detailed network statistics

./nginx-s stop to stop Nginx.third, network eventsNginx handles network events in an asynchronous, non-blocking manner, similar to Libevent, as follows:Figure 2 Nginx Network eventsThe master process first builds the socket that needs to be listen, and then fork out multiple woker processes so that each work process can accept the socket. When a client connection

Resources:Https://www.baidu.com/s?ie=UTF-8wd=tcpdump%20%E6%8C%87%E5%AE%9Aiptcpdump very practical clutch example : http://blog.csdn.net/nanyun2010/article/details/23445223tcpdump very detailed : http://blog.chinaunix.net/uid-11242066-id-4084382.htmlSuper Detail tcpdump usage : http://www.cnblogs.com/maifengqiang/p/3863168.htmlThe usage of Linux tcpdump command is detailed (more content): http://www.jb51.net

The most detailed Tarjan algorithm explained in the whole network, I dare not say anything else. Anyway, other Tarjan algorithm explained, I looked at half a day to understand. I wrote this, read it once, found that the original Tarjan so simple!Tarjan algorithm, a magic algorithm about the connectivity of graphs. Based on DFS (di mage) algorithm, depth first search for a map. Attention! is a graph of direc

The most detailed Tarjan algorithm explained in the whole network, I dare not say anything else. Anyway, other Tarjan algorithm explained, I looked at half a day to understand. I wrote this, read it once, found that the original Tarjan so simple!Tarjan algorithm, a magic algorithm about the connectivity of graphs. Based on DFS (di mage) algorithm, depth first search for a map. Attention! is a graph of direc

Not much to say, directly on the dry goods!First of all, make it clear that the new and running methods are different between the idea, Eclipse, and myeclipse editors.The most detailed eclipse in the network how to correctly create a normal Java Web project and publish it to Tomcat to run successfully "blogger highly recommended" (Graphic details)　Eclipse isOrMyEclipse isByBecomeThat is, only the part of th

Gateway??? What the hell? Feel a headache Ah! It's okay, it's even easier!Let me start with science. What is a switch? What is a router?switch is mainly used for local area network, several computers in the same network segment, these machines to communicate with the switch on the line. If you want to communicate across a network segment or access a public

Addressvariable part of IP datagram header :The variable part of the IP capital is an optional field. Option fields are used to support troubleshooting, measurement, and security measures, and are rich in content. This field is variable in length, ranging from 1 bytes to 40 bytes, depending on the item selected.Some options require only 1 bytes, and it includes only 1-byte option codes. However, there are several options that require multiple bytes, which are stitched together, with no delimite

(buffer, 0, flag); A } - os.close (); - is.close (); the}Execution Result:1, the Code line 4thopenConnection()该方法用于返回URLConnection对象，表示到URL所引用的远程连接。2, the Code line 5th getInputStream method, to return the input stream read from this open connection.3, the following code is we are already familiar with reading from the input stream to the data, and then through the output stream to write to the file.4, the implementation of the result is that we access through the browser http://www.bai

must be the same as the port specified in the packet sent by the servers.3. After the client prints the contents of the package, it wants to return some content back. At this point, the server-side IP and port numbers can be obtained from the packets that were previously sent.Datagrampacket Packet2 = new Datagrampacket (Str2.getbytes (), Str2.length (), packet.getaddress (), Packet.getport () );4, when the server receives the packet, it is no longer necessary to bind the port as the client crea

the reason, is because of the Linux RP (Reverse Path) filtering problem, in this case, the need for this host to the RP shutdown can be sudo sysctl net.ipv4.conf.bond0/51.rp_filter=0 sudo sysctl net.ipv4.conf.bond0/52.rp_filter=0 sudo sysctl net.ipv4.conf.all.rp_filter=0 sudo sysctl net.ipv4.conf.bond0.rp_filter=0 Third-party Network plugin At present, the better choice is the following, but still groping Calico, http://projectcalico.o

