ode learning management system

Let's review the previous section:1. Set Password command passwd2. User Information Modification Command usermod3. User Delete command Userdel4. Job: Modify User1 User ID 505, home directory to admin, user Group is admin, finally delete user1 userUsermod–u 505–d/home/admin–g Admin User1Userdel user1In this section, we continue to talk about user management-related commands1. Add User group GroupaddThe use of this command is simple groupadd groupnameAf

changes the destination address of the locally generated package. The postrouting chain changes its source address before the package leaves the firewall.The mangle is primarily used to modify the TOS (type Ofservice, service type), TTL (Time tolive, lifetime) value of the packet, and to set the mark mark for the packet to implement QoS (Quality of service,Service quality) tuning and Policy Routing applications are not widely available due to the need for appropriate routing device support. Fiv

Originally in the online search data inadvertently found this system, share to everyone: Need will maven + Springboot technology can not understand the first of their own Baidu; Learning-oriented open source framework, concise and efficient, reduce the transition package, show the nature of technology Springboot as the basic framework, using mybatis as the persistence layer framework Use the official re

me comfort a lot, in addition to the child his father did a stupid thing to make me angry, all smooth. Well, this week's main content is probably summed up:1Introduction to Simple Linux commands2. Online Help for Linux systems3simple installation of Linux systems4management of users and Groups5. Management of files and directories6. Introduction to File Systems7. Compression \ Decompression and Packaging8Introduction to Remote control commands 0 Basi

not need to enter the passwordThe content format of the password file/etc/rsyncd.passwd is: Username:password, the permission is The command to start the service is: Rsync–daemonDefault to use/etc/rsyncd.conf This configuration file, you can also specify the configuration file rsync--daemon--config=/etc/rsyncd2.confThe available options are: Rsync–daemon--help rsync ip::test:/directory 1/directory 2: Synchronizing data using the test moduleRsync-av--password-file=filename/Directory/directory:

Compression: Tar-jcv-f filename.tar.bz2 The name of the file or directory to be compressedEnquiry: Tar-jtv-f filename.tar.bz2Unzip: tar-jxv-f filename.tar.bz2-c the directory to unzip-P retain original file attributesTar-zpcv-f/root/etc.tar.gz/etcTar-jtv-f/root/etc.tar.bz2 | grep ' Shadow 'Tar-jxv-f/root/etc.tar.bz2 Etc/shadowTape driveTar-cv-f/dev/st0/home/root/etcBackup systemDump restoreDisc WriteMkisofs Creating an Image archiveCdrecord: Disc Burning toolThe compression and packaging of Linu

status, listening portnetstat -lnp-l lists only the service states that are in Listen (listening)-N refuses to display aliases, showing all numbers converted to numbers-P Displays the program name that establishes the associated linkNETSTAT-LNP |grep + port number or service nameYou can see if a service is started, or you can view the process with PSnetstat -ltnpView Only TCPnetstat -lunpView Only UDPNetstat-an List all port statesIf the server you are administering is a server that provides We

that a machine can directly connect to the B machine's 22 port.Take my own environment for example, a machine for windos host, IP for 192.168.226.1b Machine for VMware inside LINUX1, there are two network cards, ENS33 IP for 192.168.226.129ENS37 to 192.168.100.1C Machine for virtual machine linux2, IP for 192.168.100.100Now how to configure can let the host SSH connection linux2?1. Route forwarding is still turned onecho "1" >/proc/sys/net/ipv4/ip_forward2 Configuring routing RulesA on the exec

("company"); // string result = ID + "" + name + "" + company + "\ n"; // TV. settext (result); //} // If (Info = NULL) {// TV. settext ("duanjiefi"); //} else {// TV. settext ("liudandan"); // string name = info. getname (); // string Company = info. getcompany (); // int id = info. GETID (); // int salary = info. getsalary (); // TV. settext ("name:" + name + "\ n" + "Company:" + company + "\ n" + "Salary:" + salary ); ///} // string name = info. getname (); // string Company = info. getcompa

Publish oneArticleManagement System and ForumProgram(Source Code), for learning and use only Article management system:Function Description:1. Read navigation: sort by Article posting time. The last published article is displayed at the beginning. The content includes the article title and the article body containing 50 characters.2. Read ranking:

partition, format, verify, MountSplit: Partition fdiskFind the disk where the root directory is DF//dev/hdc2FDISK/DEV/HDC No numbersD:delete a partition N:add a new partition P:print the partition table Q:quit without saving changes W:write table to disk and exit n:+512mFormat: MKFSMKFS [-T file System format] Appliance file nameMkfs-t EXT3/DEV/HDC6CondLinux Learning -05-disk and file

: freeNote: The difference between caching and buffering--caching is used to speed up the "read" of data from the hard disk, and buffering is used to speed up the data "write" to the hard diskDisplays the system start time and average load, which is the first line of the top command: UptimeView system and kernel related information: uname [options]option:-A To view all relevant information about the

at this point.-L: The system can also use the file system header name (label) to import a row mount, in addition to the device file name (for example,/DEV/HDC6) cookbook. It's best to canceled a unique name for your file system!-O: You can attach some additional parameters after mounting! For example, account number, password, read and Write permissions: RO, rw:

#include #includeDWORD fiboarray[ -];D word WINAPI Fibo (lpvoid Param) {DWORD N= * (dword*) Param; Fiboarray [0] =0; Fiboarray [1] =1; for(inti =2; i ) {Fiboarray[i]= Fiboarray[i-1] + fiboarray[i-2]; } return 0;}intMain (intargcChar*argv[]) {DWORD ThreadId; HANDLE Threadhandle; intparam; if(ARGC! =2) {printf ("need one unsigned integer, 0-47 (inclusive)"); return-1; } param= Atoi (argv[1]); if(Param 0|| param > -) {printf ("need one integer, ranging 0 to inclusive."); return-1; } t

#boot =/dev/SDA--Comment line default=0--Indicates that the kernel is the kernel that is loaded by defaultTimeout=5---Timeout value indicating how many seconds grub waits for the default kernel to loadSplashimage= (hd0,0)/boot/grub/splash.xpm.gz-The location of the splash screen image, providing a background image for the Grub menu Hiddenmenu---Tell grub default hidden menu title Red Hat Enterprise Linux as (2.6.9- +. ELSMP)---The header string root displayed on the kernel screen (hd0,0---Indica

activeSystem to manage unit with target for ease of management systemctl list-unit-files --type=target systemctl list-dependencies multi-user.target //查看指定target下面有哪些unit systemctl get-default //查看系统默认的target systemctl set-default multi-user.target //设置系统默认的targetUnit target Service Three relationships:A service belongs to one type of unitMultiple unit consists of a target,A target contains multiple serviceCat/usr/lib/systemd/

Manager authority is not so heavy, the team member is more independent.3. Organizations that are difficult to measure with KPIs are better suited to OKR, such as research and development, marketing, and other companies ' support departments. And the Manufacturing department, sales department can be linked to orders, sales, profits, etc., they are more suitable for KPIs.Summarize:Okr is a way to help all of the company's staff to maintain a consistent direction, and more effectively to complete

reading and writing test, if the release two times-c-c, will test read and write (Read-write), will be slow ~-L: Can be followed by a header name (label)-j: Originally MKE2FS is EXT2, add-j, will join Journal and become EXT3.7. fsck to check the file system for errors8. Badblocks Check if the hard drive or floppy disk sector has bad track9. Mount,unmount Disk mount and dismountAttention:1) A single file system