prohibited: Password Change
HTTP 403.12-Access prohibited: mappers reject access
HTTP 403.13-Access prohibited: the client certificate has been revoked
HTTP 403.15-Access prohibited: too many access permits from customers
HTTP 403.16-Access prohibited: the client certificate is untrusted or invalid
HTTP 403.17-Access prohibited: the client certificate has expired or has not yet taken effect
HTTP 404.1-not foundWebSite
HTTP 404-file not found
HTTP 405-the resource is forbidden
HTTP 406-unaccepta
the middle of the first two points)
[Ora10 @ localhost DBS] $Env | grep oraCheck again that our environment variable has been modified.
Oracle_sid =Chongshi
Oracle_base =/ora10/product
ORACLE_HOME =/ora10/product/10.2.0/dba_1
PromptIn this example, you do not need to use environment variables to switch back to other users. The environment variable becomes the default environment variable. Of course, you still need to execute../Chongshi. env.
Step 3:Select a database administrator
There are N teams (1 Input inputs have several groups, the first behavior in each group is two n (1Output gives a ranking that meets the requirements. There is a space between the queue numbers at the time of the output, and no space after the last. Other Notes: Qualifying rankings may not be unique, at which point the output is required to be numbered in front of the team; the input data is guaranteed to be correct, i.e. the input data ensures that there must be a qualifying ranking.Sample Inpu
actions:Syntax: GPASSWD group_namegpasswd [-A user_name1,...] [-M user_name2,...] Group_nameGPASSWD [-RR] Group_nameSet a password for a user group when no parameters are added-A: Specify the administrative user for the user group-M: adding user Group members-r: Delete user group password-R: Invalid user group password barFor user group Administrator actions:Syntax: gpasswd [-AD] user_name Group_name-A: Add user group members-D: Delete user Group membersExample:[[emailprotected]~]#groupaddtestg
Reference: http://www.cnblogs.com/xiaoluo501395377/archive/2013/04/01/2992642.htmlThe file structure is a single-tree structure. There is only one root directory. different from the win system . Specific references articlesfile Attributes control permissions: R Read permission, W writable permission, x executable permission. Each permission is represented by a number: r==4 (+), w==2 (010), X==1 (001)Example:-rwxrw-r--1 501 502 Test.java[-] [RWX] [rw-]
1. List the user names of all logged-in users on the current system, note: The same user logged in multiple times, only one time is displayed[email protected] ~]# who | Cut-d '-F 1 | Sort-uAdminRoot2. Remove the shell that is the user's default shell on the current system.[Email protected] ~]# CAT/ETC/PASSWD | Cut-d:-F 7 | uniq-c | Sort-n | Tail-125/sbin/nologino3. Change the information in the third field in the/etc/passwd to the/tmp/maxusers.txt file with the largest number of the first 10 use
Password, locked user, Cat/etc/shadow check password, there is a password in front of it!-u:–unlock: Unlocking user passwords-C:YYYY-MM-DD: Specify the user account expiration time-F Day: Specify user inactivity Time[[email protected] ~]# ID Adminsuid=509 (admins) gid=510 (admins) groups=510 (admins)[Email protected] ~]# usermod-g zcl1840-ag zcl4,zcl5 Admins[[email protected] ~]# ID Adminsuid=509 (admins) gid=500 (zcl1840) groups=500 (zcl1840), 505 (Zcl4), 506 (ZCL5)[email protected] ~]# ID Zcl
Manually add a user Nokia, specify the default shell is/bin/bash, home directory is/home/inokia, the password is valid for 10 days, the password expires 3 days before the warning, after 2 days after the expiration of the password can not be signed in.Ideas:First step: Enter/ETC/PASSWD edit#vim/etc/passwdNokia:x:501:501:nokia Nokia:/home/nokia:/bin/bash650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M
file system type is NFS; Files created in the shared directory are mapped by the owner and the group is nfsnobody, but can also go to the free to specify the mappings of the owner and the groupGo to the service side:Change the permissions of the/MNT directory to 777Go to the client:You can create a file under/opt, with no restrictions on permissions[[email protected] opt]# Touch 1.txtService side:Specify both user and group for all users to be 501:/m
1. restricting users who use the SU command The root user in the Linux system is too large, so in practice it is generally logged in as a normal user, and can be switched to the root user when needed. Switch user identities using the SU command.However, we may not want all users to be able to switch to root, but just want to specify that a user can switch, such as allowing only Zhangsan users to switch identities using the SU command.To restrict users who use the SU command, you need to set up
Mount: Mount commandMount/dev/sda2/mnt/serverCd/mnt/serverYou cannot uninstall in the/mnt/server directory, or if you have a program that uses a disk in mount.Du-s look at the size of the folderDu-h Mark K or MUsage of DF ResourcesDf-h Mark K or MSu-Completely switched pastSu didn't switch over completely.Linux User and Group managementUseradd passwd Userdel groupadd gpasswd GroupdelUseradd--/etc/passwd--/etc/shadow--/etc/group--/etc/gshadowCreate a/home/shrek at the same timeThen CP to/etc/skel
406
Not acceptableNot acceptable
407
Proxy Authentication RequiredAgent needs validation
408
Request TimeoutRequest Timeout
409
ConflictConflict
410
GoneNo longer available
411
Length RequiredNeed to provide length
412
Precondition FailedPrerequisite failure
413
Request Entity Too LargeRequest entity too large
414
Request URI Too Long URIRequest URI is
activation and mail package, delete save on it. (Remember to refresh the reference package in the IDE)
2.2 JAVAX.MAIL.MESSAGINGEXCEPTION:501 Syntax:helo hostname
After the local test passed, I deployed to the Linux server, but ran into the javax.mail.messagingexception:501 syntax:helo hostname exception, Google found the following reasons:
Javamail in the local hostname will dig change hostname, and the
." Therefore, the primary key should also be the same as the index, which can be used for both individual fields and multiple fields.For example, I live in 3 units, 501 room, my name is Keoko, then only 3 unit 501 room in this community table only to determine my home. Because 2 units, 501 of the room may also be a Keoko, so there are only two fields to determine
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