telnet port 23

The two days of laboratory network did not give force, and later found that someone occupied the lab too much bandwidth, and landed in the laboratory old H3C s5500 switch to see the port traffic situation is very inconvenient, so the initiation of writing a small tool to statistics port traffic situation, has sought to find who occupied a large amount of bandwidth.So I looked up and found that Python had a

Telnet port 110 is a problem we need to pay attention to in the mail settings. It shows how to remotely log on to port 5.0 of the Server when the Server runs Microsoft Exchange Server 5.5 and 110. this helps solve the communication problem between the POP3 client and the mailbox on the Exchange Server computer. Follow these steps to confirm the correct POP3 conne

First, modify the SSH default port 1, edit the SSH configuration file: #vi/etc/ssh/ssh_config#vi/etc/ssh/sshd_configThe above 2 files, all remove the #port22 before "#", change 22 to a custom port, such as 2222#vi/etc/service the SSH-related port to 2222#service sshd Restart Linux under the default SSH port is 22, f

1. Modify SSH telnet port to 5000Input Vi/etc/ssh/sshd_configPort #把 ' #Port 22 ' changed to ' Port '; ( remember to remove the # number before it takes effect ) #AddressFamilyany#ListenAddress0.0.0.0#ListenAddress::Enter the service sshd restart #重启SSH服务;2. Firewall Add portBy default iptables only a subset of ports,

Yesterday, at the request of the students in their company's cloud platform to find a cloud host deployed Distributed File System Fastdfs,The installation went smoothly, but there was a problem when starting the service, and the tracker tracker very easily started up, endThe mouth can also be seen through the ss-ntl, but in the boot memory storage, but how can not find the corresponding port, checkLooked at the log, found that storage can not connect

Check the HTTP proxy to check whether the proxy service is normal. You need to ping the XXXXX port on the proxy machine. Because the number of machines is too large, You Need To Batch Execute Telnet commands. The script is as follows: Port = xxxxxcount = 0for I in $ (cat ip_list.dat) Do (count ++) echo "Count = $ count" # keyCode, 1 s automatically ends

reason is not known.With the range of Sysctl-a|grep Ip_local_port_range, 2201 should be allowed to be used, the actual unsuccessful, pending further study.Second, prohibit the root user remote loginFirst step: Add a user with normal permissions first#useradd Ssh_user#passwd Ssh_userSet Password, Confirm passwordStep Two: Disable root remote SSH login:Vi/etc/ssh/sshd_configPutPermitrootlogin YesSwitchPermitrootlogin NoSave and restart the SSH serviceService sshd Restart (or/etc/init.d/sshd resta

　　Windows Remote Desktop uses 3389 by default, in order to avoid being scanned with intentions to brute force the remote server or VPS account information. You can modify the default port 3389 to other ports, such as 8000,10000. It is best to modify the port after 10000 to avoid conflicts with other program ports in the system.　　The main thing to do on these three steps:1. Turn on inbound policy:Find the in

The ping command is not able to test the port, Ping is only testing network connectivity and packet send and receive status. Format: Ping IP address or host name [-T] [-a] [-N count] [l size] Parameter meaning:-t keep sending data to the target host;-A to display the network address of the target host in the IP address format;-N count specifies how many times you want to ping, specified by count. -L size Specifies the size of the packet to be sent

in order to make the Windows Exclusive host remote login more secure, often can encounter the customer asked how to modify the Remote Desktop port problem, the following details the specific method:First, the login server Select the System desktop "start", "Run" command, from the System run box, enter the string command "regedit", click the "OK" button, open the local workstation system registry editing interface; expand HKEY_ Local_machine The regist

_ssh_fd.close () result=BuffreturnresultdefSsh_close (_SSH_FD): _ssh_fd.close ()defMain (): hostname= ['xxx.xx.xx.xx'] Username= ['Root','Tomcat'] Password= ['********','*********'] cmd='echo "Port 61822" >>/etc/ssh/sshd_config service sshd Restart' forIinchRange (LEN (hostname)): sshd=Ssh_connect (Hostname[i], username[0], password[0])if "Authentication failed" inchStr (sshd):Print 'Permitrootlogin No'sshd= Ssh_connect (Hostname[i], username[1]

Telnet Port Script1 $servers= get-content D:\ps\ServerIPAddress.TXT2 $portToCheck= ' 80'3 for($i= 1;$i -le120;$i++)4 {5 foreach($server inch $servers) {6 7 If(test-connection$server-count 1-Quiet) {8 9 try {Ten $null= New-object System.net.sockets.tcpclient-argumentlist$server,$portToCheck One $props= @{ AServer =$server -PortOpen =' Yes ' -date=get-Date the } -

A strange thing happened today, LDAP port 636 suddenly did not pass the error is as follows[[email protected] ~]$ telnet 10.219.90.173 636Trying 10.219.90.173 ...Connected to 10.219.90.173.Escape character is ' ^] '.Connection closed by foreign host.Telnet test with WinDOS error as follows, port connection failed650) this.width=650; "Src=" https://s4.51cto.com/wy

1. Modify SSH telnet port to 8888# Vi/etc/ssh/sshd_config Port 8888 #把 #Port 22 modified to port 8888 # servicesshd Restart #重启SSH服务 or service sshd restart2. Firewall Add portThe default iptables only part of the port, use ad

Problem Description:1 follow the official website steps to install and start the memcached in the virtual machine . 2 the virtual machine itself telnet11211 port can be connected, 3 Use the XMANAGER22 port to connect to a virtual machine, but always telnet to a different 11211 portProblem reason: request is blocked by firewallWorkaround: Turn off the firewallTher

The above concludes that port 80 does not passView IptablesVi/etc/sysconfig/iptables #编辑防火墙配置文件-A input-m state--state new-m tcp-p TCP--dport 80-j ACCEPT (allow 80 ports via firewall)-A input-m state--state new-m tcp-p TCP--dport 3306-j ACCEPT (Allow 3306 ports via firewall)Special Note: Many netizens add these two rules to the last line of the firewall configuration, causing the firewall to fail to startThe correct one should be added to the default

1 since the installation of Oracle, the installation plsql are automatically detect the ORCL instance of IP and its port, the recent sudden discovery Plsql not connected, and then try Telnet 1521 port, and then found the port connection failed problem. After several groping, solved the problem. 2 Note: The installatio

#判断2222端口是否存活[email protected] opt]# cat telnet.sh #!/bin/bashjg= ' echo-e ' \ n ' |Telnet 192.168.1.30 22 |grep Connected | Wc-l ' If ["$JG" = = 1];then echo "0" Else echo "1" fi#判断www. Whether the baidu.com status is 200[email protected] opt]# cat url_mon.sh #!/bin/bashwget-t 10-c-Q--spider www.baidu.com retval=$?if ["$RETV AL "= = 0];then echo" 0 "Elsee cho" 1 "fiThis article is from the "Wsyht blog" blog, make sure to keep this source http://wsyh