Search Results

Search found 2186 results on 88 pages for 'adf 11g'.

Page 80/88 | < Previous Page | 76 77 78 79 80 81 82 83 84 85 86 87  | Next Page >

• 11gR2 PSR?Solaris ZFS???????~2011?2??????????(???)

  - by Yusuke.Yamamoto

  2011?2???????????(???)?????????????????? ????????????·?????????????? ?????????????Patch Set Release(11.2.0.2) ??????/????????????? ???PSR???????????????????????????????? Oracle Database 11gR2(11.2.0.2)????????????:???PSR???????? ?????????????DWH???????????????? BI????????????????????????????????????????????????????? ??????????????????? Oracle????????????????~BI/DWH????????(1) ?????????????????~BI/DWH????????(2) Mview??????????????~BI/DWH????????(3) ???2??????????????????Oracle Exadata ? Solaris ZFS ??? Oracle Exadata ????·?????????????????????????????????????????????? ????????? Solaris ????????????????????????????? ?????????????!??Oracle Exadata?????? ????????ZFS ???!?????????????????? ?? ???? ???? ??? ?????? ??????????????!? Oracle Database 11g Release2 - Windows? ??????????? ??? ?????? ??????Oracle Database 11gR2(11.2.0.2) ????:??????/??????? New! ??? ??????(RAC) ?????????Oracle Database 11gR2 RAC ?????????·??? ASM ? Microsoft Windows x86-64 ??? ?????? ??????Oracle Database 11gR2 Oracle Grid Infrastructure ?????? ??? ???? ???????????????!? ?????????? ??? ???/?? ???????/??????????!? Oracle?? ~????????~ New! ??? APEX ?????????Oracle Application Express 4.0 ????????? New! ??? ??????? ???????/?????!! ???????·?????? ~Statspack??~ ??? DWH ????????DWH????????????????·???????? New! ??? ??????? ???????/??????????!? Export/Import???

  Read the article

• Oracle?1????!?????????????????

  - by Yuichi Hayashi

  ????Oracle????????????????????????????????????????! ????PDF?????WMV?/?MP4? 1. ??????????????:?????????????????????????????! ·???!Oracle Database????!? ?PDF? ?WMV? ?MP4? 2. Oracle Database??????:Oracle Database ????????????????????! ·???????!? Oracle?? ~???~ ?PDF? ?WMV? ?MP4? ·???????!? Oracle?? ~????????~ ?PDF? ?WMV? ?MP4? 3. Oracle Database ??????:????????????????????????????! ·??????????????!??????????-??? ?PDF? ?WMV? ?MP4? 4. Oracle Database ?????:???????????????????????! ·???????!???????·?????? ?PDF? ?WMV? ?MP4? ·???????!????????·???????? ?PDF? ?WMV? ?MP4? 5. ORACLE MASTER???????:?????????????????????! ·ORACLE MASTER Bronze?Bronze DBA11g? ?PDF? ?WMV? ?MP4? ·ORACLE MASTER Bronze?11g SQL???? ?PDF? ?WMV? ?MP4? ??? ¦????????????????????????/????????? ·???????!?????·???????ABC ?PDF? ?WMV? ?MP4? ¦??/OS/Application Server?????????? ·Java???! ?PDF? ?WMV? ?MP4? ·??????Oracle?????????Linux?? ?PDF? ?WMV? ?MP4? ·Solaris 10 ?? ~????Solaris???~ ?PDF? ?WMV? ?MP4? ·Oracle????????WebLogic ?? ?PDF? ?WMV? ?MP4?

  Read the article

• Oracle?1????!?????????????????

  - by hideki ito

  ????Oracle????????????????????????????????????????! 1. ??????????????:?????????????????????????????! ·???!Oracle Database????!? ?PDF? ?WMV? ?MP4? 2. Oracle Database??????:Oracle Database ????????????????????! ·???????!? Oracle?? ~???~ ?PDF? ?WMV? ?MP4? ???????!? Oracle?? ~????????~ ?PDF? ?WMV? ?MP4? 3. Oracle Database ??????:????????????????????????????! ??????????????!??????????-??? ?PDF? ?WMV? ?MP4? 4. Oracle Database ?????:???????????????????????! ???????!???????·?????? ?PDF? ?WMV? ?MP4? ???????!????????·???????? ?PDF? ?WMV? ?MP4? 5. ORACLE MASTER???????:?????????????????????! ORACLE MASTER Bronze?Bronze DBA11g? ?PDF? ?WMV? ?MP4? ORACLE MASTER Bronze?11g SQL???? ?PDF? ?WMV? ?MP4? ??? ·????????????????????????/????????? ???????!?????·???????ABC ?PDF? ?WMV? ?MP4? ·??/OS/Application Server?????????? Java???! ?PDF? ?WMV? ?MP4? ??????Oracle?????????Linux?? ?PDF? ?WMV? ?MP4? Solaris 10 ?? ~????Solaris???~ ?PDF? ?WMV? ?MP4? Oracle????????WebLogic ?? ?PDF? ?WMV? ?MP4?

  Read the article

• ????????????????

  - by Yusuke.Yamamoto

  ????·???? ?????:??????·?????? ~???????????Platinum???????????~ Pickup!:????????????????????? ???????|??????????|???????? ????????:?Oracle DB?????????????????????Windows?VMware?? ???? Oracle Technology Network, ????/????, ??IT???????·?????????????? View RSS feed ????? ????? Oracle?????????????????????????!???????????? View RSS feed ????? ???? ????????? Oracle Database ?????? ??????? ?????????(????????, ???, etc) ????????(???, REDO, ????????, etc) ????·????????????????? ????·?????????(??, etc) ????????????? ???????????????????·?????? ??????? ???? ????????·??SQL Server Windows Server ??????????PL/SQL|Java|.NET|PHP ??/??? ORACLE MASTER ???? DWH(?????????)??·?? ????? ?????(SAN, NAS, SSD, etc) ??·??????? Oracle Database Oracle Database 11g Release 2(11gR2) Oracle Database Standard Edition ????????: Advanced Compression ?????????: Advanced Security Application Express(APEX) Automatic Storage Management(ASM) SSD???Oracle???: Database Smart Flash Cache ??????????: Data Guard Data Pump Oracle Data Provider for .NET(ODP.NET) Partitioning(???????/?????????) DB????: Real Application Clusters(RAC) Real Application Testing Recovery Manager(RMAN) SQL*Loader|SQL*Plus|Statspack ??????|????????|???????? Amazon EC2|Microsoft Excel MSFC/MSCS(Microsoft Cluster Service) Exadata|Database Firewall SQL Developer ?????DB: TimesTen In-Memory Database Oracle Fusion Middleware Java Oracle Coherence Oracle Data Integrator(ODI) Oracle GoldenGate Oracle JRockit JVM Oracle WebLogic Server Oracle Enterprise Manager ????????????: Oracle Application Testing Suite Oracle Solaris DTrace|ZFS|???/???? Oracle VM Server for x86 ?????? ???????? ?????????Oracle???????????????·????????????????? ?????????(??·??????) Oracle Direct Seminar(?????????) OTN??????(??????) ???????(????????) Oracle University(??) ??????! View RSS feed ????? ?????? ????? ?????? ?????|?Sun?? ???????? OTN???????? OTN(????) ?????? ???? OTN???|???? OTN????? ?????? ?????? ???????? ???? ???????

  Read the article

• ??! ??! Oracle/DB??????~2011?1??????????(???)

  - by Yusuke.Yamamoto

  2011?1???????????(???)?????????????????? ????????RAC/ASM?????????????????? ??????????????????????????? Oracle GoldenGate ???/????????????? ???????????????! ??! Oracle????????????????????????????????????????? ???! ??! Oracle????????????????????? ???! ??! Oracle????????? ????????????Oracle Database 11gR2 ??????????????? Oracle Database 11gR2(11.2.0.2) ???????????????? ????????????????????????? Oracle Database 11gR2(11.2.0.2)????????????:???PSR???????? ?? ???? ???? ??? ??????(RAC) ?????????Oracle Database 11gR2 RAC ?????????·??? ASM ? Microsoft Windows x86-64 ??? ?????? ??????????????!? Oracle Database 11g Release2 - Windows? ??????????? ??? ?????? ??????Oracle Database 11gR2 Oracle Grid Infrastructure ?????? ??? ???? ???????????????!? ?????????? ??? ??????? ??????Oracle Database 11gR2 ???????????????? ??? ??????? ???????/??????????!? Export/Import??? ??? ??????? ???????/?????!! ???????·?????? ~Statspack??~ ??? ????? ????????Oracle GoldenGate:?????!! DB??/Upgrade????????? New! ??? ??????? ???????/??????????!? ???????·???????? ??? ??????? ???????????! ??! Oracle????????? ?????? New!

  Read the article

• ???????Java EE??????WebLogic Server 12c??????3???????Oracle WebLogic Server 12c Forum?????|WebLogic Channel|??????

  - by ???02

  ???????2012?2?7??Java EE??????????·???????Oracle WebLogic Server 12c?????????????????????1?25????????????Oracle WebLogic Server 12c Forum - ????????Java??????????? -????Java EE 6?Java SE 7???????Java???????WebLogic Server 12c?????????????????·?????????????????????3??????????????????????(???)?Java EE 6?Java SE 7??????200????????????WebLogic Server 12c　???????????Oracle Corporation?WebLogic Server???????Fusion Middleware?????????·??????????????·???????????·????????????????????·???????????/????????Oracle Fusion Middleware??????WebLogic Server??????????????????????　?Fusion Middleware?????WebLogic Server?Coherence?Tuxedo??????????·??????????????????????????????????????????????Traffic Director?Virtual Assembly Builder???????Cloud Application Foundation??????????Cloud Application Foundation??Fusion Middleware?Fusion Application??????·???????????·????????????????????(?????)　?????????????1???????????WebLogic Server 12c??Java EE 6?Java SE 7???????Java?????????????????????????????????????200??????????????????　???????????????????????Java EE 6??????????????????????????????????????????????????????????????????????????5??????　????????·??????????????????Java EE 6?Java SE 7?????????????????????????????????????Oracle Real Application Clusters(RAC)?????????????????????????????????????????????????????????????　????????????????SPECjEnterprise2010????????????????????????????????????????????·????(Engineered Systems)?????????Oracle Exalogic Elastic Cloud????????????????????????　???????????????????????????????Oracle Enterprise Manager Cloud Control 12c???????????????????????·??????????????????????????????????????????????????????????　????WebLogic Server????????GlassFish?????????????????JBoss?WebSphere?????????/???????????·?????WebLogic Server 12c????????????????????????????·????????????　???????IDC?????????????WebLogic Server????????????????????????????????????????????????????????·???????????????????WebLogic Server 12c??????????????????·??????????????????????WebLogic Server 12c???????????????????????????(?????)¦????????????! ??????????????????WebLogic Server 12c??????WebLogic Server 12c??????3?????　???????????????????????Fusion Middleware???????????????????????????????WebLogic Server 12c??????3???????????????????????WebLogic Server 12c???????????????WebLogic Server 12c???????1――???Java?????????????　????WebLogic Server 12c???????????Java EE 6?Java SE 7????????????????????????????????Java EE??????????????????????????????????????Java EE????????????????????????????Java EE?????????????1??????????????????????????????????????????????????(???????·?????????????????)?????????????????????????????????????????　?Java EE 6????Java EE?????????1???????????Java?????????????????????????????????????????????????????????·??????(OSS)???????????????????????????????????????Java EE 6?Java SE 7??????Java???????????????????????????????????????????????????(???) ???????????????????????Fusion Middleware???????????????????????????????WebLogic Server 12c??????3???????????????????????WebLogic Server 12c???????????????WebLogic Server 12c???????1?????Java????????????? ????WebLogic Server 12c???????????Java EE 6?Java SE 7????????????????????????????????Java EE??????????????????????????????????????Java EE????????????????????????????Java EE?????????????1??????????????????????????????????????????????????(???????·?????????????????)????????????????????????????????????????? ?Java EE 6????Java EE?????????1???????????Java?????????????????????????????????????????????????????????·??????(OSS)???????????????????????????????????????Java EE 6?Java SE 7??????Java???????????????????????????????????????????????????(???)--WebLogic Server 12c???????2:??????????????????(??????????????????)　???WebLogic Server 12c?????2????????????????????????????????????1????????????????OSS??????????????????????????OSS????????????????????????????????????????????????????????????????????????????????????????????OSS?????????????????????????????????????????????????????????????? "???"????????????????　???WebLogic Server 12c?????Java EE 6???JavaServer Faces 2.1?Java Servlet 3.0?EJB 3.1?Java Persistence API 2.0????????????Java EE??????????????????????????????????????????????OSS?????????????????????????????????????????????????????????????????????????Java EE??????????????????????????????·???·?????????????/??????????????????????????????????????????????????????????????????¦?????WebLogic & Java EE???????????　?????????????Java EE?????????????WebLogic Server 12c???????3:?????·???????????????　3?????????????·?????????????????????????????????Oracle RAC????????????Active GridLink for RAC???????WebLogic Server????????1?????????　Active GridLink for RAC ??WebLogic Server???????????WebLogic Suite???????1????WebLogic Server 12c???Web?????·???????????????????????????????HTTP?????????????Oracle RAC?1?????????????????????????·?????????????????????????????????????Oracle RAC??????????????????????Web?????·????????????????????3??1??????????????　???Active GridLink for RAC??????????????????????????????????????????????TCP/IP??????????????????????????·??????????????????????????????????????????????????Oracle RAC????????????????????????????????????????????????????????????·????????????????????????????????????????????????¦????WebLogic?RAC????????????――Active GridLink for RAC????RAC???????????????????????????????????????4????　????????·??????(GC)?????????????????????????????JRockit Real Time?????????????????????????????????????????????????JRockit Flight Recorder????2??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????·??????·????????????????????WebLogic Server?????????????12c??????????????　?Oracle Database????????GC????????????????????????????????????????????·????????????????????WebLogic Server????????????????12c?????????????????????????????????????????????????????????????????????????·?????????????????????????????????????????????????WebLogic Server 12c???????????(???)¦??????????????????????????WebLogic Server????????·??????????――?????·??????·???????????WebLogic??????????????????????????TCO?――????????????????WebLogic???????　???????????????????Cloud Application Foundation???????????WebLogic Server 12c???????????????????????????????????????????????????????????????????????????????????????·??????·????????????????????????????????????????????????????????WebLogic Server 12c??????????????????????????¦WebLogic Server 12c??????·???Oracle Fusion Middleware 11g ??????·??????Oracle OpenWorld Tokyo 2012??????ENGINEERED FOR INNOVATION ??????????????????????????????????????????????????????????????????????????????????WebLogic Server???????????????????????![???????????:4324]??:2012?4?4?(?)~6?(?)??:???? ????? ??????????????49????????????:????Oracle OpenWorld Tokyo 2012???? ~??????~(PDF)Oracle OpenWorld Tokyo 2012????????2?(?????)???

  Read the article

• Java SE 7 Update 4??????·???????G1 GC??????“WebLogic+WebSocket”??????????????????????WebLogic Server 12c Forum 2012?????

  - by ???02

  2012?4?????????Java SE 7 Update 4????????·??????(GC)????G1 GC??????????GC???????????? ???????Web??????????????????HTML5??????/???????????????????WebSocket??????????????????WebLogic Server?????????????????????????????? 2012?8????????WebLogic Server 12c Forum 2012???????????·?????????????????????????(???) Java SE 7 Update 4??????G1 GC???????? 2012?8????????WebLogic Server 12c Forum 2012??????????????????·???????????????????????Java EE 6??????????????????????????????????????WebLogic Server????????????????????·???????????????????Java SE 7 Update 4???????GC??HTML5??????1????WebSocket??????????·????????????????????? ?????? Fusion Middleware?????? ?????????????? ???? 2012?4???????Java SE 7 Update 4?????Mac OS X????????????????????????G1 GC?????????? Fusion Middleware?????? ???????????????????????G1 GC???????????????? ????????GC???????????????????????????????????????????????????????????????????????????????????????????·??????????????????????????·??????????GC????????????????1??GC???????????????????????????????? GC????????????????????????????GC??????????????????????GC????GC???????????????????????????????GC??????????????????????????????????????????????????????????????? ???64????????????????????JVM?????64????????????64????JVM????GB???????·????????????????????????GC????????????????GC????????????????????????????·????????????????GC?????????????????????????????????????????????????????????????????SLA????????????????????·?????????????? ????????????????????????Java SE 7 Update 4????????GC?G1 GC?? G1 GC????????????????????????????????????????????????????????????GC???????????????????????????(????????)??????????????????????????????????????????????????????????????????????????????????????????? ??????G1 GC??????????????????????????????????????????? ??G1 GC?????????????????????????????????????????????????????????????????????????????????????????GC?????????????????????64????JVM????????·???????????????????????????????????????GC??????? ???????????????????????? ????????????????????????????????????????????OutOfMemory???????????????????????????????? WebLogic Server 12c?Java SE 7??????????????G1 GC???????????WebLogic Server 11g(10.3.6)??????????????????????GC????????JVM??????????-XX:+UseG1 GC????????????????? HTML5?Web????/?????????WebSocket?????????????????? ?????? Fusion Middleware?????? ?????????? ?????? ?????? Fusion Middleware???????WebLogic Server??????·???????????????????????·?????????Near future of WebLogic / ????WebLogic???????????????Web??????????HTML5???? ????????IT????????????????????1???????·?????????????????????????????????????????????????????????????HTML5?? HTML5???????HTML????????????HTML???Web????????????????????????HTML5???????????????????????????????????????????????HTML5????????/???????????????????????????????????WebWorker?????????????????????????????Web Storage???????API??????HTML5??????????????HTML??????????? ???HTML5??????????????????????WebSocket????????Web????/?????????????????????????? WebSocket????????????????????????(???????)?HTTP????????????????WebSocket????????WebSocket????????????????????????HTTP????????????????????????Web????/??????????????????? WebSocket??????????“??????Web”???????????????????????????????????????????????????????????????1???????????????????????HTTP???????????????????????????????????Comet????HTTP???????????????????????????????WebSocket???????????????????????????????????????????????????????????????? ?????????WebSocket????????????????????????????????????????????????????? WebSocket???????????????????????????? ?????? WebSocket???????(RFC 6455) ?????(Proposed Standard)??? WebSocket API(JavaScript)??(W3C) ????(Last Call Working Draft)??????2012?6?14???? WebSocket API Java EE??(JSR-356) Review Ballot??? ???? Web???? Google Chrome 16?Mozilla Firefox 11?Internet Explorer 10(PP5)?Safari 6??? ???·????? Jetty?jWebSocket?node.js?GlassFish 3.x????? ????????????????(RFC 6455)?????????JavaScript??????????????????????Java EE????????JSR-356?????????????????????????·????????????????????????????·??????????????? ??????????Java???????????????GlassFish????????????????????(JSR-356)??????????????·???·???????????????? ?WebSocket?WebLogic Server ??????????????WebSocket??WebLogic Server???????????????????? WebSocket????HTML5?????????????????????????????????HTML5?????????????????????Java EE?????????HTML5????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???????HTML5?????????????????????????????????? ????????????? ?????????????????????????????????????????????????????????????????????????????????????????????????????HTML5???????????Java EE??????????????????????????(???) ???????????????????????????????????????????????????????????????????????????????????Java EE?WebLogic?????????????????????????????????????????????????????

