Ubuntu Servers :: Using SSD As Cache For Database Operations

Mar 28, 2011

Had anybody ever tried flashcache [URL] under ubuntu? My idea is to increase the throughput of a small server especially for database operations by using an SSD as cache.

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Ubuntu Servers :: How To Clear Postgresql Database Cache

Jan 16, 2010

I just wanna clear database(postgresql) cache so how to do that..and also adempiere cache...

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Ubuntu Servers :: Unable Me To Manage Files And Other Operations From Another Computer?

Jan 11, 2010

I need a tool that will enable me to manage files and other operations from another computer, access to my server. VPS and other host they usually provide cpanel and other webadmin app to do that.

I need advices on the followings:

1. FTP, allow me to access to my folder, like a web host
2. Access to config the server settings
3. Probably a GUI similar to cpanel

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Ubuntu Servers :: Autoconf 2.6.4 Buggy Cache

Apr 24, 2010

Edit: solution is installing older version = "aptitude install autoconf2.13"

sudo aptitude install autoconf
* then rebuilding php 5.3.2 configure script:
rm configure
./buildconf --force

[code]....

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Ubuntu Servers :: Setting Up A Cache Improve The Performance?

Feb 26, 2010

dns cache serThis is probably more of a network question but I figured some one who is a network expert might know. Currently my organization has DNS servers. But my questions is would setting up a cache server improve the performance any? When I first thought about it i thought probably not. But since it stores information in ram that made me think maybe it would improve network performance a little.

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Ubuntu Servers :: Update Apt-cacher Cache Automatically?

Mar 4, 2010

Is it possible to configure a cron script to update the packages in /var/cache/apt-cacher/packages? When a client machine updates a package, apt-cacher checks that it's cached package is up-to-date, and downloads a new version if it is not.

I'd like apt-cacher to check it's cached packages every night and download any updated ones, on the premise that since it exists in the apt-cacher cache, someone has that package installed and is going to want to update it. Is this possible? Does apt-cacher do this anyway, and I haven't noticed?

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Ubuntu Servers :: Forcing A Server Cache Update?

Dec 6, 2010

I'm working on a web site. I'm sometimes finding that when I update a file, some mysterious force intercepts my changes and refuses to let me see them. I have confirmed that this mysterious force is a server cache.By adding a "?" to the end of the URL, I can see the changes I've made. Is there a way to somehow force my Internet provider to update the server cache?

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Ubuntu Servers :: Process Hangs While Cleaning Cache?

Dec 7, 2010

I have a NFS server and I'm periodically cleaning the cache by using the following lines:

Code:

/bin/sync; /bin/echo 1 > /proc/sys/vm/drop_caches
/bin/sync; /bin/echo 2 > /proc/sys/vm/drop_caches

during the last days the cleaning process gets stucked at '/bin/echo 2', here's the process data:

Code:

27426 root 20 0 5488 704 576 R 100 0.0 896:06.34 /bin/echo 2

the process keeps running, so I find this more strange since it's not in zombie or D state.

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Ubuntu Servers :: Cache Authentication Credentials - Libpam-ccreds

Aug 9, 2010

I would like to authenticate my laptop against LDAP server.

My setup works great when LDAP server is reachable.

I used the outdated howto: [URL] to configure libpam-ccreds in lucid.

If I try to login with network down I am getting message: You loged in using cashed credentials. and then Authentication failure.

sudo cc_dump looks OK.

Should I use pam-auth-update insted?

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Ubuntu Servers :: Cache Directory And File Structure In Memory?

Aug 11, 2010

i am running Ubuntu Lucid x64 as a fileserver that shares its files via SFTP, NFS and Samba. Currently the hard disks are configured to go to standby if they are not needed. This works perfectly as long as no one browses the shares or my HTPC is running: That one repeatedly looks through the shares for new music or movies. In other words my problem is that the disks are spinning up a lot more often than they should have to. Additionally the spin-up time delays the response time while browsing. Since the machine has a lot of unused RAM i want to tell the kernel that it should keep the directory structure in memory. That way the disks would not need to spin up every time someone browses through the directories.

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Ubuntu Servers :: Cache The Couple Of Site Because Of Our Country Have Bandwidth?