Matplotlib.pyplot as pltcaffe_root = '/home/lynn/caffe/' sys. Path.insert (0, caffe_root + ' python ')import caffemodel_file = '/home/lynn/caffe/examples/mnist/ Lenet.prototxt ' pretrained = ' /home/lynn/caffe/examples/mnist/lenet_iter_10000.caffemodel ' IMAGE_FILE = '/ Home/lynn/test.bmp ' input_image = Caffe.io.load_image (image_file, color=false) #print input_imagenet = Caffe. Classifier (Model_file, pretrained) prediction = Net.predict ([input_image], oversample = False) caffe.set_mode_cpu

Detailed analysis of multiple TP-Link Network Camera VulnerabilitiesVulnerability description:Multiple vulnerabilities are found on the firmware of the TP-LinkTL-SC3171 IP Cameras Network Camera version LM.1.6.18P12 _ sign5, which allows attackers to do the following:1: [CVE-2013-2578] via file/cgi-bin/admin? Http://www.bkjia.com/kf/ware/vc/ "target =" _ blank "c

Detailed analysis of the principle of WiFi universal key network0x00 does the wifi universal key obtain the root user's password and then upload it secretly? In this test, the version is 3.2.3. First, the problematic code is located through the suspicious shell statement: Class Name com. snda. wifilocating. f. ba The function of this Code is to set the system's wifi with the root permission. the conf file is copied to the app's own directory, and th

Master server-network configuration (ultra-detailed version)Preface I used virtual machines all the time and used the Desktop version. I think many things are taken for granted. This time I directly installed the system on the server and installed the server version, the server is still a type of large, tens of thousands of servers, and the requirements are a lot higher at once. I found that many things nee

A: IntroductionFor file sharing between Unix/linux systems over a network, users can mount the shared directory provided by the NFS server in the network to a local file directory, and can manipulate the contents of the NFS file system as if it were a local file system.Second, installationRpm-qa |grep rpcbind yum Install rpcbind Rpm-qa |grep NFS Yum List | grep NFS Yum Install Nfs-utilsThird, start NFSServi

Article title: detailed analysis of Linux system network configuration. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 1. View IP Ifconfig 2. IP address configuration method: A. This method takes effect immediately, but will not be saved after restart. (Other methods ex

Nsurlsesstion-(void) Setsessiondidbecomeinvalidblock: (Nullable Void (^) (nsurlsession *session, Nserror *error)) block;-(void) Setsessiondidreceiveauthenticationchallengeblock: (Nullable Nsurlsessionauthchallengedisposition (^) (NSURLSession *session, Nsurlauthenticationchallenge *challenge, nsurlcredential * _nullable __autoreleasing * _Nullable credential)) Block, .....-(void) Setsessiondidbecomeinvalidblock: (void (^) (nsurlsession *session, Nserror *error)) block { Self.sessiondidbecome

A large amount of information leaked by drug users purchased by drug network (including/user sign \ User detailed address \ User Name \ User email \ purchase time \ Drug Name \ etc) Rt Http://www.12yao.com/user/log.txtUser log leakage, including user sign \ User detailed address \ User Name \ User email \ purchase time \ Drug Name \ etc.Urgent Repair requir

If if is not given, it will try to find the best interface for the given gateway. Example6:If the local IP address is 172.16.1.100 and the gateway is 172.16.1.254, there is an existing ADSL line, and the router address is 172.161.200, you can access the Internet through this address. How can I access resources on the Internet? You only need to perform the following three steps: Step 1: Change the local gateway address from 172.16.1.254 to 172.16.1.200. Step 2: Route Delete 0.0.0.0 ma

at the lowest memory address at the host byte order --Different host has different byte order, such as x86 small end byte order, Motorola 6800 is big endian byte order network byte Order-- network byte order specification is big endian byte order description: An int type variable 254 is stored in memory, If the variable's hundred are stored at a low address on the memory address bar,Bits are stored at high