  Read the article

• fsck on LVM snapshots

  - by Alpha01

  I'm trying to do some file system checks using LVM snapshots of our Logical Volumes to see if any of them have dirty file systems. The problem that I have is that our LVM only has one Volume Group with no available space. I was able to do fsck's on some of the logical volumes using a loopback file system. However my question is, is it possible to create a 200GB loopback file system, and saved it on the same partition/logical volume that I'll be taking a snapshot of? Is LVM smart enough to not take a snapshot copy of the actual snapshot? [root@server z]# vgdisplay --- Volume group --- VG Name Web2-Vol System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 29 VG Access read/write VG Status resizable MAX LV 0 Cur LV 6 Open LV 6 Max PV 0 Cur PV 1 Act PV 1 VG Size 544.73 GB PE Size 4.00 MB Total PE 139450 Alloc PE / Size 139450 / 544.73 GB Free PE / Size 0 / 0 VG UUID BrVwNz-h1IO-ZETA-MeIf-1yq7-fHpn-fwMTcV [root@server z]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 9.7G 3.6G 5.6G 40% / /dev/sda1 251M 29M 210M 12% /boot /dev/mapper/Web2--Vol-var 12G 1.1G 11G 10% /var /dev/mapper/Web2--Vol-var--spool 12G 184M 12G 2% /var/spool /dev/mapper/Web2--Vol-var--lib--mysql 30G 15G 14G 52% /var/lib/mysql /dev/mapper/Web2--Vol-usr 13G 3.3G 8.9G 27% /usr /dev/mapper/Web2--Vol-z 468G 197G 267G 43% /z /dev/mapper/Web2--Vol-tmp 3.0G 76M 2.8G 3% /tmp tmpfs 7.9G 92K 7.9G 1% /dev/shm The logical volume in question is /dev/mapper/Web2--Vol-z. I'm afraid if I created the loopback file system in /dev/mapper/Web2--Vol-z and take a snapshot of it, the disk size will be trippled in size, thus running out of disk space available.

  Read the article

• Looking for cheap Wireless router, with USB for attached USB disk drive

  - by geoffc

  I have a 802.11b router at home (DLink DI-614+ (B rev)) and it is working perfectly well for me. I want to replace it though, since it is out of updates, and now several years old and heck, I want a new toy to configure! I was trying to decide what to get. I could care less about 802.11g or n support, since B is fast enough, but every device in my house is now B/G, so G would be fine for me. N buys me little to nothing. (Small enough house that range is a non-issue). The features I realized I want are a USB port for sharing a USB hard drive. I would like to have a central device I could store files on. I do not want to waste the power of an always running PC to do this, so a router seems like the place to go. I would love it, if it could support Vonage VOIP as well, then I could ditch a power brick from a second device (I have the small DLink Vonage VOIP box). All the current examples of this router (with USB drive, yet to find one with VOIP too!) are in the $100+ range, and N and silly, when a B/G is in the $30 range around here.

  Read the article

• Making OpenSSL work on PHP Windows 2008 server with FastCGI

  - by KacieHouser

  I have been researching all day. Here is what I have done: In C:/PHP/php.ini and C:/PHP/php-cgi-fcgi.ini I have made the extension_dir = "C:/PHP/ext" I uncommented extension=php_openssl.dll I went to http://windows.php.net/download/ and got the thread safe version with the PHP 5.4 (5.4.8) version of DLL's In C:/PHP/ext I replaced the php_openssl.dll with the one I downloaded In System32 and SysWOW64 I added the following DLL's ssleay.dll libeay.dll I restarted the IIS server in the Server Manager under Web Server and stopped and started the World Wide Web Publishing Service That didn't work, so I tried same thing with the unthreaded versions. I still get: Fatal error: Call to undefined function ftp_ssl_connect() in C:\inetpub\wwwroot\REMOVED_dev\save_data.php on line 5 Here are related things from phpinfo(): System Windows NT DEV-WEB1 6.1 build 7601 (Windows Server 2008 R2 Standard Edition Service Pack 1) i586 Compiler MSVC9 (Visual C++ 2008) Architecture x86 Configure Command cscript /nologo configure.js "--enable-snapshot-build" "--enable-debug-pack" "--disable-zts" "--disable-isapi" "--disable-nsapi" "--without-mssql" "--without-pdo-mssql" "--without-pi3web" "--with-pdo-oci=C:\php-sdk\oracle\instantclient10\sdk,shared" "--with-oci8=C:\php-sdk\oracle\instantclient10\sdk,shared" "--with-oci8-11g=C:\php-sdk\oracle\instantclient11\sdk,shared" "--with-enchant=shared" "--enable-object-out-dir=../obj/" "--enable-com-dotnet" "--with-mcrypt=static" "--disable-static-analyze" "--with-pgo" Server API CGI/FastCGI Configuration File (php.ini) Path C:\Windows Loaded Configuration File C:\PHP\php-cgi-fcgi.ini Scan this dir for additional .ini files (none) Additional .ini files parsed (none) Registered PHP Streams php, file, glob, data, http, ftp, zip, compress.zlib, compress.bzip2, https, ftps, sqlsrv, phar Registered Stream Socket Transports tcp, udp, ssl, sslv3, sslv2, tls FTP support enabled Protocols dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, pop3, pop3s, rtsp, scp, sftp, smtp, smtps, telnet, tftp openssl OpenSSL support enabled OpenSSL Library Version OpenSSL 0.9.8t 18 Jan 2012 OpenSSL Header Version OpenSSL 0.9.8x 10 May 2012 What am I missing here?

