NAV: SLTechnology News&Howtos > Network Security >

• 

  Using OpenSSL for data encryption

  The basic concept of 0x01 OpenSSL OpenSSL is a protocol that provides security and data integrity for network communications, including major cryptographic algorithms, commonly used key and certificate encapsulation management functions, and the SSL protocol. Basic outline of 0x02 encryption and decryption

  2022-06-01 03:34:55 Views: 294
• 

  Deployment and implementation of project case 2 of PingingLab

  Project case, reproduced from http://chenxinjie.blog.51cto.com/7749507/1274472. According to the requirements to achieve. The topology is: we can try, quite exercise people, quite test their knowledge. According to the reprinted

  2022-06-01 03:34:53 Views: 240
• 

  Iptables configures NOTRACK and TRACK for conntrack

  Iptables itself does not have TRACK target, so you cannot specify the whitelist of packets that need to be processed by the conntrack module, for example, I want to implement: except that the source IP is 192.168.10.0 track.

  2022-06-01 03:34:52 Views: 264
• 

  Mini Program should be used for shell scripts

  Sum non-recursion of 1. 100: #! / bin/bash read num count=1 sum=0 val= "" ret= "" while [$count-le $num] do if

  2022-06-01 03:34:52 Views: 268
• 

  Rsync + inodify to realize File synchronization

  My configuration: a for server B for client An and B, please refer to rsync+ssh because rsync uses ssh channel, so the server side of rsync does not need to be configured or started. Rsync uses the port where ssh is located when transmitting. I wrote the foot on A side.

  2022-06-01 03:34:52 Views: 227
• 

  Implementation of interworking across VLAN networks using single-arm routing technology

  1. The experiment requires that PC1 belongs to vlan10, PC2 belongs to vlan20,PC3, belongs to vlan30,PC4, belongs to vlan10. Use dhcp to obtain the IP address automatically. Single-arm routing technology is used to realize the interworking of the whole network. two。 Experiment step R1:R1#c

  2022-06-01 03:34:43 Views: 211
• 

  IDA search Chinese string

  The string window of IDA search Chinese string IDA can only display English by default. Some methods on the Internet are to specify the parameters at startup to display Chinese ida64-DCULTURE=allida-DCULTURE=all and to modify cfg/i.

  2022-06-01 03:34:37 Views: 224
• 

  3. CentOS6.5 View the installation package corresponding to the command

  [root@host ~] # which ping/bin/ping [root@host ~] # rpm-qf / bin/pingiputils-20071127-17.el6_4.2.x86_64

  2022-06-01 03:34:37 Views: 204
• 

  EOS Code Analysis of 6 P2P active handshake process

  Actively link peer connect (seed_node); link peer node if (start_session (c)) {c-> send_handshake (); / / send handshake protocol} c-> sen

  2022-06-01 03:34:36 Views: 234
• 

  HCL installation issu

  After downloading the HCL installation package, follow the installation guide and click "next" to install it step by step. The installation process is simple and there are generally no problems. However, after downloading and installing, I found that the software could not be opened. When facing this kind of problem, the best way is to search for the solution to the problem on the Internet. There are many scholars.

  2022-06-01 03:34:36 Views: 273
• 

  ENSP prompt counter cannot be used

  The following message appears when starting switching and routing devices in eNSP: solution: select start > all programs > Accessories right-click Command prompt, select run as Administrator in the pop-up command line window, enter the appropriate command and restart the counter to execute lodct

  2022-06-01 03:34:30 Views: 277
• 

  How to solve the problem that dns is hijacked quickly?

  You can manually specify dns to avoid hijacking. You can also use IIS7 site Monitoring to check the real-time security of your site by entering your own domain name, whether it is to detect or identify problems. Operation steps: first, open the control panel, find the network and

  2022-06-01 03:34:26 Views: 230
• 

  C language pull-out sorting algorithm and Code

  Pull-out sort is a kind of sorting algorithm, which does not change the original sequence (array), but creates a new sequence and operates on the length of the new sequence. Here to sort from small to big as an example to stop the explanation. The fundamental idea and examples to illustrate that the fundamental idea of pull-out sorting is to add elements one by one to an array that has been sorted.

  2022-06-01 03:34:26 Views: 220
• 

  Apache does not record the development of file type logs

  Vim / usr/local/apache2/conf/extra/httpd-vhosts.conf adds the following code to the CustomLog line: SetEnvIf Request_URI ". *\. Gif

  2022-06-01 03:34:11 Views: 249
• 

  Configuration of NAT port mapping

  Port mapping maps the LAN IP address of a host to a WAN IP address. When a user accesses a port that provides a mapped port host, the server transfers the request to the host within the local LAN that provides this specific service; using the port mapping function, you can also

  2022-06-01 03:34:11 Views: 281
• 

  To solve the serious packet loss after sfewfesfs virus infection, the method of deletion is attached.

  Two days ago, a server lost packets as soon as it was connected to the network, intermittently, traffic monitoring showed that the traffic was very high, suspected to be *, but the problem remained after closing 80 ports, and started to see whether there was a virus in the server. As expected, netstat-nltp found that there were three suspicious link files named as sfew

  2022-06-01 03:34:11 Views: 297
• 

  Summary of grammar knowledge points of bash script programming the second part

  Summary of grammar knowledge points of bash script programming the second part continues the first part to summarize and analyze the interactive programming of 6.bash programming read-p "prompt" / / hint-ttimeout gives the variable default value varName=$ {varName:-va

  2022-06-01 03:34:10 Views: 223
• 

  Socket programming of Network based on UDP Protocol

  First, the characteristics of UDP protocol UDP protocol: user packet protocol 1, UDP protocol is connectionless. That is, there is no need to establish a connection before the data is sent (of course, there is no link release at the end of the data transmission), thus reducing the overhead and the delay before the data is sent. 2 、

  2022-06-01 03:34:02 Views: 203
• 

  Cisco switch Port err-disable solution

  One of my 2960GG is connected to the core 3850 switch through multimode 10G SFP-10GBase-LRM fiber. The network is down this morning. The SFP module lights on 3850G and 2960 are not lit. Check the CISCO 2960G port as follows

  2022-06-01 03:34:02 Views: 223
• 

  Introduction to the role of Industrial RTU in different Application Fields

  The full name of the remote terminal unit RTU is Remote Terminal Unit, which is a kind of equipment for data acquisition and wireless transmission in a long communication distance and harsh environment. It has the functions of remote data acquisition, control and communication, and can receive the operation instructions of the host computer and control the executive mechanism of the terminal.

  2022-06-01 03:33:56 Views: 298