If your organization already relies on multi-tier enterprise Java applications, you may be closer to the future of wireless technology than you might think. By describing a sample application, Aashish Patil shows you how to connect your existing enterprise Java infrastructure components to a wireless network with minimal human resources. Using existing EJBS, modified Servlet, and new WML and WMLScript pages can make a leap in this process.
The Wireless Application protocol (Wireless application
1. Add Userssudo adduser UserNameAbnormal:sudo adduser--force-badname Then add additional auxiliary information for this userSwitch User: Su UserNameSu JesseliView Current User: WhoAmIWhoAmIRemove password for password-free loginsudo passwd-d Jesseli Delete Usersudo userdel JesseliView CodeCreate a groupsudo groupadd testgroupDelete a groupsudo groupdel testgroupCreate a user and assign to a specific groupsudo adduser jesseli testgroup Linux Add Users (user),
format is Yyyy-mm-dd is the eighth field in the/etc/shadow information!-F: After the number of days, the seventh column of Shadow.-G: After the initial group, modify the fourth field of/etc/passwd, that is, the GID field!-G: Follow the secondary group, modify the user can support the group, modified is/etc/group ~-A: With-G, you can ' add support for secondary groups ' instead of ' Settings ' Oh!-L: followed by the account name. That is, modify the a
scripts in Skel are assigned to each by a script file that is already defined.Newly added user under/home/, here when read/etc/login.defs this fileThe umask set here is 077, so the permissions for the last created folder are 700.Instead of manually joining the user, under Home, add the user folder with the same name as above#mkdir/home/zhy2, the permissions created for this folder will not be affected by/etc/login.defs, it is based on the umask value of its parent folder, so the right to manual
Freelist header, the block is also removed from the freelist, the term unlink. When there is data deletion (delete), only if the data in the block is deleted to a certain extent, the chunk is then added to the freelists, which is the value defined by the pctused parameter, as in our case, only the data in the block is reduced below 40%. , the block is again allowed for new data. By the description above, you know that the so-called freelists is a list of all the blocks of data that you can use
Can and, popular say is "can achieve", add subject and object, in " Interactive design " This big context, the meaning should be "user can achieve own operation goal", this is not and "validity-user's operation is effective" repeat? In fact, in the interactive Design Practical Guide, "Can and" is a narrow concept, is placed under the validity of, specifically explained that " color blindness, physical disability and other special people can complete the basic operation." To expand, this particul
Web page Production WEBJX article introduction: Complex page visual design: well-organized groups of buttons.
Button grouping
The grouping of buttons allows an interface to become self-describing. In a complex layout, a well-organized set of buttons is chosen, and because it is obvious, it can quickly tell the user what features are available.
Several buttons are put together because they may accomplish similar functions. We can see the
Information for the file to be set:
v0id6@v0id6-eof ~ $ ls Testacl-la
-rw-rw-r--+ 1 v0id6 v0id6 9 March 2 14:21 testacl
Gets the access control list for the file (this is the value before the SETFACL setting is used)
v0id6@v0id6-eof ~ $ getfacl Testacl
# File:testacl
# OWNER:V0ID6
# GROUP:V0ID6
user::rw-
group::r--
other::r--
Configure permissions for multiple groups to read and write
v0id6@v0id6-eof ~ $ setfacl-m G:V0ID6:RW,G:YYGYDJTEST:R
Information for the file to be set:
v0id6@v0id6-eof ~ $ ls Testacl-la
-rw-rw-r--+ 1 v0id6 v0id6 9 March 2 14:21 testacl
Gets the access control list for the file (this is the value before the SETFACL setting is used)
v0id6@v0id6-eof ~ $ getfacl Testacl
# File:testacl
# OWNER:V0ID6
# GROUP:V0ID6
user::rw-
group::r--
other::r--
Configure permissions for multiple groups to read and write
v0id6@v0id6-eof ~ $ setfacl-m G:V0ID6:RW,G:YYGYDJTEST:R
At the end of the year, it was reported that social networking giant Facebook was quietly testing new shopping tools to help users more easily buy or sell goods in the groups group, which today is officially open to all users. A "sell" button is added next to the Compose button, which allows users to share the selling items directly through the option, which also reserves the opportunity to introduce the products sold and to clearly display the sellin
Once ordinary families have a computer that is a great thing, now ordinary people have several computers in the home is very normal, if you need to transfer files between several computers in the home, you will choose what method? use QQ to pass, with u disk cuff? These two methods are the most common, it is not difficult to operate, but the number is still a bit of trouble, Especially in the absence of QQ or can not find a U disk in the case. In fact, as long as a few computers are installed in
Label:SQL Server error log (AG)The SQL Server error log records the time that affects AG, such as:1. Interacting with Windows failover clusters2. Status of available replicas3. Status of available dataStatus of the 4.AG endpointStatus of the 5.AG listenerLease status for 6.SQL server resource DLLs and SQL Server instancesError events for 7.AGYou need to check the error log when the following status occurs:1. Unable to connect to the availability database2. Unexpected AG fail-overThe resolving st
Tags: com ROM other packet HTTP implementation weight practice styleWe often have this requirement in our production practice: Group numbering. There is a City area table region as follows: We need to group the above table region by city and sort the region to get the following result: The specific SQL is as follows: 1 Select city,region,
2 Right ('+'+row_number ()over byorderby region),2 as region_no
3 by region This method mainly uses the over function by grouping the city, then sorting
about making SQL queries sorted by field me_createtime by monthUse functions: Date_format Group queries by month and sort by monthOn the Code$sql = "Select Date_format (me_createtime, '%y-%m ') as Create_month,count (me_id) as Me_num from {$SETTING [' db '] [' prefix '] }member where Me_state in (the) and sm_id= ' $sm _id ' GROUP by Date_format (Me_createtime, '%y-%m ') Order by Date_format (Me_cre Atetime, '%y-%m ') desc "; SQL query groups data by
is lost, it will take a long time to recover, and sometimes even the information system has to be restarted from the system initialization stage. Daily data backup is an important means to ensure the security of the system. Data backup needs to be done in strict accordance with the pre-established backup and recovery strategy, and to implement backup registration and inspection measures. In addition, the system sets the user's identity to identify whether it is a legitimate user, and requires l
select*fromtest;
No
Time
Name
1001
20141226
Zhangsan
1001
20141227
Lisi
1002
20141228
Wangwu
1002
20141229
Zhaoliu
Select* from(SelectRank()Over(Partition byDocumentnoOrder byTimedesc)R,A.* fromTest A)whereR=1;No Time Name----- ----------- ----------1001 20141227 Lisi1002 20141229 ZhaoliuOracle groups The fir
Tags: permissions own Bubuko account ID own its COM linThe user of the Linux system is a sub-role, the user's role is identified by the UID and GID (that is, the system identifies the user's UID, GID, rather than the user user name), there is a UID is unique (the system is the same as the identity card) to identify the system user account (user name)1, system administrator root of the Udi/gid are 02, the ordinary user (admin add), the default it Uid\gid is from 500--65535, the permissions are sm
Run the ASMCMA command as a grid user
[Email protected] database]# su-grid11grac1-> ASMCA650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/71/5C/wKioL1XMbwSBwXMzAAGAHV7qvKw654.jpg "title=" ASM01. PNG "alt=" Wkiol1xmbwsbwxmzaagahv7qvkw654.jpg "/>We have set up a disk group when we installed the grid and now click the Create button to create another disk group650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/71/5C/wKioL1XMb1zgw-QzAAMu5kapFP0581.jpg "title=" ASM02. PNG "alt="
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