Mar 25, 2011

I used the Ubuntu server 10.10 for cache and proxy purpose. I install squid 2.7 stable 9. My problem is to cache the some url by force. eg . [URL]...I search the clues by using google. but I only found how to block the url. so I come here and request the advice. I want to cache the couple of site because of our country have bandwidth problem.

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Ubuntu Servers :: How To Create New Database

Mar 30, 2010

ubuntu 9.10 64 biti try to install XAMPP and i want to create new database by use phpMyAdmin
at MySQL localhost create new database it show No Privileges how to create new database from terminal

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Ubuntu Servers :: Setting Up A Database On 10.04?

Aug 19, 2010

I want to set up Ubuntu Server 10.04 on a computer I have lying around, set up a database for storing information, and a website for accessing it, which is only avaliable on my local network (it would just have an IP address on my local network). How would I do something like this?

I want to set it up on probably a Dell, and I want to be able to have multiple fields on the website that people see when they go to that IP address where they can enter information to be recorded in the database, and then be able to easily access it with a login, which different people would have different ones, so they can see just the information they entered..

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Fedora :: Error: Caching Enabled But No Local Cache Of //var/cache/yum/updates-newkey

Sep 24, 2009

I don't understand this error nor do I know how to solve the issue that is causing the error. Anyone care to comment?

Quote:

Error: Caching enabled but no local cache of //var/cache/yum/updates-newkey/filelists.sqlite.bz2 from updates-newkey

I know JohnVV. "Install a supported version of Fedora, like Fedora 11". This is on a box that has all 11 releases of Fedora installed. It's a toy and I like to play around with it.

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Software :: Redirecting APT Cache - Can Redirect Cache Of Apt To A Specified Folder Either On Command Line Or Via A Config Setting?

Jan 5, 2011

I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.

Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).

I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?

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Server :: Squid Cache System - Make It Cache All Files Like .exe .mp3 .avi

Mar 6, 2011

I installed squid cache on my ubuntu server 10.10 and it is work fine but i want to know how to make it cache all files like .exe .mp3 .avi ....etc. and the other thing i want to know is how to make my client take the files from the cache in the full speed. since am using mikrotik system to use pppoe for clients and i match it with my ubuntu squid

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Ubuntu Servers :: Create New Database In OpenLDAP?

May 24, 2010

I want to create a new LDAP database.

Part of the new configuration is

Code:
dn: olcDatabase={1}hdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcHdbConfig
olcDatabase: {1}hdb

[Code].....

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Ubuntu Servers :: Best Way To Lock Down Database Server?

Sep 1, 2011

What is the best way to lock down database server?

via ufw and iptables.

Should I close port 80 on it?

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Ubuntu Servers :: Trying To Build Own Stock Database

Sep 1, 2011

Looking for suggestions on what tools to use. I'm a finance major with limited programming knowledge. I would like to start collecting my own stock data. I would like to pull data from google finance or something similar. Also, I subscribe to data from AAII, American Asso. of Individual Investors, and would like to add that data into the database. and be able to have a nice gui to run queries on. My interests are finding if there are various different arbitrage opportunities and fundamental value investments.

Very low budget. Want to run it on ubuntu. I was looking at Postgre SQL as the database, but really have no idea what is optimal. Not to sure on the gui or how to pull the data. If anyone is interested in the topic and would like to help me set up and run algorithms let me know too.

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Ubuntu Servers :: Open Synaptic Package Manager - Internal Error Opening Cache (1)

Jul 22, 2011

while trying to open synaptic package manager i get the following errer "E: The package clamav-daemon needs to be reinstalled, but I can't find an archive for it. E: Internal error opening cache (1). Please report."

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General :: Difference Between Hardware Cache And Slab Cache?

Nov 22, 2010

I am reading slab allocator, it defines slab cache, i am quite confuse is it same as hardware cache?

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Ubuntu Servers :: Share Database Tables Between Projects?

Jan 5, 2010

If any real hassle using a database between web sites. Not obviously phpBB but rather various projects that need a common read access to maintain a relation

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Ubuntu Servers :: MySql Database Wont Start?

