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• MySQL is killing the server IO.

  - by OneOfOne

  I manage a fairly large/busy vBulletin forums (~2-3k requests per second, running on gigenet cloud), the database is ~ 10 GB (~9 milion posts, ~60 queries per second), lately MySQL have been grinding the disk like there's no tomorrow according to iotop and slowing the site. The last idea I can think of is using replication, but I'm not sure how much that would help and worried about database sync. I'm out of ideas, any tips on how to improve the situation would be highly appreciated. Specs : Debian Lenny 64bit ~12Ghz (6 cores) CPU, 7520gb RAM, 160gb disk. Kernel : 2.6.32-4-amd64 mysqld Ver 5.1.54-0.dotdeb.0 for debian-linux-gnu on x86_64 ((Debian)) Other software: vBulletin 3.8.4 memcached 1.2.2 PHP 5.3.5-0.dotdeb.0 (fpm-fcgi) (built: Jan 7 2011 00:07:27) lighttpd/1.4.28 (ssl) - a light and fast webserver PHP and vBulletin are configured to use memcached. MySQL Settings : [mysqld] key_buffer = 128M max_allowed_packet = 16M thread_cache_size = 8 myisam-recover = BACKUP max_connections = 1024 query_cache_limit = 2M query_cache_size = 128M expire_logs_days = 10 max_binlog_size = 100M key_buffer_size = 128M join_buffer_size = 8M tmp_table_size = 16M max_heap_table_size = 16M table_cache = 96

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• Folder Redirection - Explorer requires manual refresh

  - by Pete

  Hello, I am having an issue where - when a users my documents folder is redirected to a DFS share, windows explorer requires a manual refresh after creating a new folder, file, etc. (Interestingly, not when making a new briefcase) I have tried a number of MS knowledge base articles, a hot-fix and a registry change, all with no success. (( http:// support.microsoft.com/?kbid=823291 ; http:// support.microsoft.com/kb/873392 )) The problem only occurs when going through the my documents icon. If I map a home drive for the user to the exact same location (IE - H:\DFS\user\documents) , open that drive and make new folders, then there is no problem. Mapping my documents to H:\ also resolves the issue, however, as we need folder sync and people logging on off site with cached profiles this is not a workable solution (as H: will not map and there will be no access to their docs.) Has anyone managed to figure a fix for this? Thanks, Pete.

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• What's the best way to read mailing lists in 2011?

  - by Avdi

  I used to use Emacs/GNUS for reading mailing lists, but that feels very 1990. Plus, it doesn't sync my scoring across PCs. GMail is wonderful, but it kind of sucks for mailing lists. The essential "mute" feature doesn't even work unless the mail is in the Inbox. I'd read my mailing lists on the Google Groups site, but not all of them are Google Groups. Basically, I'm looking for the "Google Reader" of mailing lists. Any suggestions?

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• Cleaning Up Unused Users and Groups (Ubuntu 10.10 Server)

  - by PhpMyCoder

  Hello experts, I'm very much a beginner when it comes to Ubuntu and I've been learning the ropes by diving in and writing a (backend-language independent) web app framework that relies on apache, some clever mod_rewrites, Ubuntu permissions, groups, and users. One thing that really annoys my inner clean-freak is that there are loads of users and groups that are created when Ubuntu is installed that are never used (Or so I think). Since I'm just running a simple web app server, I would like to know: What users/groups can I remove? Since you'll probably ask for it...here's a list of all the users on my box (excluding the ones I know that I need): root daemon bin sys sync man lp mail uucp proxy backup list irc gnats nobody libuuid syslog And a list of all of the groups: root daemon bin sys adm tty disk lp mail uucp man proxy kmem dialout fax voice cdrom floppy tape sudo audio dip backup operator list irc src gnats shadow utmp video sasl plugdev users nogroup libuuid crontab syslog fuse mlocate ssl-cert lpadmin sambashare admin

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• If I'm a web server, for which accounts can I turn off shells within passwd file?

  - by eric01

  I am making a web server running LAMP and want to access it using SSH. When I open the passwd file, I see all those accounts and I want to know for which ones I can put false. I have the following accounts: root, daemon, bin, sys, sync, games, man, lp, mail, news, uucp, proxy, www-data backup, list, irc, gnats, nobody, libuuid, syslog, messagebus, whoopsie, mandscape, sshd, eric Except root, sshd and eric, which ones should I not disable? How about www-data and sshd? Thanks a lot for your help.

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• Change Management Software

  - by Andrew

  I manage an 80,000 user CIS application written in Uniface. Every form in the application, and many of its processes, are represented by .frm files. We have hundreds of these files and 5 instances of the application. Instances include multiple production installations which must be kept sync'd. We do not get MD5 from our vendor for files that are released to us as patches. We have been using a spreadsheet to track changes, but this is far from ideal. Is there a commercial application that can be purchased that will allow us to track changes to the instances? Thank you all! EDIT: Patches are released as zip files with either FRM files in them or SQL files or a mix of both. SQL files will contain statements that need to be run in Oracle. Patches are also assigned unique patch numbers.

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• [tcp] :/: RPCPROG_NFS: RPC: Program not registered

  - by frankcheong

  I tried to share the root / from a fedora 9 to a freeBSD while when I tried to mount the / folder it complained with "[tcp] nfs_server:/: RPCPROG_NFS: RPC: Program not registered". I followed the below steps to setup on the fedora nfs server:- Add the below line inside the /etc/exports / nfs_client(rw,no_root_squash,sync) restart the nfs related service service portmapper restart service nfslock restart service nfs restart export the filesystem using the below command:- exportfs -arv On the nfs client, I have troubleshoot using the below command:- rpcinfo -p nfs_server program vers proto port service 100000 2 tcp 111 rpcbind 100000 2 udp 111 rpcbind 100024 1 udp 32816 status 100024 1 tcp 34173 status 100011 1 udp 817 rquotad 100011 2 udp 817 rquotad 100011 1 tcp 820 rquotad 100011 2 tcp 820 rquotad 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100021 1 udp 32818 nlockmgr 100021 3 udp 32818 nlockmgr 100021 4 udp 32818 nlockmgr 100005 1 udp 32819 mountd 100005 1 tcp 34174 mountd 100005 2 udp 32819 mountd 100005 2 tcp 34174 mountd 100005 3 udp 32819 mountd 100005 3 tcp 34174 mountd showmount -e nfs_client Exports list on nfs_server: / nfs_client What else did I missed?

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• Clone remote CentOS server to local test server?

  - by dannymcc

  We have a dedicated server running ContOS 5.5. The server runs our Magento store and a basic php website with mysql. I have a spare rack server in my office (HP ProLiant DL360 G4) that has more than enough storage space to store a duplicate of our dedicated server. I would like to clone the dedicated server entirely and have a local duplicate. It wouldn't need to be kept in sync because I can do that with GIT. The reason I want to do this is simple; learn more about the dedicated server and CentOS. Is this possible? I have SSH access to the dedicated server and obviously complete access to the local server.

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• Your server administrator has limited the number of items you can open simultaneously.

  - by Kez

  I receive the following sync error in Outlook 2007 SP2: Your server administrator has limited the number of items you can open simultaneously. Try closing messages you have opened or removing attachments and images from unsent messages you are composing. It is stopping me updating another user's calendar, which is open within my Outlook. Change are simply not syncing, either way. Is there a fix for this, e.g. increasing the number of permitted connections on the Exchange Server? We are using Exchange Server 2007 on a domain.

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• How to remove empty revisions from existing svn dump file?

  - by Palmin

  I have an svn dump file which includes "empty" revisions (these were created by svnsync when synching only a subdirectory of an existing repository). Since I'd like to use the svnsync'd repository as the new master (no need to sync again), I wanted to get rid of all the empty revisions. Unfortunately, running the dump through svndumpfilter does not seem to remove the empty revisions, probably because svndumpfilter only looks at revisions it cleaned up by itself with the --exclude option (see also here) I was also looking into svndumptool, but it does not seem to provide this functionality. Is it possible to filter these revisions in any other way?

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• Changing location of the Links folder

  - by Dany Khalife

  I am setting up a small network and i am stuck at rerouting the Links folder on Windows 7. What i am trying to accomplish is to keep some particular directories stored on a server and all client computers will actually link to those folders, one of which is the Links folder. I took a look at the registry and found most of the things in : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders But the Links folder isn't there so im wondering if it's possible to sync that folder over several PCs too without moving all the user directories to the server Any hint is appreciated!

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• Exchange 2010 - No Push notification when when deleting emails from Outlook

  - by ThinkTank

  Hi I'm setting up a Exchange 2010 server for our test environment. I'm running Windows 2008R2 enterprise on this machine. Iv'e also installed all updates available for windows and exchange 2010 including rollup 1 and 2 for exchange that include bugfixes regarding push notifications. My problem is when deleting mail or marking mail as read don't trigger a push notification. The happens when I use webgui, mobile phone and Outlook 2007. When deleting a email in Outlook 2007 the changes get sent to the server since the changes are visible in webgui but not on mobile phone. I get push notifications when I get new emails since new emails appear instantly on the mobile phone. Is this normal behaviour on Exchange 2010? For me it seems a bit funny. If i force sync on mobile phone the changes appear. Iv'e tested this on both iphone and HTC HD2(Running Windows Mobile 6.5) with same results.

