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  • Reduce Redis memory footprint

    Reduce Redis memory footprint

    1. Advantages of reducing redis memory footprint 1, helping to reduce the time it takes to create and load snapshots 2, improving the efficiency of loading AOF files and rewriting AOF files 3, shortening the time required to synchronize from the server 4, making redis storage more efficient without adding additional hardware

    Shulou · 2022-06-01 03:46
  • An experiment to determine the basic configuration and principle of Huawei hybrid-vlan

    An experiment to determine the basic configuration and principle of Huawei hybrid-vlan

    Experimental topology: 2. Experimental requirements: PC1 and PC3 belong to VLAN10 PC2 and PC4 belong to VLAN20 PC5 and PC6 belong to VLAN30. Members of VLAN10 and 20 can communicate with PC5 in VLAN30, but VLAN10 and V

    Shulou · 2022-06-01 03:46
  • Detailed explanation of NAT configuration for Cisco ASA Application

    Detailed explanation of NAT configuration for Cisco ASA Application

    The basic principle of NAT on ASA fireproof wall is the same as on a router, except that you only need to define the intranet address and the translated address, and you don't need to enter the interface and apply it again. Basically, a NAT configuration can be completed with two commands. NAT on ASA has dynamic NAT, dynamic

    Shulou · 2022-06-01 03:46
  • 23.ACL access Control list

    23.ACL access Control list

    We can configure ACL to control whether packets are allowed or denied to reach the destination. Increase network security. ACL is divided into: v standard ACL: control, allow or deny according to the source of the packet. List number range: 1: 99. V extended ACL: based on the source, destination, and protocol of the packet

    Shulou · 2022-06-01 03:46
  • Horizon client folder Redirection permissions Manager

    Horizon client folder Redirection permissions Manager

    Today, I would like to introduce you to another tool we developed-the client folder redirection permissions controller. First, let's talk about the background of this tool. Horizonview agent version 6.2 adds the client folder redirection feature, which provides the client with the

    Shulou · 2022-06-01 03:46
  • TCP Datagram construction and three-way handshake (illustration)

    TCP Datagram construction and three-way handshake (illustration)

    TCP (Transmission Control Protocol, Transport mastery Protocol) is a convergence-oriented, reliable, word-saving-based communication protocol. Data should establish convergence before transmission and disconnect after transmission. The client needs to transport the data before sending and receiving data.

    Shulou · 2022-06-01 03:46
  • Huawei Firewall L2TP configuration

    Huawei Firewall L2TP configuration

    1. Basic interface configuration interface GigabitEthernet1/0/0ip address 123.126.109.1 255.255.255.252undo shutdowngateway 1

    Shulou · 2022-06-01 03:46
  • Five Istroke O models of Network programming

    Five Istroke O models of Network programming

    one。 Overview: blocking, non-blocking, synchronization, and asynchronism are often mentioned in network programming. Let me first talk about blocking, non-blocking, synchronization and asynchronism in IBO as I understand them. The five Icano models are blocking Istroke O, non-blocking Imp O, signal driven, and Iamp O multiplexing (these four models

    Shulou · 2022-06-01 03:46
  • SSL/TLS Deep parsing-configure certificate chain and multi-domain name certificates on Nginx

    SSL/TLS Deep parsing-configure certificate chain and multi-domain name certificates on Nginx

    Generate private key and self-signed root certificate (this time use aes256 encryption, password is redhat) # for simple processing [root@www ~] # cd / usr/local/openssl/ [root@www openssl] # mk

    Shulou · 2022-06-01 03:46
  • Add a new network card to cnetos6,centos7, which is not recognized by the system.

    Add a new network card to cnetos6,centos7, which is not recognized by the system.

    Today, when doing the experiment, we need to add a new network card for the virtual, but the system can not recognize it. All kinds of Baidu, google, and all kinds of restart are not successful. I thought that as long as I added a new system, I would recognize it, but the facts are not summarized like this: to rewrite the configuration file of the new network card and modify the HWA.

    Shulou · 2022-06-01 03:46
  • What have been done in those years (preface)

    What have been done in those years (preface)

    Personal introduction: not *, not a technical person, like to use index switch to share your experience, like to solve some practical problems, have some development experience, and have a little understanding of common development languages. I have done some cracking and security protection, and I would like to share with you. Disclaimer: working all these years

    Shulou · 2022-06-01 03:46
  • Talk about data centers in the United States

    Talk about data centers in the United States

    We all know that the best data center in the world is in the United States, because a well-established data center must have energy costs, bandwidth, ease of doing business index, corporate tax rate, labor costs, political stability, natural disasters and public education. Cushman & Wakefie

    Shulou · 2022-06-01 03:45
  • Script,scriptreplay: recording and playback of terminal sessions

    Script,scriptreplay: recording and playback of terminal sessions

    You can make a command-line instructional video tutorial by recording a terminal session, or you can share the conversation recording with others to start recording until you type exit to exit # script-T2 > timing.log-an output.log#exit parameter explanation:-t

    Shulou · 2022-06-01 03:45
  • Linux command-- arch

    Linux command-- arch

    The arch command is mainly used to query the hardware architecture of the system. Select the corresponding vulnerability * * load to carry out * according to the query results! The query result is the same as the uname-m output: root@kali:~# archx86_64root@kali:~#

    Shulou · 2022-06-01 03:45
  • Resolve

    Resolve "Internet Explorer has modified this page to help block cross-site scripting." The "problem"

    Recently, I have been interested in the knowledge of network security, and the book I am reading is the authoritative Guide to Web Application Security recommended on the Internet. This book provides downloading a virtual machine image, which can be run on a computer browser to do the experiments in the book. Page 66 deals with a XSS experiment, normal

    Shulou · 2022-06-01 03:45
  • CRT tools for batch deployment and management

    CRT tools for batch deployment and management

    1. There is a premise to achieve this function, that is, in the previous introduction to the connection, make sure that all the tabs open in the same CRT window, view-- > chat window-> right-click in the blank space of the conversation window to "send interaction to all sessions" and then type the command in the conversation window.

    Shulou · 2022-06-01 03:45
  • Vpp interface data structure

    Vpp interface data structure

    The dpdk_device_t field describes the lockp sending queue lock. When the number of sending queues is less than the number of threads, sending packets to port needs to be locked. Lockp is an array, and each element corresponds to a sending queue, that is, each sending queue has a lock device_index.

    Shulou · 2022-06-01 03:45
  • Java deserialization-how Transformer classes can execute malicious code

    Java deserialization-how Transformer classes can execute malicious code

    Java deserialization-the principle that the Transformer class can execute malicious code 0x00 code Transformer [] transformers = new Transformer [] {

    Shulou · 2022-06-01 03:45
  • Old Brick's in-depth Analysis of WPA2 Security vulnerabilities

    Old Brick's in-depth Analysis of WPA2 Security vulnerabilities

    Recently, the WPA2 was cracked (that is, the KRACK loophole * *), which made a lot of noise on the Internet, because the impact of this loophole was so great that everyone was worried for a moment, so there were people who changed passwords, upgraded the system, patched, wrote strategies, and so on, of which experts were the most active.

    Shulou · 2022-06-01 03:45
  • Online banking security system

    Online banking security system

    Before talking about the online banking trading system, first of all, determine one thing, the balance is not in the bank card, the balance is ultimately in the core system of the bank. Bank cards, online banking and third-party payment platforms are just a few ways of data transactions. Business type of online banking: inquiry category: online account inquiry, balance

    Shulou · 2022-06-01 03:45