Apr 8, 2010

I have a mysql database and i use it with apache for my webpages. And I guess it dosen't start when the computer starts so I have to manually start it with "sudo /etc/init.d/mysql start" This returns fail so i went to '/var/run/mysqld/' and the folder was empty. I don't know if this is the problem or not. How can I fix this?

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Ubuntu Servers :: Unable To Access Mysql Database?

Aug 15, 2010

We started our project (it's a website "employee performance appraisal system") in windows by starting with some html forms and then slowlyadded php ,javascript and other stuff in windows we had no issues of insertion and retrieval of data from thedatabase.Now,we decided to shift the entire stuff to drupal the html forms along with those php files but we had 2 issues with this1. the first one was ..we created "page" for each html form and copied the html code into "page" but we didn't find where our pages are getting stored (do they get stored in mysql database that we create for drupal siter do they remain as html pages somwhere?)2.second problem was ...for admin in drupal I gave the username "root" and a password ..similarly for mysql also I gave a password.

now I used phpmyadmin and created another database called "appraisal" which is supposed to hold the data of our website.when I try to insert data into one of the tables of this database (attendance table) ,the following error occured "Attempt to connect failed access denied for user 'root'@'localhost'(using password:NO) cannot run querry insert intoattendance values('x','y')" Access denied for user 'root'@'localhost' (usingpassword:NO)Also I'm unable to access mysql as a normal user only super user can access and can we unset the password that's required to reach mysqlprompt?

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Ubuntu Servers :: Berkeley Db Database For Virtual Users?

Jan 31, 2011

Im configuring virtual users for ftp and in few guides i find that i need this database.This guides were outdated so i cant follow them(by downloading with its commands), can anyone explain me something about this db(like, where to download, how, did i have installed other version of this db with ubuntu server default packages)...By the way i need to create login file with users and their passwords, for example:tomfoofredbar
Then i must create actual database file like this:

Code:
db_load -T -t hash -f logins.txt /etc/vsftpd_login.db
(that requires the Berkeley db program installed)

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Ubuntu Servers :: Mailserver With Data Store On Database?

May 29, 2011

Please tell me spesification if i want buid mail server on ubuntu 10.04 with good features :

1. For MTA ??
2. For Mail Filtering ??
3. For MDA ??
3. For Webmail ??
4. For Mailling List ??

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Ubuntu Servers :: Hide A Database From The Root User?

Jun 5, 2011

Does anybody know if it is possible to hide certain databases from the root user in MySQL?

It may sound stupid, since the root is the root and all that, and it may feel strange but it kind of adds a level of abstraction which I want to give the "root user", and I want to avoid going down the route of creating a new mysql instance on the server.

I had wondered if there is some kind of 'hide' parameter for a database or whether it is possible to change the root username to something else (e.g. 'realroot') and then create a new user 'root' with all the same privileges (except those on the hidden databases).

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Ubuntu Servers :: Mysql Sharing Database To Windows Xp?

Jun 10, 2011

i have installed mysql in ubuntu server 10.04 and want to access the database from windows xp.

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Ubuntu Servers :: How To Postfix And Email Users Database

Jun 14, 2011

I have installed ubuntu 10.04.2 LTS and followd all the steps from the tutorial from [URL], postfix and dovecot works fine ...but ...is there any way to create email accounts (postfix account) without creating linux accounts for each mail account ?

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General :: Ssh Tunneling Through Two Servers To Get To Database

Jan 29, 2010

I'm having trouble ssh tunneling through two servers to get to my database. Server3 is restricted to all except from server2 and I'm at server1. So on server2 i do ssh -L1434:server2:1435 -l user server2 - this works i'm able to connect to the db on server3 from server2. But on server3 i'm trying to ssh -L1433:server2:1434 -l user server2

- and I get 'connection refused'. I tried telnet server2 1434 from server3 and i get 'connnection refused'. I checked the firewall is open on server 2 - firestarter confirms that port 1434 is open to everyone. I'm not sure what I'm doing wrong, but I have a hunch that maybe firestarter on server2 is not working correctly, because it also shows that port 22 is open to everyone and I can telnet server2 22 and I'm able to connect.

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