Know that SSH friends should know what it is used to do, if you do not know what is SSH telnet, you can go to see my previous blog, about the network foundation of Linux knowledge.Note:ssh is used to log in remotely. Execute the SSH command to open
Ps:tcpdump is a tool for intercepting network groupings and outputting grouped content, which is simply the packet capture tool. With its powerful capabilities and flexible interception strategy, tcpdump is the preferred tool for network analysis
Basic knowledge of Language basics Pycharm shortcut keys
Quick CopyCursor navigates to a row or selects many rows Crtl/command + D
CommentsThe cursor navigates to a line or selects many rows Crtl/command +/
Delete (cut)Cursor
Basic knowledge:1, OSI layered model and TCP/IP layered model correspondence relation2, seven layer model and the corresponding relationship between the protocolNetwork layer------------IP (interconnection protocol between networks)Transport Layer---
On the Java foundation of the article, I think it can also be written in my other blog, is definitely original, and now share to everyone out. -----------------------------------------------------------------------------------------------------------
Reprint Http://www.ibm.com/developerworks/cn/linux/kernel/syscall/part1/appendix.html#icommentsBy convention, this list is modelled on the Man Pages section 2nd, the System invocation section. According to the author's understanding, the general
Installed MySQL 5.5, found remote connection with the MySQL client, reported 1042-can ' t get hostname for the your address error, while the connection user has been authorized. This error means "your address can not get host name", I thought of the
Ps:tcpdump is a tool for intercepting network groupings and outputting grouped content, which is simply the packet capture tool. With its powerful capabilities and flexible interception strategy, tcpdump is the preferred tool for network analysis
First, the introduction of Linux under the Grab Kit tool tcpdump
1. Tcpdump Introduction
Tcpdump can intercept the "head" of packets transmitted in the network and provide analysis. It supports filtering for network layers, protocols, hosts,
Gets the URL of the current page, which can be used Window.location.hrefIf you want to get to the host name, port number, etc. can be used directlyWindow.location.host//Host name plus port numberWindow.location.hostname//Host
Regular expressions are applied in PHP in PHP applications, regular expressions are used primarily for: • Regular matches: matching the corresponding content according to the regular expression · Regular substitution: matching content based on
Common client and server sideClient:Browser: IE: Pop-up window, Cheetah: Pop-up window, multi-tab, gaining effectService side:Server: tomcat:1. Processing request 2. Give answerTo get Tomcat to work for us, the related class classes written by Java
(1) Install the Python msgpack class library, The data serialization standard in the MSF official documentation is reference msgpack. [Email protected]:~# apt-get Install Python-setuptools[Email protected]:~# easy_install Msgpack-python(2) create
Textbook Knowledge Summary 13th Chapter Java Network Programming
URL class
The URL class is an important class in the java.net package
A URL object contains three basic information: protocol, address, and resource
Get OS information:1=" ".join(platform.linux_distribution())2= subprocess.call([‘cat‘‘/etc/redhat-release‘])Get host PlatformGet host Nameimport sockethostname = socket.gethostname()Get CPU information: Get the number of physical CPUs1. os.cpu_count(
Returns the local host name and IP address;InetAddress i = Inetaddress.getlocalhost ();I.gethostaddress ();//ipI.getaddress ()//???
Acquiring computer related information through computer name;InetAddress i = inetaddress.getbyname ("livingstone-pc"
Application of experimental 01:DHCPExperimental objective: To reduce the burden on the staff to configure the host IP address, the host automatically obtains the IP address and DNSLab Environment:Open the Cisco Packet Tracer software, the
This article mainly introduced the PHP network Operation function Summary, this article has enumerated such as GETHOSTBYADDR, gethostbyname, Header_remove, Http_response_code, Ip2long and so on network frequently uses the function, Need friends can
checkdnsrr-DNS traffic checks for the specified host (domain name) or IP addresscloselog-Turn off System log linksdefine_syslog_variables-initialization of all syslog-related variablesDNS_CHECK_RECORD-CHECKDNSRR AliasDNS_GET_MX-GETMXRR
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