isc ccsp

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The use of vector geometry in game Programming 2

two modulo equality vector C is collinear with C ' . Let's finish it: ( B ' . A1 ) =-( b.a1 ) = ( B '. A1 ) = ( b.a1 ), good, substituting C = ( b . A1 ) * A1 , get C= -(B '. A1)*A1= (B '. A1)*A1=-C = "c = (b. A1)*A1 = (-B '. A1)*A1C ' = (b '. A1)*A1 = (-B. A1)*A1So far, we have come to the conclusion that when a vectorbwith another vectoraThe angle between (0, PI/2) (3*PI/2, 2*PI), it is inaThe projection vector in the directionCIt isC

Ubuntu-16.04 Building DHCP Service

Ubuntu-16.04 Building DHCP service One, what is DHCPDHCP (Dynamic Host Configuration Protocol) is commonly used in large local network environment, the main role is centralized management, assigning IP address, so that the host in the network environment to obtain the dynamic IP address, gateway address , DNS server address and other information, and can increase the usage of the address.Second, install the DHCP service softwareInstall Isc-dhcp-server

ubuntu14.04 Deployment Kickstart

Tags: eth0 default tftp res boot apache2/etc/otl swaTransferred from: http://www.mamicode.com/info-detail-1646465.htmlThe kickstart is used for the automatic installation system of the inner network.Installing a system using PXE requires the installation of services such as Dhcp,tftp,http (and, of course, other file sharing methods such as NFS,FTP).Lab Environment:1. VMware 122. Network segment 10.0.0/8, PXE server ip:10.0.0.100First, install DHCP serviceYou can choose to install

Security risk 1

to the CCSP course and listened to only one section. I understood why the OpenBSD team despised the people who spent money on VPN and firewall. Because hundreds of thousands of devices can do the same thing, a free operating system can do the same thing without being inferior to a professional device. If you use OpenBSD as a gateway routing system, you have to log on through ssh most times, instead of telnet. It should be noted that Cisco's IOS is a

Pxe+kickstart Automatic Installation ubuntu14.04

This article refers to a number of articles, first thanks to the authors of these articles.Installing a system using PXE requires the installation of services such as Dhcp,tftp,http (and, of course, other file sharing methods such as NFS,FTP).Lab Environment:1. VMware 122. Network segment 10.0.0.0/8, PXE server ip:10.0.0.100First, install DHCP serviceYou can choose to install Isc-dhcp-server or DNSMASQ (which is used more in OpenStack, and it also inc

Install and use dhcp server in Ubuntu 12.04

Simple DHCP server When creating an HDFS cluster, I deeply feel that it is inconvenient to add the configuration in/etc/hosts. inconsistency may cause errors and heavy workload. It is also convenient to create a dhcp server in the LAN. Official documents: https://help.ubuntu.com/community/isc-dhcp-server First, create a KVM virtual machine. The OS is Ubuntu 12.04. Then install the dhcp3 server apt-get install isc

SmartClient Introductory Tutorial VII

team development standards to decide. Of course, in a large project, the amount of code is extremely large, may need to be more refined distinction, the advantage of this is conducive to teamwork and the code of the neat, and later debugging, testing and maintenance convenience. So in the end, our homepage file may look like this: Note that we put the entry file of the program at the end, because all program code must be defined before the project is started, or an exception will be generated.

Cocos2d-x used in Switchcontrol

" when the Controlswitch control closes cclabelttf* off = cclabelttf::create ("Off", "Arial", 16); Sets the color of text opened by the Controlswitch control On->setcolor (CCC3 (0, 0, 0)); Sets the color off->setcolor when the Controlswitch control is turned off (ccc3 (0, 0, 0)); Create Controlswitch controls cccontrolswitch* control = Cccontrolswitch::create (Ccsprite::create ("Switch-mask.png"), CCSp Rite::create ("Switch-on.png"), Ccsprite::c

Topological sorting + not a dictionary order precedence Arrangement (poj3687+hdu4857)

First, prefaceIn the past week, the end of the CCSP game, which has a problem card I 9 hours, all kinds of debugging can not complete the mediation to the problem, so the pain decided to start the problem, this is part of the plan. In fact, based on the wrong understanding I wrote a number of topological sorting + dictionary order algorithm, but the collective unity GG, and finally found that, in fact, the design is not strictly the smallest dictionar

Ubuntu Wireless to cable tutorial

GroupdefaultQlen +Link/ether c8:e7:d8:fd:9c: +BRD ff:ff:ff:ff:ff:ffinet192.168.90.102/ -Brd192.168.90.255ScopeGlobalWlan0valid_lft Forever preferred_lft foreverinet6 fe80::cae7:d8ff:fefd:9c78/ -scope link Valid_lft forever Preferred_lft forever4: br0: theQdisc Noqueue State down GroupdefaultLink/etherxx: e0:4c:0e: the: 1a BRD ff:ff:ff:ff:ff:ffinet192.168.20.2/ -Brd192.168.20.255ScopeGlobalbr0valid_lft Forever Preferred_lft Fore[Email protected]:~$ sudo apt-GetInstall

Linux DNS source code compilation installation (v)

