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  Analysis of slow query caused by the use of PreparedStatement in PostgreSQL

  Experimental environment: DB is PostgreSQL version 8.2.15JDK1.8 test 1 uses JDBC to query a SQL:public static void test1 (String url, Prop)

  2022-06-01 03:55:55 Views: 216
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  Unity 2017 Code encryption

  According to statistics, among the tens of thousands of games on the market, most of them have security problems such as cracking, malicious code insertion, advertisement insertion, plug-in, secondary packaging and so on. The hidden dangers brought by these security problems for enterprises are the increase in the difficulty of research and development, the increase in the cost of research and development, the reduction of players' willingness to pay, the loss of fairness in games and the loss of players.

  2022-06-01 03:55:45 Views: 217
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  How to optimize the opening speed of the website?

  How can the access speed of the website be tested? IIS7 website monitoring detects information such as whether the website is hijacked, whether the domain name is walled, DNS pollution detection, website opening speed detection and so on. For every 100 milliseconds increase in the opening time of the home page, the sales of the website will decrease by 1%. Therefore, the website loading speed is very important!

  2022-06-01 03:55:45 Views: 249
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  OWASP Broken Web Applications Project

  Find a target machine to practice http://sourceforge.net/projects/owaspbwa/DescriptionOpen Web Application Security Project (OW)

  2022-06-01 03:55:41 Views: 292
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  Talking about Interface

  Interface: let's take a look at the following paragraph: if you're about to start programming, it feels like you need a lot of classes, some of which you already know in advance what common features you need. What shall I do? Of course, the first thought is to set a model for them in advance and what kind of methods they are.

  2022-06-01 03:55:38 Views: 277
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  Software-defined flash memory: accelerating flash memory scale application

  Over the past few years, we have witnessed a limitless consumer thirst for flash memory, which has rapidly created a $1 billion industry. According to statistics, the sales of flash memory used by consumer electronic devices, including iPhone, tablets, ultrabooks, etc., account for 85% of the total flash memory market.

  2022-06-01 03:55:38 Views: 278
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  Common routines of iptables

  Iptables common routines [iptablesfilter table common routines] (Note: the following "[INPUT | FORWARD]" means INPUT or FORWARD) # (1) improve firewall efficiency: existing connections are directly let go (mandatory

  2022-06-01 03:55:37 Views: 298
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  Qianyitang Ander net worker Certification 1000 (continuously updated)

  1. This (HCIE) is decided by what, but? Answer: exam 3 stages: written test through the standard: 600 stroke 1000 results on the spot LAB pass standard: 800 scarp 1000 5 working days interview pass standard: no publication standard! two。 What if you just sign up for an interview?

  2022-06-01 03:55:37 Views: 241
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  Heaven-fed coverage scheme

  Antenna-fed coverage, as the name implies, is the use of AP, plus feeder, plus ceiling antenna to build wireless network. Thus, the use of AP is reduced to reduce co-channel interference. Working principle: the AP used in antenna-fed coverage is high-power industrial-grade wireless AP, and its power is 7-8 times that of ordinary household wireless routers.

  2022-06-01 03:55:37 Views: 231
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  H3C configuration SNMP

  SNMP Network Management [Quidway] snmp-agent launch Agent function [Quidway] snmp-agent community read public configuration read community name [Quidway] snmp-agent

  2022-06-01 03:55:36 Views: 244
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  The difference between Safety and Security

  For a long time, we have been trapped by the difference between Safety and Security, both of which mean safe in Chinese, but there are still some differences between the two words in English. Safety: in a safe state (The state of being sa

  2022-06-01 03:55:36 Views: 213
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  Use nc file transfer

  1 first establish a connection to the file to be sent using: nc-l port number < file path 2 receiver receives the file using: nc sender IP port > file name

  2022-06-01 03:55:31 Views: 250
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  Links between rout

  The usual encapsulation technologies are Ethernet encapsulation, PPP and HDLC encapsulation, Ethernet is often used for the connection between Lans, and the latter two are often used for WAN encapsulation. Authentication configuration of PPP: 1 encapsulates PPP protocol. Encapsulation PPP2 is recorded on this router.

  2022-06-01 03:55:26 Views: 247
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  Xss is easy to use

  Xss vulnerabilities here I use the target machine dvwa to briefly introduce reflective xss vulnerabilities. Cross-site scripting (Cross Site Scripting) for cascading stylesheets (Cascading Style Sheets, CSS)

  2022-06-01 03:55:26 Views: 281
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  Talk about the corresponding relationship between IP address and subnet mask, as well as binary and decimal detailed explanation!

  Hello, everyone, I am taking you to grow the structure of Fan ~ IP address: # length 32 bit; first # structure-network bit + host bit subnet mask:-function distinguishing network bit and host bit in IP address must correspond to IP address one by one, appear in pairs;-represent pure binary point

  2022-06-01 03:55:26 Views: 257
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  Talk about certificates & how to obtain certificates by mdash;—

  I have seen many friends install IIS-based certificate application sites on AD CS servers in order to facilitate the application of certificates when setting up PoC environment or even production environment. Although IIS is much more secure than it used to be, install IIS on the AD server. First

  2022-06-01 03:55:18 Views: 299
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  Debian Redhat standard network card configuration

  For Debian Linux temporarily sets ip, and then logs in to root@ubuntu:~# ifconfig eth0 10.11.12.2/24root@raspberrypi:~# vim / etc

  2022-06-01 03:55:18 Views: 259
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  A collection of common questions on information security in the thoughts of information security

  Some time ago, a customer asked our technical staff, I have bought the latest security solution on the market, and I have invested a lot of money to buy security protection equipment, but the security problem has not been solved yet. Why? In fact, many people have the idea that here, software evaluation in Shandong Province

  2022-06-01 03:55:13 Views: 204
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  Fundamentals of Network principles (1)

  Figure 1: the voltage is applied to the A terminal of the communication model protocol of the two hosts, and the voltage signal is instantly received by the B terminal. The voltage signal is divided into high voltage and low voltage, that is, 0 and 1. If An and B have an agreement in advance,

  2022-06-01 03:55:13 Views: 255
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  The principle and example configuration of Huawei Firewall VRRP dual Hot standby

  Blog catalogue: first, what is the dual-computer hot backup? What is VRRP? 3. Two roles of VRRP. 4. Three state machines of VRRP. 5. The process of VRRP electing Master router and Backup router. 6. Unified management of VRRP backup group through VGMP.

  2022-06-01 03:55:05 Views: 230