh/sshd_config4. Find the #port 22 line, default port 22We can remove the previous # and change the 22 to another port5. For example above, I changed the original line to
Iptables implementation of Port forwarding, port mapping and two-way access is not difficult to configure, see below:
Allow packet forwarding:
#echo 1 >/proc/sys/net/ipv4/ip_forward
Forwarding TCP 8081 to xx.xx.xx.xx:
#iptables-T nat-i prerouting-p tcp–dport 80-j dnat–to xx.xx.xx.xx
Enable the forwarding packet to implement a "two-way path" and set a correct return channel for the packet:
#iptables-T
The common port used for operating the hard disk is 1f0h ~ Port 1f7h. The meaning of each port is as follows:Port Number read or write specific meaning1 f0h read/write is used to transmit read/write data (the content is a byte of data being transferred)1f1h read is used to read error codes1f2h read/write: number of sectors to be read/written1f3h1f4h read/write is
ECOS application can be started without Redboot boot, and can be directly started from the Internal flash of stm32. I recorded this porting process as an article and posted it on my blog. Because there is a lot of content, I will not post it here. If you are interested, you can go to my blog to learn about it. The following is the link:Port ECOs with stm32#7. Port eCos and run the helloworld program successfully. Configure and compile the static link
Centos7 modify the ssh port !, Centos7 modify ssh port
The default ssh port is 22, which is always scanned for logon!
To change the default port to 2218:
Modify the ssh configuration file/etc/ssh/sshd_config, remove the comment before Port 22, and change 22 to 2218
[root@n
today to help a netizen solved a problem about the port, their company developed a set of software needs to move to another server above, and then all set up and found that the login software error, Check that the walk 192.168.1.1:8080 not pass, try to modify into localhost:8080 can log on locally, but this remote cannot access. Check that the system has shut down the firewall, there is no anti-virus software and other
Void deleetest () {// 1 create a set of character system. net. sockets. socket S = new socket (addressfamily. interNetwork, sockettype. dgram, protocoltype. UDP); S. setsocketoption (system. net. sockets. socketoptionlevel. socket, socketoptionname. reuseaddress, true); // s. setsocketoption (socketoptionlevel. socket, socketoptionname. reuseaddress, true); // 2 bind to port 4567 ipendpoint IPE = new ipendpoint (IPaddress. any, 4503); endpoint Ep = (e
Tags: blog HTTP use art ar Div log SQLOriginal article: http://blog.csdn.net/ikmb/article/details/3863705If the website URL is: http: // ip: Port/If SSL is enabled on the website (default port 443 is used), visit the following in the browser:Https: // ip: Port/You will receive the following error:SSL receives a record that exceeds the maximum allowed length.(Erro
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 opening situation (Ubuntu execution)sudo UFW status 3. Open the 80
Windows has many open ports. When you access the Internet, network viruses and hackers can connect to your computer through these ports. To change your system to a copper wall, you should close these ports, mainly including TCP 135, 139, 445, 593, 1025, and UDP 135, 137, 138, and 445, some popular Backdoor Ports (such as TCP 2745, 3127, and 6129) and remote service access port 3389. The following describes how to disable these Network Ports in WINXP/2
ArticleDirectory
Method -:
Method 2:
Use Windows APIs
MSComm control used in MFC
Use USB to serial drive cypress_m8.ko (kernel> = 2.6)
Use hiddev
Introduction: USB 2com is a virtual serial port driver of USB to serial port converter.
Program (Windows2000/XP), USB-HID-> com converter (not tested) for the proxyess, and compatible devices. USB-HID-> com converter is compatible with
In Activemq's Conf/activemq.xml master config file, there is this passage,650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/8B/6B/wKioL1hOO8GREhQQAAEBIUDtPqU599.png "title=" 1.png " alt= "Wkiol1hoo8grehqqaaebiudtpqu599.png"/>The Transportconnectors field in this figure is the MQ protocol port for each network, as shown by the figure, Openwire this name uses the access port is 61616,AMQP this name's
Open a port in Windows Firewall
If the Windows Firewall blocks a program and you want to allow the program to communicate through the firewallSelect this program in the list of programs allowed by Windows Firewall (also known as the "exception List. To learn how to perform this operation, seeWindows Firewall for communication.
However, if the program is not listed, you may need to open a port. For example,
Tags: blade server traffic image traffic replication IBM blade BTN Nortel Switching ModuleHow to copy traffic from the external port ext to the internal int port on the blade server to collect DNS traffic
(1) We have fixed the packet capture problem for nortel_32r1860 switch module 112.4.20.12dns of the IBM blade server.
After exploration and testing, it seems that the beidian switch module does not use t
1. Preface
I am using USB to serial port, and the chip is pl2303. It seems that Ubuntu has a USB driver of pl2303, which can be used directly. I have never tried other USB to serial ports.
2. Install minicom
Enter sudo apt-Get install minicom in the terminal
Download and install minicom as prompted. After downloading and installing minicom, run the command to start minicom. Enter sudo minicom in the terminal to start minicom.
3. Set minic
The default Apache port 80 is used, causing service failure. The default apache Port
In practice, when running the Apache service, you may find that the default port 80 of Apache is occupied and the service cannot be started. However, you can find out which process cannot be used, how should we solve the problem at this time?
1) run the netstat-ano command in c
PHP sends text messages through the serial port, and php sends text messages through the serial port. PHP sends text messages through the serial port. php sends text messages through the serial port as technology advances. in the text message sending and receiving field, there are three modes in sequence: BLOCKMODE, TE
The project background is a php application. To add the instant push function, port 8888 is written in node. js to push instant messages and socket. io is used for data transmission. How can I establish a socket connection between Port 80 and port 8888 on the application page? Node jsphp cross-origin socket iosocket
The project background is a php applicati
Record the experiences of debugging serial port device bugs and debugging serial port bugs
It took almost one day to get a Bug. The Bug is as follows:
This Bug is especially unique. It is reported every time the end user uses the software without any prompt on the development computer. I carefully thought about the newly added features in the source code and did not find any obvious problems. Therefore, t
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