The compilation and installation of DNS source code,Official bind:www.isc.orgHere we are compiling the bind-9.9.5.tar.gz version1. Compiling environmentDesktop Platform DevelopmentDevelopment toolsServer Platform Development2. Expand the installation package to view the compile commandFirst we should look at the server time,[Email protected] ~]# tar XF bind-9.9.5.tar.gz-----Expand the installation package[Email protected] ~]# CD bind-9.9.5[[email protected] bind-9.9.5]# ls--------------into the

How to use Ng-class in Angularjs

= false; $scope. IsC = false; } Function Ctrl ($scope) { $scope. IsA = true; $scope. IsB = false; $scope. IsC = false;}[HTML]View PlainCopyPrint? Div ng-class="{' A ': IsA, ' B ': IsB, ' C ': IsC}">Div > When Isa is true, a style is added, and when the ISB is true, the B style is added, and when

Using Vtun Bridge to establish a remote multi-to-many virtual network

Debug server:Environmental Utbuntu 14.04 Installation must be softwareApt-get Install Isc-dhcp-server Vtun bridge-utils Modify/etc/network/interfaces to increase debugging with an excuseIface debug0 inet StaticAddress 10.254.0.1Netmask 255.255.0.0pre-up Brctl ADDBR debug0 Configure the ISC-DHCP server to enable DHCP server for the DEBUG0 interfaceModify/etc/default/isc

Linux network settings Advanced Guide

. This article is based on the Debian/Ubuntu system. For more information, see chapter 5th of Debian Reference. Of course, this article still has many shortcomings, such as not going deep into the Linux kernel mechanism, which needs to be further improved. Static settings mean that all configurations are written in the configuration file and are automatically set by the operating system. Static settings depend on software packages such as udev, ifupdown, isc

Basic Webpack usage and Webpack usage

file in app. jsRequire ('./login '); Document. write ("Welcome to Big Hair Concerts !! Baby ");Console. log ('app loaded ');→ Enter http: // localhost: 8080/in the browser/You can see the changes.→ Add another utils. js file under the projectConsole. log ('logging from the utils. js file ...');→ Configure webpack. config. js as follows:Module. exports = {Entry: ["./utils", "./app. js"],Output :{Filename: "bundle. js"},Watch: true}→ Navigate to the current project through the command line→ Re-en

Use Raspberry Pi as a 3G wireless router

. Enter the command to install the dhcp service sudo apt-get install isc-dhcp-server Backup configuration file sudo mv /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.bak Edit a new configuration file sudo nano /etc/dhcp/dhcpd.conf Copy and paste the following content default-lease-time 600;max-lease-time 7200;log-facility local7;subnet 192.168.10.0 netmask 255.255.255.0 { range 192.168.10.10 192.168.10.100; option routers 192.168.10.1; option broadc

Webpack Basic Usage

file under the projectConsole.log (' Logging from the Utils.js file ... ');→ Come to webpack.config.js under configuration as follows:Module.exports = {Entry: ["./utils", "./app.js"],Output: {FileName: "Bundle.js"},Watch:true}→ Command line navigation to the current project→ Re-enable webpack DevserverWebpack-dev-server→ The corresponding changes are reflected in the http://localhost:8080/An example→ Create a folder called Demo→ Command line navigation to the Demo folder→ Create Package.json fi

Raspberry Pi made into router

/wpa_supplicant/wpa_supplicant.conf#iface default inet DHCP Wireless-essid adsl-wifi-c91f44 Wireless-key 1234567890address 192.168.1.100netmask 255.255.255.0gateway 192.168.1.254Step Two:Erecting a DHCP server on the Raspberry Pi[Email protected]:~$ sudo apt-get install Isc-dhcp-serverEdit dhcp.conf File[Email protected]:~$ sudo vi/etc/dhcp/dhcpd.confAdd the following lines at the end of the dhcp.conf fileSubnet 172.16.1.0 netmask 255.255.255.0 {range

CentOS tutorial on configuring smart DNS with BIND

-dmysql_unix_ Addr=/byrd/service/mysql-5.6.28/tmp/mysql.sock-dmysql_user=mysql-ddefault_charset=utf8-ddefault_collation=utf8 _general_ci-denabled_local_infile=on-dwith_innobase_storage_engine=1-dwith_federated_storage_engine=1-dwith_ Blackhole_storage_engine=1-dwithout_example_storage_engine=1[Root@master mysql-5.6.28]# make amp;amp; make install[Root@master mysql-5.6.28]# Groupadd MySQL[Root@master mysql-5.6.28]# useradd-s/sbin/nologin-g mysql MySQL[Root@master mysql-5.6.28]# ln-s/byrd/service/

Raspberry Pi 2 wireless settings.

Main references:0.https://www.raspberrypi.org/forums/viewtopic.php?p=462982#p4629821.https://www.maketecheasier.com/set-up-raspberry-pi-as-wireless-access-point/2.http://www.jenssegers.be/43/realtek-rtl8188-based-access-point-on-raspberry-pi3.https://www.embbnux.com/2015/02/08/setup_raspberry_to_wifi_access_point_with_rtl8188/4.http://www.christianix.de/linux-tutor/hostapd.html5.http://www.cnblogs.com/zhuwenger/archive/2011/03/11/1980294.html===============================================Part 1G

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