  Read the article

• Why would Windows use slower network interface despite route metrics?

  - by tim11g

  On my previous notebook, the Dell/Broadcom wireless adapter had an option to automatically disable wireless when a wired network is connected, so I never dealt with multiple active interfaces. My current system has an Intel wireless adapter, and they apparently haven't figured out how to turn it off when there is a wired connection. Unless I explicitly remember to disable wireless when docked, the connection is active. That shouldn't be a problem (in theory), since the route metric will cause traffic to go over the fastest network (as indicated by the lowest metric in the routing table). Apparently not - I'm running a backup and seeing the throughput at 25Mbps or so (which is consistent with 802.11g) when a perfectly good Gigabit Ethernet interface is also connected. IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.104 10 0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.109 25 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 Windows has correctly identified the Ethernet interface (.104) and assigned it the lower (preferred) metric. So the Ethernet interface should be used exclusively, right? Why is the Ethernet connection not being used? What other factors are involved? (This is with Windows 7 if it makes a difference)

  Read the article

• How to group strings by prefix

  - by namenlos

  I am writing a Winform UI in which the user must select a single customer. (For reasons beyond my control I am limited to a UI that uses dropdown lists, text fields, checkboxes, radiobuttons only -i.e. no fancy special UI controls) The situation There are a lot of customers (a thousand for example) If i put all the customers in a single dropdown there's no way it will be easy for a customer to even see all the customers. Also the it will take too long to retireve all the customers from the DB to populate the dropdown My thought is to have two combo box, the first lists groups of the customers by their last name something like a phone book "Aa-Ac", "Ad-Ade", "Adf-B", when selecting the first combo box, it scope the second one to a managable set customer names (no more than for example 40 names) The question I need a reasonable way of grouping their names such that it will be clear to customer which group contains the name. I.e. given a group of names I need to bucketize then int "Aa-Ac". Comments I don't need to solve the general problem of an immense number of names - we know based on our data that 1000 names is the max our users will encounter. If there are other techniques please do share, but I am interested specifically in an answer to my specific question around how to determine the buckets ("Aa-Ac", etc.)

  Read the article

• classpath and class loading on weblogic

  - by qjeta

  Hello, I am trying to create and load dynamically classes in weblogic (10.3.2.0). It is ADF application which I deploy to the weblogic server. When I print ((GenericClassLoader)this.getClass().getClassLoader()).getFinderClassPath() I see the path to my directory (of course not just this path) C:\...\system11.1.1.2.36.55.36\DefaultDomain\servers\DefaultServer\tmp\_WL_user\test\753the\dynamicClasses (I have added directory dynamicClasses to manifest for deployment WAR profile). In this directory I create class files. I have checked it, files are really created there. When I try to load created class with the same classloader, for which I have printed classpath, ClassNotFoundException is thrown. It knows the path to the directory with classes and to jar file, but it doesn't load classes. With URLClassLoader I can load classes. But I need so that my classes would be seen by the classes loaded "usual" way. I am able to run it correctly just with system CLASSPATH. Please, do you know an explanation? Is the manifest file in WAR the wrong place for specifiing classpath? Thank you in advance Qjeta

  Read the article

• Best practices for settings for Oracle database creation

  - by Gary

  When installing an Oracle Database, what non-default settings would you normally apply (or consider applying) ? I'm not after hardware dependent setting (eg memory allocation) or file locations, but more general items. Similarly anything that is a particular requirement for a specific application rather than generally applicable isn't really useful. Do you separate out code/API schemas (PL/SQL owners) from data schemes (table owners) ? Do you use default or non-default roles, and if the latter, do you password protect the role ? I'm also interested in whether there's any places where you do a REVOKE of a GRANT that is installed by default. That may be version dependent as 11g seems more locked down for its default install. These are ones I used in a recent setup. I'd like to know whether I missed anything or where you disagree (and why). Database Parameters Auditing (AUDIT_TRAIL to DB and AUDIT_SYS_OPERATIONS to YES) DB_BLOCK_CHECKSUM and DB_BLOCK_CHECKING (both to FULL) GLOBAL_NAMES to true OPEN_LINKS to 0 (did not expect them to be used in this environment) Character set - AL32UTF8 Profiles I created an amended password verify function that used the apex dictionary table (FLOWS_030000.wwv_flow_dictionary$) as an extra check to prevent simple passwords. Developer logins CREATE PROFILE profile_dev LIMIT FAILED_LOGIN_ATTEMPTS 8 PASSWORD_LIFE_TIME 32 PASSWORD_REUSE_TIME 366 PASSWORD_REUSE_MAX 12 PASSWORD_LOCK_TIME 6 PASSWORD_GRACE_TIME 8 PASSWORD_VERIFY_FUNCTION verify_function_11g SESSIONS_PER_USER unlimited CPU_PER_SESSION unlimited CPU_PER_CALL unlimited PRIVATE_SGA unlimited CONNECT_TIME 1080 IDLE_TIME 180 LOGICAL_READS_PER_SESSION unlimited LOGICAL_READS_PER_CALL unlimited; Application login CREATE PROFILE profile_app LIMIT FAILED_LOGIN_ATTEMPTS 3 PASSWORD_LIFE_TIME 999 PASSWORD_REUSE_TIME 999 PASSWORD_REUSE_MAX 1 PASSWORD_LOCK_TIME 999 PASSWORD_GRACE_TIME 999 PASSWORD_VERIFY_FUNCTION verify_function_11g SESSIONS_PER_USER unlimited CPU_PER_SESSION unlimited CPU_PER_CALL unlimited PRIVATE_SGA unlimited CONNECT_TIME unlimited IDLE_TIME unlimited LOGICAL_READS_PER_SESSION unlimited LOGICAL_READS_PER_CALL unlimited; Privileges for a standard schema owner account CREATE CLUSTER CREATE TYPE CREATE TABLE CREATE VIEW CREATE PROCEDURE CREATE JOB CREATE MATERIALIZED VIEW CREATE SEQUENCE CREATE SYNONYM CREATE TRIGGER

