t420 ports

View Status:Iptables-l-NAdd the following methods for opening a specific port:Use Iptables to open the following ports/sbin/iptables-i input-p TCP--dport 8000-j ACCEPTSave/etc/rc.d/init.d/iptables SaveRestart ServiceService Iptables RestartSee if the port you want to open takes effect?/etc/init.d/iptables statusAct 2:or edit/etc/sysconfig/iptables directly-A input-p tcp-m tcp--dport 4000-j ACCEPTSave in the previous sectionReboot again:Service Iptable

Modify SSH ports and disable root remote login settings in Linux View the system version below[Email protected] ~]# cat/etc/redhat-releaseCentOS Release 6.7 (Final) Modifying a configuration fileLinux Modify Portvim /etc/ssh/sshd_configFind #portRemove the previous # and then modify port 1234650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M01/9B/AE/wKiom1ll2nOBTfZVAAANOYt0oEw047.png "title=" 11. PNG "alt=" Wkiom1ll2nobtfzvaaanoyt0oew047.

#!/usr/bin/env python#-*-Coding:utf-8-*-Import Socket,sysFrom Optparse import OptionparserStat_ok=0Stat_warning=1stat_critical=2Stat_unknown=3def check_port (Address,port):S=socket.socket (Socket.af_inet,socket. SOCK_STREAM)S.settimeout (3)TryS.connect ((Address,port))print "Check ssh port%s OK"%portSys.exit (STAT_OK)Except Exception,e:print "Check ssh port%s failed:%s"% (port,e)Sys.exit (stat_critical)def work ():P=optionparser ()P.add_option ("-A", "--address", dest= "address", default= "127.0

' try : from oscore import setting #导入配置文件 if Setting.status = = ' online ': #如果配置中是线上的, the program is running in the background daemonize () excep T exception:pass app = Default_app () app = Sessionmiddleware (app, session_opts) # Sessionmiddleware is session plugin run (app=app,host= ' 0.0.0.0 ', port=portnum,server= ' gevent ') Best, with Nginx proxy to load these ports,

Modify SSH ports and disable root telnet under LinuxAs we all know, SSH default port number is 22, to change the port number is 9688, need to edit/etc/ssh/ssh_config and/etc/ssh/sshd_config two files can;To disable root login, you need to edit the/etc/ssh/sshd_config. (Some Linux directories may be/etc/sshd, please modify according to the actual situation)The procedure is as follows:1. Edit the/etc/ssh/ssh_config file:[Email protected] ~]# cat/etc/ssh

Installed TOMCAT7, found in addition to the function of access to the outside world, outrageous. So ask Baidu God, after a lot of trouble, the summary steps are as follows:1. Modify the file/etc/sysconfig/iptables[Email protected] ~]# cd/etc/sysconfig/[Email protected] sysconfig]# VI iptablesThe contents of the file are as follows, note that the red line is newly added to open 8080 ports to the outside world.# Firewall configuration written by System-

; "src=" http://s3.51cto.com/wyfs02/M00/53/AE/wKioL1RtnGzCZIlUAAPJlGJgxz8483.jpg "style=" float: none; "title=" Image 68.png "alt=" Wkiol1rtngzcziluaapjlgjgxz8483.jpg "/>Conclusion: Auto-discovery can monitor the server port very well, when the new port is opened, it will scan itself, do not need to care for the person, it is recommended to disable the non-important trigger, otherwise it will be alerted frequently, and some ports will be in a meeting.

Each peripheral is controlled by a read-write register, and the access addresses are contiguous. The program accesses the external device (ISA device, PCI device), either through the I/O port or I/O memory. ISA devices generally use I/O ports, while most PCI devices map registers to a memory address segment.Request I/O port through function request_region, operation on I/O port has special instruction function, INB, INW, INL, Outb, OUTW and OutlReques

View Status:Iptables-l-NAdd the following methods for opening a specific port:Use Iptables to open the following ports/sbin/iptables-i input-p TCP--dport 8000-j ACCEPTSave/etc/rc.d/init.d/iptables SaveRestart ServiceService Iptables RestartSee if the port you want to open takes effect?/etc/init.d/iptables statusAct 2:or edit/etc/sysconfig/iptables directly-A input-p tcp-m tcp--dport 4000-j ACCEPTSave in the previous sectionReboot again:Service Iptable

xinted mode is also known as the Internet super-server (super server) compared to the stand-alone mode. XINETD can listen to multiple specified ports at the same time, when accepting user requests, he can initiate different network service processes to handle these user requests depending on the port requested by the user. You can think of xinetd as a Management server that manages the startup service, decides to hand over a client request to that pr

suppress IPv4 mapped when compiling httpd, --disable-v4-mapped by default httpd will listen to IPv4 and IPv6, instead of just listening to IPv6, as follows:1 grep :2 tcp 0 00.0. 0.0: 0.0. 0.0:* LISTEN 40576/httpd3 tcp6 0 0 :::+ :::* LISTEN 40576/httpdInstead, if you /etc/httpd/conf/httpd.conf Listen set it to only listen for the IPv6 address, the following:1 Listen:::Then, you will see that netsta

Reprint: http://blog.csdn.net/xinxin19881112/article/details/6148507 Problem Description: Start Tomcat Server error: Several ports (8005, 8080, 8009) required by Tomcat v5.5 Server at localhost are. The server may already is running in another process, or a system process may is using the port. To start this server you'll need to stop the other process or change the port number (s).Reason: Port 8005, 8080, 8009 are occupied. It is possible that eclip

Cisco switch in the VLAN how to add multiple ports at a time, this is usually used in the process of our configuration, because if one of the add port, the workload will be very large, so need to add multiple ports at once, the following by the small set of specific operations to introduce 1, first through the Consolo port or telnet to connect the switch to enter the user mode "", as shown in the picture: