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• Command line import of database using latin1 encoding

  - by chrisjlee

  I'm using a particular cloud hosting solution (one which i won't name) and they don't provide ssh access so i'm at a whim on how the database is dumped. I downloaded the dump which is packed into a tar.gz file. I discover that this file utilizes latin1 encoding. Which i don't get to specify the encoding for the host i'm using because i don't have SSH access or DB access. I try to import it via command line for my local development environment (mysql -uroot foodb < file.db) like i usually do with other databases but am having problems. Is it possible to import a database via command line by specifying which encoding (preferably latin1) before importing it? Or do i have to convert it to UTF8?

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• How to connect to my Local Host?

  - by Mazen Ayman

  I have Mac OSx (mountain Lion), Windows 7, Fedora 17 installed on my Macbook pro, and I can't connect to the local host on any of them, it always tells me can't connect. I'm learning mysql and from the tutorials, I guess I have to be connected to my localhost to create databases and stuff, but do I have to install something first for it to work? P.S. - for mac, I don't have the option "web sharing" to enable in the system preferences. - for windows, I tried to enable IIS, but it gives me an error ... I also tried to work it out using the cmd.exe but it just doesn't work as well. - for fedora, I'm new to it, but I just installed and I have no idea why it's not working.

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• Guaranteeing ACID properties for InnoDB databases.

  - by plinehan

  What steps must one take to ensure that an otherwise defaultly-configured InnoDB server is truly ACID compliant? The InnoDB configuration page mentions that the hardware itself must be configured to honor fsync calls, i.e. disable any write-back caches. This page mentions some other concerns, but may be conflating the binary log and the InnoDB log, and may be a bit out of date regarding default settings for MySQL 5.x. Upon reading the binary log document page it would seem that the "sync_binlog=1" setting is not required for ACID properties in general, only for ACID properties vis a vis point-in-time recovery and replication. So, is disabling write-back disk caching sufficient, or are there other settings that must be tweaked?

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• Find out ESXi host from VM? [duplicate]

  - by Kyle Brandt

  This question already has an answer here: Determining the name of the VMware host of a VM guest - from the guest 3 answers I have a monitor that is running on all guests, Windows and Linux. I'd like to send back the Parent host of the guest with this monitor, How can I found out the VM host from within a ESXi VM? Ideally I'm looking for a universal way to do this from both Windows and Linux, but if they are separate paths that okay. Using something from VMWare tools would be fine, but I'm not currently using anything running the vSphere API.

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• Wamp website stop responding till restarting services [on hold]

  - by sparoww

  My first message here after many non conclusive research about my problem. So I'm administering a drupal website and I have migrate all application to new version: PHP 5.3.5 - 5.4.16 Apache 2.2.17 - 2.4.4 MySQL 5.1.36 - 5.6.12 With the new Wamp version. Also update Drupal from 6.19 to 6.30. I have update it by uninstalling everything in the server and reinstalling the new version. Since this update the website sometimes become unresponsive till we restart wamp. No warrning and no error in event log. Can somebody help me with this problem? I also cannot enable SSL, after configuring it wamp won't start. I have do many research and test but I still have many issue. Here I paste my configuration files: httpdconf: http://pastebin.com/qq1YvPKe httpdsslconf: http://pastebin.com/c4JnFyMw phpini: pastebinDOTcom/y8a30id6 Thanks in advance.

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• Running cronjob in the odd-numbered days

  - by Spacedust

  I'm currently running my MySQL backup script on every day of the week: 0 1 * * 1 sh /root/mysql_monday.sh 0 1 * * 2 sh /root/mysql_tuesday.sh 0 1 * * 3 sh /root/mysql_wednesday.sh 0 1 * * 4 sh /root/mysql_thursday.sh 0 1 * * 5 sh /root/mysql_friday.sh 0 1 * * 6 sh /root/mysql_saturday.sh 0 1 * * 0 sh /root/mysql_sunday.sh Now I would like to keep backups for one week more so two weeks in total just to be more secure. For example: I though I can create one backup file on monday in the even days and then again in the odd-numbered days. For even days I can just use: 0 1 */2 * 1 sh /root/mysql_monday_even.sh 0 1 */2 * 2 sh /root/mysql_tuesday_even.sh 0 1 */2 * 3 sh /root/mysql_wednesday_even.sh 0 1 */2 * 4 sh /root/mysql_thursday_even.sh 0 1 */2 * 5 sh /root/mysql_friday_even.sh 0 1 */2 * 6 sh /root/mysql_saturday_even.sh 0 1 */2 * 0 sh /root/mysql_sunday_even.sh But what about the odd-numbered days ?

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• CentOS (rel6) with default python 2.6, but seperate 3.3.5 installation

  - by Silvertiger

  I have a CentOS server (rel6) that had python installed (2.6), but I needed a few features in 3.3+. I installed 3.3 into a seperate folder and made a symbolic link to execute it: I installed setup tools: yum install python-setuptools I installed a needed module"pandas" easy_install pandas I executed my pyton script, which encountered an error that required i use a newer version I downloaded and installed Python 3.3.5 to it's own folder so as to not override my default python wget http://www.python.org/ftp/python/3.3.5/Python-3.3.5.tar.xz tar xJf ./Python-3.3.5.tar.xz cd ./Python-3.3.5 ./configure --prefix=/opt/python make make install Made s symbolic link to allow me to execute this new python: ln -s /opt/python3.3/bin/python3.3 ~/bin/py The problem is that when I execute the python script with my new py alias, it does not have all the addons needed (explicitly MySQLdb) which the default install does. How do i go about installing the MySQLdb module, or any for that matter, to be reachable or useable for the new Python 3.3.5 installation? Or is there a way to make the current modules in 2.6 available to 3.3.5 as well?

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• Improving server security [closed]

  - by Vicenç Gascó

  I've been developing webapps for a while ... and I always had a sysadmin which made the environment perfect to run my apps with no worries. But now I am starting a project on myself, and I need to set up a server, knowing near to nothing about it. All I need to do is just have a Linux, with a webserver (I usually used Apache), PHP and MySQL. I'll also need SSH, SSL to run https:// and FTP to transfer files. I know how to install almost everything (need advice about SSL) with Ubuntu Server, but I am concerned about the security topic ... say: firewall, open/closed ports, php security, etc ... Where can I found a good guide covering this topics? Everything else in the server... I don't need it, and I wanna know how to remove it, to avoid resources consumption. Final note: I'll be running the webapp at amazon-ec2 or rackspace cloud servers. Thanks in advance!!

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• Is there a way to communicate DBMS with raw memory block or binaries

  - by darkcminor

  I am trying to communicate a numerical matrix operations library like LAPACK with any DBMS. Is it possible to send/receive complete matrices as binary or as a direct memory pointers to process them (it will be something like: The Outside library processes data stored in DBMS, then it computes some huge matrix stuff and then via memory block or a binary DBMS get the result from library)? The main purpose is speed and avoid passing through a flat file, and last but not least, use library toefficiently do some operations DBMS are not designed to. * Is it possible that Oracle, SQL Server, MySQL support this technique?.

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• Fine-tuning a LNMP stack

  - by Norman

  I'm in the process of setting up a server with 4GB RAM and 2 CPUs. The stack will be CentOS + NGINX + MySQL + PHP (with APC) and spawn-fcgi. It will be used to serve 10 Wordpress blogs, 3 of which receive about 20,000 hits per day. Each Wordpress instance is equipped with the W3 TotalCache. I have a few variables to play with: NGINX (How many worker_processes, worker_connections, etc) PHP (What parameters in php.ini should I change? What about apc?) Spawn-fcgi (Right now I have 6 php-cgi spawned. How many of them should I have?) I realize it's hard to tell without testing, but if you could please provide me with some ballpark numbers, that would be helpful too.

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• CentOS Existing host to new host with all data/files

  - by ganesh

  Good noon. Our small startup management decided to move our production server from existing provider to azure. We have centOS on both. It is for classified's related site, considerable amount of data and ~thousands users with their disc space quota. This is our first time moving our servers. I need your Guidance and suggestions on these. 1) How to migrate the mysql db (dump OR slave OR copy filesystem)? 2) How to manage the emails during the downtime. 3) Manage the files 4) How to security/Firewall check list for the new system 5) IP/DNS related Checklist 6) Anything that I missed out!. Since first time, planning to be more cautious. Any reference documents Highly appreciated. Thank you all!.

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• Logging in with a different password than the database password, PHPMyAdmin

  - by Andrew M

  I am trying to install PHPMyAdmin on my server to manage my MySQL databases. Right now I have only one I want to add, but I would like to be able to manage multiple databases from the same account on PHPMyAdmin. How would I configure PMA so I could login with "andrew" and a password of "examplepassword" instead of the annoyingly long and unchangeable database user and password I am provided (ie. db3483478234, password of random characters)? I can't seem to find an area to specify a different password than the regular database username and password.

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• Starting with administering a linux box

  - by Josh K

  I'm rather new to this, and I'd like to play with administering a linux box. Things I need to know how to do: Setup subdomains Setup FTP accounts Setup full domains / add domains MySQL setup / install / management LAMP setup / install / management This is probably going on a CentOS distro. I'd like links or a break down on how I can learn to do this. I am comfortable with a command line, but I'm trying to move from shared hosting to a VPS and would like to have some idea on how deep the water is before I do.

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• Simple UPDATE query with (sometime) long query times

  - by Eric

  I run a dedicated MySQL server (2 cores, 16GB RAM) serving 100-200 requests per second. It is getting sluggish during peak traffic and I have a hard time optimizing the server. So I'm looking for some ideas now that I have done lots of Innodb fine-tuning with the "TUNING PRIMER" The query that now generates most slow queries is the following (see result from mysqldumpslow): Count: 433 Time=3.40s (1470s) Lock=0.00s (0s) Rows=0.0 (0), UPDATE user_sessions SET tid='S' WHERE idsession='S' I am very surprised to have so many long queries for such a simple query with no locking. Fyi, the table is InnoDB and has 14000 rows. It contains all active sessions on the site with approx 10 UPDATE and SELECT hits per second. Here is its structure: CREATE TABLE `user_sessions` ( `personid` mediumint(9) NOT NULL DEFAULT '0', `ip` varchar(18) COLLATE utf8_unicode_ci NOT NULL, `idsession` varchar(32) COLLATE utf8_unicode_ci NOT NULL, `datum` date NOT NULL DEFAULT '0000-00-00', `tid` time NOT NULL DEFAULT '00:00:00', `status` tinyint(4) NOT NULL DEFAULT '0', KEY `personid` (`personid`), KEY `idsession` (`idsession`), KEY `datum` (`datum`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci Any ideas?

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• Migrating from MyISAM to XtraDB

  - by Wringley

  Just a few questions that I just can't find anywhere about migrating to XtraDB. My group has been using MyISAM dbs for production and was wondering how hard is it to migrate to Percona's XtraDB and how would you go about doing so? Would I have to migrate MyISAM to InnoDB first or can I go straight to XtraDB? I installed Percona Server with XtraDB package on my Fedora machine but the documentation isn't very helpful as to how to use it so I was wondering does Percona just piggyback on a standard MySQL installation or is it a separate entity? Links to documentation on how to solve my questions would be fantastic. Thanks, Server Newbie.

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• How do you set up redundant servers?

  - by user59240

  To the sysadmins out there, I'm trying to get an idea about how you go about maintaining redundant servers for small projects. The modest number of servers in my mind is two, and three main essential services come to mind: HTTP, mail and DNS. How do you automate this duplicity? Is rsync the tool of choice (again, for small projects)? In addition to common tools for these tasks, references to books and articles would be greatly appreciated. The more hands-on the approach, the better. Thanks!

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• SQL Query fields change to uppercase on upload to server.

  - by Conor H

  Hi There, I have just finished developing an app using CodeIgniter. When I upload it to my Host (Hostgator shared) some of the SQL text is converted to uppercase and rendering the app unusable. In my database I have two tables client and transaction. When I upload the App to the server client and transaction is replaced with all caps. Obviously this is bad as MySQL queries are case sensitive. At first I was uploading with FTP and thought FTP was to blame. I then zipped up the app and uploaded the archive, unpacking it on the server shell. Still no joy. Any ideas on how to fix this? At the moment I just have to go into the server and edit my queries back to lowercase.. Cheers in advance for any ideas.. --Conor

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• Problems executing check_mysql plugin

  - by Brian

  I'm attempting to test out the check_mysql plugin for Nagios using the command line. It works great when I'm just checking localhost but when I try to specify a different server (using the -H argument) I keep getting the following error message: CRITICAL - Unable to connect to mysql://nagios_user@{remoteServerHostname}/ - Access denied for user 'nagios_user'@'{localServerHostName}' (using password: YES) It looks like it's trying to connect to the database using the localhost server even though I've specified a different host name. I've already set up this user on the remote database and they have correct permissions. I'm just trying to figure out why the script keeps inserting the localhost server name instead of the remote one.

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• Getting \r\n newlines to display properly in Mantis database

  - by matt_tm

  I've exported a Mantis project from one server to another and despite the MySQL SQL file (from which it was populated) showing: (15375,'\r\n1. Log out\r\n\r\n2. When logging in, start ... The final end-user view loses the \r\n and shows it only on one line: 1. Log out 2. When logging in, start typing When viewing through phpMyAdmin, I can see the record properly: 1. Log out 2. When logging in, start typing How can I correct this behavior when displaying this data?

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• AutoMatically Creating New Sites When New Users Sign Up

  - by Eddy Freeman

  I would like to know how hosted eCommerce sites like www.shopify.com, www.3dCart.com etc.. automatically creates new sites when new users sign up. What kind of tools do they use to create those sites into the users profile. I have tried googling but couldn't find an answer. Does any of you guys have any knowledge or experience that you can share with me? Or do you know a tutorial that you can point me to? I hope my question is clear. Thanks for your help.

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• securing unpatched websites

  - by neuron

  I have a client with a lot (read several thousand) websites in several old cms solutions that are no longer maintained. Now moving all of them to a maintained solution isn't really an option at this point. So I'm thinking about ways to secure the solutions without patching them. The solutions are mostly joomla 1.0/1.5 and wordpress. What I'm thinking is something like this: mod_suexec to lock everyone into their own home directory apparmor to deny any and all file writes by default. (exclude by default, include things like "images" directories). use htaccess to prevent anything in writable directories from being executed. (aka disable php_engine for images/ directory). mysql triggers to check the "users" tables to prevent adding new admins/superadmins. Does this make sense? Is it viable? Am I missing something obvious?

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• How to change password schema for Dovecot user authentication for an already existing mail server

  - by deb_lrnr

  Hello, I have an email server setup on Debian Lenny with Postfix, Dovecot, SASL and MySQL. Currently, the password scheme in my dovecot-sql.conf file is set to: CRYPT default_pass_scheme = CRYPT I would like to globally change the scheme to something stronger like SSHA, or MD5-CRYPT and re-hash all passwords with SSHA. What is the best way to do this? The Dovecot wiki mentions how passwords that don't follow the default scheme defined in dovecot-sql.conf can be prefixed with "{ssha}password", but I couldn't see anything regarding changing an already-existing scheme to a new one for all passwords that are already in the database. Thanks for your help!

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• some novice questions about VPS

  - by Camran

  I have ordered a VPS today, and I am still setting it up. I have some Q though: Also, I have just installed apache, php and mysql. 1- I don't understand which folder my website should be in. Is it the 'www' folder or the htdocs folder I should upload my site to? Because they are in entirely different directories. 2- How do I even upload files? FTP program? How do I install one, and which one? Thanks

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• Show Slave Status not working from console, nor client.

  - by Mr. Leinad

  Hello, I have a somewhat strange case. Whenever one of my coworkers executes this line: show slave status; from their MySQL clients, it works smoothly. But if I do that, it says: ERROR 1227 (42000): Access denied; you need the SUPER,REPLICATION CLIENT privilege for this operation We are all going against the same database, and if I check privileges I can see: GRANT ALL PRIVILEGES ON . TO 'usermysql'@'%' IDENTIFIED BY PASSWORD 'password' There's something wrong with my computer.. but I can't pinpoint where it is.. Thanks EDIT: It's kinda bizarre.. it goes through a VPN remotely. But if I change the internet connection, then it works.. If the previous internet connection is restored, it doesn't.. Could we classify this among the great mysteries of the world? Or someone has an idea?

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• Tool to convert a series of image into a single sprite sheet

  - by senbei

  Are there any known tools that can take a serie of pictures and generate a single sprite sheet from them? (ie. place all the images into a single image, one after the other). I have found some very basic software doing this, but I am looking for one that is able to detect duplicate frames as well as outputting some kind of data structure that allow me to programatically retrieve the coordinate of each frame on the generated image. I need this to convert existing animations with many duplicate frames and I am a bit surprised that there is no standard software to do this, as most infos you can find on the web about this is people doing this completely manually.. Any recommendations?

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