  Read the article

• Minimal-change algorithm which maximises 'swapping'

  - by Kim Bastin

  This is a question on combinatorics from a non-mathematician, so please try to bear with me! Given an array of n distinct characters, I want to generate subsets of k characters in a minimal-change order, i.e. an order in which generation n+1 contains exactly one character that was not in generation n. That's not too hard in itself. However, I also want to maximise the number of cases in which the character that is swapped out in generation n+1 is the same character that was swapped in in generation n. To illustrate, for n=7, k=3: abc abd abe* abf* abg* afg aeg* adg* acg* acd ace* acf* aef adf* ade bde bdf bef bcf* bce bcd* bcg* bdg beg* bfg* cfg ceg* cdg* cde cdf* cef def deg dfg efg The asterisked strings indicate the case I want to maximise; e.g. the e that is new in generation 3, abe, replaces a d that was new in generation 2, abd. It doesn't seem possible to have this happen in every generation, but I want it to happen as often as possible. Typical array sizes that I use are 20-30 and subset sizes around 5-8. I'm using an odd language, Icon (or actually its derivative Unicon), so I don't expect anyone to post code that I can used directly. But I will be grateful for answers or hints in pseudo-code, and will do my best to translate C etc. Also, I have noticed that problems of this kind are often discussed in terms of arrays of integers, and I can certainly apply solutions posted in such terms to my own problem. Thanks Kim Bastin

  Read the article

• What speed are Wi-Fi management and control frames sent at?

  - by Bryce Thomas

  There are a bunch of different 802.11 Wi-Fi standards, e.g. 802.11a, 802.11b, 802.11g, 802.11n etc. that all support different speeds. Wi-Fi frames are generally categorised as one of the following: Data frames - carry the actual application data Control frames - coordinate when its safe to send/reduce collisions Management frames - handle connection discovery/setup/tear down (e.g. AP discovery, association, disassociation) My question is about whether all these frames, and specifically management frames, are transmitted at the fastest supported speed available, or whether certain classes of frames are transmitted at some lowest common denominator speed. I have noticed that when I put an 802.11b/g only device into monitor mode and capture traffic over the air, I still see management frames (e.g. association/disassociation) being transmitted between my phone and AP which are both 802.11n, even though 802.11n has a higher transfer rate. So I am imagining one of two possibilities: My 802.11n phone/AP had to negotiate a slower speed for some reason and that's why I can see their frames on my 802.11b/g monitoring device. Management frames (and perhaps control frames also?) are sent at a lower speed, and it's only data frames that are transmitted faster with newer 802.11 standards. The reason I would like to know which one of these two possibilities (or perhaps a third possibility) is the case is that I want to capture management frames, and need to know whether using an 802.11b/g card is going to lead to me missing some frames sent at higher speeds than the monitoring card can observe. If management frames are indeed sent at a slower rate, then it's all good. If I just happen to be seeing the management frames because my phone/AP have negotiated a slower rate though, then I need to reconsider what card I use for packet capture.

  Read the article

• Reverse proxy apache to weblogic problem

  - by Zlatoroh

  Hello I have apache 2.2 server and welogic 11g running on web server. Apache is set for revers proxy on port 8080, weblogic serves two web pages and it's on port :7001 first page: localhost:7001/e-SPP/app second page: localhost:7001/e-sprejem/app I would like to access this two pages with apache like so: localhost:8080/e-SPP/app localhost:8080/e-sprejem/app Listen 8080 ServerName localhost:8080 <Proxy *> Order deny,allow Allow from all </Proxy> ProxyRequests Off ProxyPreserveHost On RewriteEngine On <Location /e-SPP/app> ProxyPass localhost:7001/e-SPP/app ProxyPassReverse localhost:7001/e-SPP/app </Location> <Location /e-sprejem/app> ProxyPass localhost:7001/e-sprejem/app ProxyPassReverse localhost:7001/e-sprejem/app </Location> This configuration opens my pages bust it's black anw white because CSS and JS aren't loaded! Path to the css over proxy looks like this : localhost:8080/e-SPP/css/style.css which doesn't open the CSS if I change the port to 7001 the it works !!! localhost:7001/e-SPP/css/style.css What should I do that CSS and JS are loaded? Interesting is favicon which is being loaded http://localhost:8080/e-SPP/images/new/favicon.gif Thanks for your help!

  Read the article

• Is there a problem with this MySQL Query?

