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/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgvzdgnzx2ru/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast "/>Here is the default service name or MySQL, we changed to MARIADB. The default port is still MySQL 3306, we change to 3308, nextwatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgvzdgnzx2ru/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast "/>Already installed! Copyright notice: This article Bo Master original articles, blogs, without consent may no
BtrfsBtrfs (b-tree file system, commonly read as Butter Fs,better FS or B-tree FS), a file system that supports write-time replication (COW), can consist of multiple underlying physical volumes. In addition, the file system supports RAID, data and meta-data check code (checksum), sub-volume, snapshot and transparent compression function.File
| XargsScreenInstallation via Yum install-y screenAllows the program to log logs in the backgroundUse screen to start a shell, even if the current link is closed, the program can run the end of theEquivalent to a child shellScreen-ls: can see ID numberScreen-r ID/Name: can be counted into a screenScreen-s (UPPERCASE) Name: You can customize a nameCurl: You can access a website in the command window, out of an HTML source-I: Can look at head-X: You can specify a proxy/etc/hosts can set the host-
detailed parameters for a connection:[[emailprotected]~]#nmcliconnectionshowens33connection.id: ens33connection.uuid: bccbb325-a79e-4ab1-b928-be7b79029771connection.interface-name: --connection.type: 802-3- ethernetconnection.autoconnect: yesconnection.timestamp: 1420706040connection.read-only: noModify each of the properties of the connection through modify:[Email protected] ~]# NMCLI connection Modify Ens33 connection.id "Eth1"To add a network connection for the NIC:[Email protected] ~]# nm
=" Wkiol1jscifw0qilaaabkmuxfc8272.png "/>Note: Incorrect string value: ' \xe7\x99\xbb\xe5\xbd\x95 ' for column ' LBL ' error when testing whether Svnadmin is running properlyWorkaround: Enter the Svnadmin database to execute the following statementALTER TABLE i18n MODIFY COLUMN lbl VARCHAR (255) CHARACTER SET UTF8 COLLATE utf8_unicode_ci not NULL; 4. using JsvnadminA), create a library650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M00/8F/09/wKioL1jSCuuB22kCAABcujcoWpM483.png "title=" 1
(APP)
Creating databases and Configuration databases
Configuring templates and Static file correlation
Comment out the CSRF line in settings.py
6. Django Template language (rules for string substitution)1. {{variable}} {{variable.}}2. For loop{% for I in xx%}{{i}}{% ENDFOR%}Forloop.counter---count3. If judgment{% if condition%}Things to do when conditions are established{% Else%}Conditions are not set up to do the thing{% ENDIF%}Specific code or to GitHub to see it! Links: Http
Commands for System Management classescommands for the System Management class : # shutdown (command) [option] ... Time -r : Restart
h: shut down
-c : Cancel restart or shutdown command
time format:
now
Span style= "font-size:14pt" >
/s txcmp/s rxmcst/s12:10:01 AM Lo 0.00 0.00 0.00 0.00 0.00 0.00 0.0012:10:01 AM eth0 0.62 0.04 0.04 0.01 0.00 0.00 0.0012:10:01 AM eth1 0.59 0.01 0.04 0.00 0.00 0.00 0.00RXPCK/S indicates the number of packets received per second txpck/s Indicates the number of packets per second rxkb/s amount of data received per second txkb/s amount of data sent per second5 free View memory conditionTotal used free shared buffers cachedmem:1906900 274296 1632604 232 24268 111232-/+ buffers/cache:138796 176810
pages of the server, and the server should know by some means that it is a client and needs a session object.3) Destruction:There are only three ways to destroy a session:1. Call the Session.invalidate () method2.session expired (timed out)3. Server restartThe Tomcat default session time-out is 30 seconds.There are two ways to set the session time-out:1.session.setmaxinactiveinterval (time);//Unit is seconds2. Configuring in Web. xml10(Note: the Web. XML document is in the Web-inf directory of
Tags: file results Parameters GPO Technology share GROUPMOD Set password article public numberLet's review the previous section:
Set password command passwd
User Information Modify Command usermod
User Delete command Userdel
Job: Modify User1 User ID 505, home directory to admin, user Group for admin, and finally delete user1 user
Usermod–u 505–d/home/admin–g Admin User1Userdel user1In this section, we continue to talk about user ma
Tags: System/OPS LinuxReview the contents of the previous section:1. Scheduled execution of Task commands Crontab–e, crontab–l,crontab–r2. Job: Define a timed task to output Hello World to the/tmp/test.txt file every minuteCrontab–e*/1 * * * * echo ' Hello World ' >>/tmp/test.txtIn this section, let's take a look at file and directory management1. Computer operating system using directory organization files
The System physical page is managed by the (page Frame number database) abbreviation PFN, which is actually an array, and each physical page corresponds to a PFN item.The address space of the process is managed through VAD (Virtual address destriptor). Each process has an AVL tree to hold these VAD nodes to record the addresses and attributes used.The memory address attribute of a process is divided into reserved and committed, which is the actual all
the AT–C task IDAbove, only the most core information is displayed, you can see our command is LL.The time format of the AT command can beMinute??? At now + 5 minutes?? The task runs after 5 minutesHour????? At now + 1 hour????? The task runs after 1 hoursDays????? At now + 3 days????? The task runs after 3 daysWeeks???? At now + 2 weeks???? The task runs after two weeksFixed???? At midnight????????? Task runs at midnightFixed???? At 10:30pm?????????? Task at 10:30 in the eveningFixed???? At 23
rootfs: Root file System /boot: System startup related files such as kernel, INITRD, and Grub (bootloader) /dev: device files Device files: block devices: Random access, data blocks Character Devices: Linear access, by character device number: Master device Good (major) and secondary device number (minor) /etc: Config file / Home: The user's home directory, each user's home directory usually
"]==data["id"]) {Con[i]=data; Flag=true; Break; }} result.msg= "The modification failed, the customer needs to be modified does not exist"; if(flag) {Fs.writefilesync (Custompath,json.stringify (con),"Utf-8"); Result={code:0, msg:"Modified successfully"}} res.writehead (200,{' content-type ': ' Application/json;charset=utf-8; '}); Res.end (json.stringify (result)); }) return; } //If the requested address is not one of these, the prompt does not existRes.writehead (404,{' conten
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: Command history buffer size[Echo $HISTSIZE]The use of command history tips:!n: Executes the nth command in the command history!-n: Executes the last nth command in the command history!: Executes the previous command!string: The most recent command in the command history that starts with a specified string!$: Reference the last parameter of the previous commandShortcut key: esc+. or ALT +.Command aliases:Alias cmdalias= ' COMMAND [option] [argument] 'Ualias cmdalias: Canceling command aliasesCo
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