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• Restoring an Exchange 2010 user's calendar without rest of mailbox

  - by AlamedaDad

  I am trying to restore a user's calendar from backup, which was deleted by a sync problem on her mobile device. I've been able to restore her mailbox without a problem but I had to link it to a new AD user since she deleted the calendar several days before she reported the problem and the current backups of her account didn't include any calendar events, but all of her current email. I had to restore the mailbox from the day before she deleted everything. I've tried sharing the calendar and opening it in her account, then copying or moving the contents, but I get an error that outlook can't do the task because there are personal items. I tried bringing up the "Recovery User" I created, in Outlook and exporting the calendar events to a .pst, then importing them into the user's real account, but they all get created in a sub-folder called "Recovery User." In case it matters, she's running Outlook 2010 and we're using Exchange 2010 SP1. Thank in advance for help with this problem...Michael

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• local cache for NAS or network folder

  - by HugoRune

  I am planning to build a network attached storage (NAS) server. Is there a way to cache frequently acccessed files from the remote storage automatically on the local PC? (I am not looking for a way to sync whole folders like rsync, but rather something that automatically and transparently caches the last accessed 50 gb of files.) Ideally I am searching for something that caches writes as well as reads, since only one pc will be accessing the server (and one day of lost changes if the local cache is damaged would be acceptable) I looked into windows offline files, but as far as I could tell this requires manual interaction to disconnect the server or go into offline mode in order to use the cache. The server would probably be running Linux or freeNAS, the pc runs Windows xp, but could be upgraded to 7 if required.

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• Strange rsync behaviour

  - by Stewie

  So, I start with comparing two directories: [root@135759 ]# rsync -av test1/ test2/ building file list ... done sent 128 bytes received 20 bytes 296.00 bytes/sec total size is 6 speedup is 0.04 They both are in sync Now, let me create a file in test1 and copy it to test2 [root@135759 ]# touch test1/hello4.php [root@135759 ]# scp test1/hello4.php test2/hello4.php I verify that those are same: [root@135759 test2]# md5sum test1/hello4.php d41d8cd98f00b204e9800998ecf8427e hello4.php [root@135759 test1]# md5sum test2/hello4.php d41d8cd98f00b204e9800998ecf8427e hello4.php Thus, running rsync will show me 0 files. Why is the output not right ? [root@135759 ]# rsync -avn test1/ test2/ building file list ... done hello4.php sent 116 bytes received 24 bytes 280.00 bytes/sec total size is 6 speedup is 0.04

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• Restore Default OSX Home Folder Icons

  - by Cerales

  I want to keep folders such as Pictures and Documents in my home folder in sync between computers; at the moment, I'm using Dropbox to do this. On Computer A I added a symlink to the folders in my home directory to the Dropbox folder. On Computer B I deleted the existing Pictures and Documents folders and replaced them with symlinks to the folders in the Dropbox folder. This works very well, except that in Finder I don't see the nice little icons that Lion has by default for folders of a particular kind. Is there any way to restore these?

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• Snippets between desktop and laptop

  - by Jamie F

  The Situation: At work, I have a nice beefy desktop running Windows Server 2008 R2 (SharePoint dev machine). My handy ThinkPad is right next to it. Every once in a while I'd like to cut and paste or share something (usually text) between the machines: for example, I might be headed out and I'd like to take send the URL I'm reading from the desktop to the laptop. Of course I can create a share or use the Admin shares and create files to get stuff back and forth, but that seems heavyweight for what I'm thinking of. I'm thinking more along the lines of sending myself an IM. How do you get little things from machine to machine? Keep a shared folder pinned to the taskbar? Send an email to yourself? Bookmark sync? While on it, I'm looking for a decent multiple clipboard handler: maybe these two functions are combined in some nice little utility? I suspect I'm missing something simple here... Thanks... Jamie F.

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• Outlook activesync not pushing changes to devices

  - by Ryan Peters

  I recently set up my account outlook.com account and connected Outlook 2013 to it using ActiveSync. For a while, it was pushing changes I made, for example, from the web client to my phone and my Outlook when an email was deleted, moved, etc. The change was instant. Now all of a sudden, I have to manually refresh to see changes on either device. What happened? I just set up my wife's email account and it works fine, though she has no emails in it yet. I have several hundred. Why is mine not pushing sync changes and hers is? Thanks.

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• how to i lock a Harddrive to a certain drive letter

  - by Memor-X

  i have an external hard drive that i have set to Drive F which on it contains some programs that i have shortcuts on the desktop how i have a second external hard drive which i store my music on which is auto assigned to Drive E, due to someone thinking that Australians love to have f** wings on power plugs for hard drives while power boards have each socket close together i can have both of these hard drives set at the same time my music hard drive i normally only plug up when i sync music to my ipod but on occasion when i unplug my music hard drive and plug my old one back in or at times when i turn on my computer with the music hard drive in, turn off my computer and turn it back on with my old hard drive it's drive letter gets switched to E i get annoyed having to always go into disk management and change the drive letter back to F when this happens so i am wondering if I can lock my hard drive to always be F, if anything else tries to be F it can fail for all i care If there is a batch file i can use that'll go though all the steps of Disk Management to change a drive's letter, that way i can set it up in the startup folder

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• PSU Suggestions for SLI EVGA GTX 680 + i7

  - by JMH

  So i am putting together a new machine and am trying to determine the best PSU to go with for this setup. Here is the build i am thinking about Processor Intel Core i7-3770K Ivy Bridge 3.5GHz Motherboard ASRock Z77 Professional Graphics Card (2 SLI) EVGA 02G-P4-2680-KR Sound Card HT | OMEGA eClaro 7.1 Fan/Heat Sync ZALMAN CNPS9500A-LED Case COOLER MASTER HAF X RC-942-KKN1 RAM G.SKILL Ripjaws X Series 32GB (4 x 8GB) SSD Of some Sort So my guess is that i need a 750 -1000W PSU, but which brand.... how much, etc --- really in the woods. Thanks -Josh

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• Exporting Speed Dial settings from within Firefox into Chrome Speed dial...

  - by Paul

  Win7 Home Prem 32-bit I usually use Firefox as my browser of choice and have been using the Addin Speed Dial for ages. I have many sites added on multiple tabs within it. I have just installed the Google Chrome browser which also has the Speed Dial Extension. Is there a way to export/import/copy/sync my Speed Dial settings i have in Firefox to the Speed Dial extension in Chrome? I know i can export from Speed Dial in Firefox but can't see any easy way to import from Speed Dial in Chrome.

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• Replication with SQL Server 2005 Express Edition and SQL Compact Edition 3.5

  - by Andy Gable

  I need some information on SQL Server 2005 Express edition. What I want to do is have my central database servin local machine databases IE back office Cental database |------------------- Shop floor Terminal 1 |------------------- Shop Floor Terminal 2 |------------------- Shop Floor Terminal 3 |------------------- Shop Floor Terminal 4 |------------------- Shop Floor Terminal 5 |------------------- Shop Floor Terminal 6 I want is so that Shop floor terminals would PULL down ANY changes to the database as and when they happen (selected changes are needed change would be Add new item / Edit Item info that is used by Shop floor terminal (ie price, description, sale group) Is this possible with SQL 2005? I have the ability to make my own Sync Applciation but I would need to know what to look for in the database that trigers a update Many thanks for any advice you can give Andy

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• Ubuntu VM Guest - Samba Service Not Accessible from VM Host via Hostname

  - by phalacee

  I have a Windows 7 Workstation with a Ubuntu 10.10 VM running in Virtual Box 3.2.12 r68302. I recently updated Samba and winbind, and since the update, I am unable to access the machine via it's hostname (\mystique) from the VM Host. I can access it by the "Host-only" IP (\192.168.56.101) and the DHCP Assigned IP address (\10.1.1.20) and I can connect to the webserver on the machine via it's hostname (http://mystique/). As stated, accessing this machine via it's hostname worked fine prior to the update, but has since stopped working. I have added the hostname to the smb.conf for the netbios name, to no avail. My smb.conf [global] section looks like this: workgroup = NETWORK netbios name = Mystique server string = %h server (Samba, Ubuntu) dns proxy = no log file = /var/log/samba/log.%m max log size = 1000 syslog = 0 panic action = /usr/share/samba/panic-action %d encrypt passwords = true passdb backend = tdbsam obey pam restrictions = yes unix password sync = yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . pam password change = yes map to guest = bad user usershare allow guests = yes

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• Alfresco Community Edition Consultants

  - by Talkincat

  I am in the process of putting together an document management system based on Alfresco Community 3.2r2. Because Alfresco will not allow its partners to work with the Community edition, I have found it devilishly tricky to find consultants that specialize in Alfresco to help me with this project. Can anyone point me in the direction of someone that can help me get this system up an running? I will mostly need help with integrating Alfresco with Active Directory (LDAP passthrough, user/group sync and SSO) and performance tuning the system. Any help is greatly appreciated.

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• Access to NTP via IP which doesn't change often

  - by faulty

  I'm trying to sync the clock of our production server located in a data center with pool.ntp.org. For security reason, our servers has no internet access unless we requested to open specific ip/port explicitly. I worked out a list of IPs based on 0.asia.ntp.org 1.asia.ntp.org 2.asia.ntp.org 3.asia.ntp.org Not realizing ntp.org is using round robin DNS and the servers being voluntary, they changes from time to time. In fact the IP I've got from 3.asia.ntp.org last month is no longer working now. I'm wondering if there's a publicly known NTP server that doesn't change as often or if there's a way to go around this without having to request an update to the firewall on a monthly basis. I believe many admin is facing the same issue here.

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