  - by ThinkingInBits

  http://pastie.org/954073 The echos at the top all display valid data that fit the database schema. There are no connection errors Any ideas? Thanks in advance! Here is the echo'ed query INSERT INTO equipment (cat_id, name, year, manufacturer, model, price, location, condition, stock_num, information, description, created, modified) VALUES (1, 'r', 1, 'sdf', 'sdf', '2', 'd', 'd', '3', 'asdfasdfdf', 'df', '10 May 10', '10 May 10') MySQL is giving: #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'condition, stock_num, information, description, created, modified) VALUES (1, 'r' at line 1 id int(11) unsigned NO PRI NULL auto_increment Edit Delete cat_id int(11) unsigned NO NULL Edit Delete prod_name varchar(255) YES NULL Edit Delete prod_year varchar(10) YES NULL Edit Delete manufacturer varchar(255) YES NULL Edit Delete model varchar(255) YES NULL Edit Delete price varchar(10) YES NULL Edit Delete location varchar(255) YES NULL Edit Delete condition varchar(25) YES NULL Edit Delete stock_num varchar(128) YES NULL Edit Delete information text YES NULL Edit Delete description text YES NULL Edit Delete created varchar(20) YES NULL Edit Delete modified varchar(20) YES NULL Query: INSERT INTO equipment (cat_id, prod_name, prod_year, manufacturer, model, price, location, condition, stock_num, information, description, created, modified) VALUES (1, 'asdf', '234', 'adf', 'asdf', '34', 'asdf', 'asdf', '234', 'asdf', 'asdf', '10 May 10', '10 May 10')

  Read the article

• SQL 2008 SP1 crashing almost daily

  - by matijake

  Hey, almost every day our new DB crashes. It is virtual server residing on same hardware as 5 other servers, two of them beeing identical MS SQL2008sp1 and two Oracle 11g's so I can pretty much rule out hardware issues. Server has dedicated local LUN, 4vCPU and 8GB memory with 2GB windows swap file. It runs 4 instances. Primary instance is limited to 5GB memory and paralelism set to 4 running on MS SQL 2008 SP1 @ Windows Server 2008 Enterprise R2 x64. Only that primary instance is crashing. After it crashes nothing can connect to it, it's even impossible to shut it down through service manager. What I found in logs is: ***Stack Dump being sent to C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\LOG\SQLDump0081.txt SqlDumpExceptionHandler: Process 4788 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server i s terminating this process.     Whole log can be seen at: http://kabl.org/files/SQLDump0081.txt second crash log made second later at: http://kabl.org/files/SQLDump0082.txt I have analyzed mini crashdump with Microsoft tools, but no promising results. If it can help, here it is: http://kabl.org/files/SQLDump0081.mdmp Any ideas are greatly welcome, since it is becoming quite a pain in the ass to restart server almost every day :) Regrads, -Matija

  Read the article

• Wireless disconnects at random after upgrade to Ubuntu 10.4

  - by Daniel Elessedil Kjeserud

  After upgrading my home server from Ubuntu 8.10 to 10.4 my wireless seemingly drops out, even though my IRC client keeps it's connection to the servers, so it looks like the machine just stops taking wireless requests. A ping will give a me this Request timeout for icmp_seq 27 ping: sendto: Host is down After a while the machine just starts responding again, without any interaction from me. When the machine comes back, this is what dmesg gives me [ 18.296288] wlan0: direct probe to AP 00:1b:63:22:a4:5f (try 1) [ 18.296350] wlan0: deauthenticating from 00:1b:63:22:a4:5f by local choice (reason=3) [ 18.296440] wlan0: direct probe to AP 00:1b:63:22:a4:5f (try 1) [ 18.298697] wlan0: direct probe responded [ 18.298706] wlan0: authenticate with AP 00:1b:63:22:a4:5f (try 1) [ 18.306836] wlan0: authenticated [ 18.306886] wlan0: associate with AP 00:1b:63:22:a4:5f (try 1) [ 18.309396] wlan0: RX AssocResp from 00:1b:63:22:a4:5f (capab=0x411 status=0 aid=2) [ 18.309402] wlan0: associated [ 18.310187] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 18.447742] apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac) [ 18.447748] apm: overridden by ACPI. [ 19.163282] padlock: VIA PadLock not detected. [ 28.352022] wlan0: no IPv6 routers present kjes@brin:~$ lspci 02:07.0 Network controller: RaLink RT2561/RT61 rev B 802.11g It's on a wireless network with WPA2, the machine worked without any problems on the same wireless network since Ubuntu 8.10 was the most resent version, and there have been no changes to my network recently. Even though the server drops out, everything else on the network keeps working like normal.

  Read the article

• Change authentication wifi WPA to WEP on Windows 8

  - by Kites

  I use netsh wlan set hostednetwork mode=allow ssid=Kites key=phambaoViet netsh wlan start hostednetwork To share WiFi from LAN network on laptop (Windows 8) to my other device. When I show information netsh wlan show hostednetwork the supported authentication is WPA. My device support authentication WEP only. How can I change the authentication to WEP? Infomation: Interface name: Wi-Fi Driver : Qualcomm Atheros AR9002WB-1NG Wireless Network A dapter Vendor : Qualcomm Atheros Communications Inc. Provider : Microsoft Date : 03/07/2012 Version : 3.0.0.130 INF file : C:\Windows\INF\netathrx.inf Files : 2 total C:\Windows\system32\DRIVERS\athrx.sys C:\Windows\system32\drivers\vwifibus.sys Type : Native Wi-Fi Driver Radio types supported : 802.11b 802.11g 802.11n FIPS 140-2 mode supported : Yes 802.11w Management Frame Protection supported : Yes Hosted network supported : Yes Authentication and cipher supported in infrastructure mode: Open None Open WEP-40bit Open WEP-104bit Open WEP WPA-Enterprise TKIP WPA-Personal TKIP WPA2-Enterprise TKIP WPA2-Personal TKIP Vendor defined TKIP WPA2-Enterprise Vendor defined Vendor defined Vendor defined WPA-Enterprise CCMP WPA-Personal CCMP WPA2-Enterprise CCMP Vendor defined CCMP WPA2-Enterprise Vendor defined Vendor defined Vendor defined WPA2-Personal CCMP Vendor defined Vendor defined Authentication and cipher supported in ad-hoc mode: Open None Open WEP-40bit Open WEP-104bit Open WEP WPA2-Personal CCMP Vendor defined Vendor defined

  Read the article

• Debian: What are these files in /sys/devices/pci0000:00/ for?

  - by muhuk

  I am running Debian Squeeze on an MSI M670 laptop. I have these following files on my root drive, each 256MB: file:///sys/devices/pci0000:00/0000:00:05.0/resource1 file:///sys/devices/pci0000:00/0000:00:05.0/resource1_wc Here is my lspci output: muhuk@debian:~$ lspci 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:05.0 VGA compatible controller: nVidia Corporation C51 [GeForce Go 6100] (rev a2) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 04:04.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) 04:04.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01) 04:04.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01) 04:09.0 Network controller: RaLink RT2561/RT61 rev B 802.11g I am speculating these have something to do with the shared RAM my GPU is using. But why a file on disk? And why two of them?

  Read the article

• Linux commands shows different results

  - by ClydeFrog

  I'm really having a hard time to process these results on my Ubuntu server. I have a major problem with my JBoss server where I get FileNotFoundExceptions along with "No space left on device" errors. And I thought "maybe I'm out of disk space", and used df command to figure out how much I have left: root@ubuntu1:/# df -h Filsystem Storlek Anvnt Tillg Anv% Monterat på /dev/mapper/ubuntu1-root 36G 13G 21G 38% / none 2,0G 192K 2,0G 1% /dev none 2,0G 0 2,0G 0% /dev/shm none 2,0G 64K 2,0G 1% /var/run none 2,0G 0 2,0G 0% /var/lock /dev/sda1 228M 23M 193M 11% /boot /dev/mapper/vgdata-lvdata 79G 9,2G 66G 13% /data And as you can see, I have plenty of space left. And I also checked if I'm out of i-nodes: root@ubuntu1:/# df -i Filsystem Inoder IAnv IFria IAnv% Monterat på /dev/mapper/ubuntu1-root 2346512 61992 2284520 3% / none 505380 773 504607 1% /dev none 507383 1 507382 1% /dev/shm none 507383 30 507353 1% /var/run none 507383 2 507381 1% /var/lock /dev/sda1 124496 230 124266 1% /boot /dev/mapper/vgdata-lvdata 10486784 233945 10252839 3% /data But then i used du: root@ubuntu1:/# du -s -h /* 7,5M /bin 23M /boot 19G /data 192K /dev 11G /eniro 5,3M /etc 112K /home 0 /initrd.img 183M /lib 0 /lib64 16K /lost+found 12K /media 4,0K /mnt 4,0K /opt du: kan inte komma åt "/proc/20452/task/20452/fd/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/task/20452/fdinfo/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/fd/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/fdinfo/3": Filen eller katalogen finns inte 0 /proc 18M /root 8,2M /sbin 4,0K /selinux 8,0K /srv 0 /sys 40K /tmp 691M /usr 1,2G /var 0 /vmlinuz Notice that /data and /eniro are 30G combined! How is it possible? Do I have a memory leak somewhere? Or is it something else? ----- EDIT 1 ----- Ok, I figured out that /data has its own mount so it's not possible to combine /data and /eniro because they aren't on the same mount. But how come it says 9,2G on the first command when it says 19G on the third on directory /data?

  Read the article

• Site doesn't show up. Instead a bunch of weird characters?

  - by Richard Knop

  ‹?????혱jÃ0†w=Å=AÜ ÂЃ)ÅKGÅ:¢En%¹©ß¾²Ý 7xèpußøãŸ~ÝöÇ®Ömót¨•îŸû®©îao‚½‘Í:ºR†æk@´huõÃ(]­;z:¼•Íö¾þ{¥•‚¾ímwi£_±Ä1)–ÄÇ?‡‘,‰%Ž#YKF²Ä²Ä8ŒèKF²$–88ŒdI,qpÉ’Xâà0’%±Ä1Àaþe–TïÆOŒ@ 2^ßÇh"ù¦`Î!뜄yœ"Dü˜0e°Ó:ËË>e„ñʈfp.à(U®<œv¿ì;xñhRY3˜‹¡?ÞdŒ;Uºõ×R°WkÑ^Z÷¥¯Wß.Ò¤·?? That's exactly what shows up instead of my website in the web browser. Though on localhost the website works great. It's a Zend Framework based website, on localhost the output looks something like this (shortened version): <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Title</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Language" content="en-US" /> </head> <body> <!-- LOTS OF HTML HERE --> </body> </html> What could cause this problem? It used to work before, this bug has only appeared today (or maybe already yesterday, I'm not sure).

  Read the article

• What is the peak theoretical WiFi G user density? [closed]

  - by Bigbio2002

  I've seen a few WiFi capacity planning questions, and this one is related, but hopefully different enough not to be closed. Also, this is related specifically to 802.11g, but a similar question could be made for N. In order to squeeze more WiFi users into a space, the transmit power on the APs need to be reduced and the APs squeezed closer together. My question is, how far can you practically take this before the network becomes unusable? There will come a point where the transmit power is so weak that nobody will actually be able to pick up a connection, or be constantly roaming to/from APs spaced a few feet apart as they walk around. There are also only 3 available channels to use as well, which is a factor to consider. After determining the peak AP density, then multiply by users-per-AP, which should be easier to find out. After factoring all of this in and running some back-of-the-envelope calculations, I'd like to be able to get a figure of "XX users per 10ft^2" or something. This can be considered the physical limit of WiFi, and will keep people from asking about getting 3,000 people in a ballroom conference on WiFi. Can anyone with WiFi experience chime in, or better yet, provide some calculations for a more accurate figure? Assumptions: Let's assume an ideal environment with no reflection (think of a big, square, open room, with the APs spaced out on a plane), APs are placed on the ceiling so humans won't absorb the waves, and the only interference are from the APs themselves and the devices. As for what devices specifically, that's irrelevant for the first point of the question (AP density, so only channel and transmit power should matter). User experience: Wikipedia states that Wireless G has about 22Mbps maximum effective throughput, or about 2.75MB/s. For the purpose of this question, anything below 100KB/s per user can be deemed to be a poor user experience. As for roaming, I'll assume the user is standing in the same place, so hopefully that will be a non-issue.

  Read the article

< Previous Page | 76 77 78 79 80 81 82 83 84 85 86 87  | Next Page >