Remove Server MySQL Connection
May 13, 2009
I bought a VPS to run a part of a application I have and it needs to connect to my database in cpanel. I have set everything up properly and allowed the remote server to connect to my server, I updated the DB connect file with the correct mysql server username and password. But when I try and run the script I get this error.
Quote:
Client does not support authentication protocol requested by server; consider upgrading MySQL client in
I'm not 100% sure what to do. I don't understand why it wouldn't work because it works perfectly on the main server with my scripts. But I get that error message on the remote server.
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Aug 17, 2012
How can i remove "Connection and keep-alive" from response headers ? I am using Apache http server to load balance two tomcat nodes
Apache Server- Apache/2.4.2
mod_jk - 1.2.27
Apache tomcat - Apache Tomcat/7.0.23
JDK - 1.6
I have also enabled SSL in the apache http server using mod_ssl. The load balancing works fine, but in all the response headers these connection attributes are added "Connection: keep-alive keep-alive: timeout=5"
Is there a way to remove these headers? I do not want these headers to be added in the response. I have also tried mod_header to unset these headers, but no use. HTTP/1.1 protocol is being used, so eventhough the connection is not present in the header, the connection would should be considered as persistent. Why is apache sending these attributes explicitly in each response. I just want to get rid of these attribute...
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Aug 12, 2007
some vBulletin customers facing to that error message, with session table with attachment only. Other just work fine. It's not because of server load. The load is just around 0 - 0.1
I have increased wait_timeout to 200 and max_allowed_packet to 64MB. Each attachment file in those vBulletin is just around 1-3MB.
Is there any idea why and how to fix?
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May 7, 2015
I freshly installed Plesk 12.0 on Ubuntu 14.04. Everything works accept the MySQL database creation.
When I try to create one, i get this error :
error: the test connection to the database server has failed because of network problems: connection refused...
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Jun 8, 2007
I have a database server – mysql.xx.com which is the main MySQL server in H-Sphere.
I've created a database from mysqladmin interface.
I can use the database without a problem but when I’m trying to access the database from another server that I’ve just installed, the PHP application says that it can not connect to the database.
Another thing is that if I move the php app with the same configuration file under a shared account under another H-Sphere server, it's working perfectly.
I’ve read the H-Sphere documentation about an option to enable remote access to the mysql server which I can’t find anymore under our H-Sphere 2.5 Patch 8.
I’ve done a lot of searching to see how can I make that PHP application to connect to mysql.xx.com but it seems that although I’ve run the command grant all …. Command for that database, it still doesn’t work.
One final thing – from that new server if I run "mysql –h mysql.xx.com –u user –p" I can connect to the database and do a use database, show tables etc.
From iptables on mysql.xx.com I see that it accepts connections from outside.
This issue of not getting that PHP application to connect to mysql.xx.com can be related to the fact that H-Sphere is using the server or what should I try further?
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Oct 1, 2009
I'm trying to diagnose where my problem is coming from.
I have a site hosted with Integra Telecom. The site is connecting remotely to a MySQL database hosted on Media Temple.
My problem is that the site's connection to the MySQL database seems to be fluctuating throughout the day. Sometimes the site is up, sometimes it's down.
When it was down, I got the error: "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)"
So is the problem with Integra Telecom or is my problem with Media Temple?
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Nov 3, 2009
Currently mysql.max_persistent and mysql.max_links are set to -1 which means unlimited
to optimize mysql, should i keep this unlimited or is it good to limit this? If i have to limit it, what is the best value that I can put there?
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Jul 15, 2008
I have win2003 server and running plesk 8.4, there is a website on it and it gives me error with mysql max_connection even I set the limit 1 million or 10000 no matters.
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Mar 18, 2008
We have a front end server for the website Zymic.com (a free web hosting community), a mysql server and a main server for hosted websites. The problem lies between establishing a connection from the Zymic.com server to the database server - to sum it up, the connection just "hangs". We have never had this problem before, never edited anything which would cause a problem, its completely spontaneous.
My administrator has spent endless hours trying to debug the problem, here are some notes he gave me:
1. Ping to the mysql machine works fine.
2. Telnet to port 3306 of the mysql machine works great too – meaning NOT a network issue.
3. Strace on the connection shows it hangs when it calls the server and waits endlessly for response.
4. The mysql machine listens to the IP and port 3306 and connects great to the hosting server via SSH.
5. It's NOT a max connection issue but something to do with the mysql socket itself.
Here is a test from another site on the server to the mysql server:
[url]
Code:
<?php
mysql_connect('75.126.138.74', 'wkscript', 'PASSWORD') or die(mysql_error());
mysql_select_db('domains_data') or die('SELECT ERROR : ' . mysql_error());
?>
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Dec 21, 2008
I have setup LiteSpeed and I have got a problem with php and mysql.
It seems php can't connect to mysql. At every script which use mysql(like phpbb3, phpbb2 etc) I getting errors
SQL ERROR [ mysql4 ] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) [2002]
phpBB : Critical Error
Could not connect to the database
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Dec 7, 2007
MySQL Error : Lost connection to MySQL server during query
I get this error around 10 times a day and the MySQL server goes down
Here are my.cnf contents
Quote:
[mysqld]
safe-show-database
old_passwords
back_log = 75
skip-innodb
max_connections = 650
key_buffer = 48M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 3000
thread_cache_size = 128
wait_timeout = 90
connect_timeout = 10
tmp_table_size = 64M
max_heap_table_size = 64M
max_allowed_packet = 64M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 4
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 3M
query_cache_size = 48M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
[mysqld_safe]
nice = -5
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
[mysqlhotcopy]
interactive-timeout
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May 31, 2009
What is the standard number on maximum mysql connection on most shared host providers and which one give the highest number.
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Feb 21, 2008
I have developed a desktop system that uses MySQL data.
I want to use a host to access the data but my current provider only allows access to MySQL data via a web server.
Can anyone suggest a host that would provide direct connection to a MySQL database?
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Aug 15, 2008
how to allow user to remote mysql connection from his localhost ( in linux server with WHM )
my user wants to connect to the mysql from his localhost
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Jun 29, 2009
A have set up a cpanel with remote mysql server.
My demo config:
cpanel:
centos VPS with cpanel WHM (demo)
mysql:
debian VPS
the configuration is OK, it works.
We have got 200 customers, and we will to change to cpanel.
The MYSQL server is on a solaris zone. It is possible to make the remote connecting with it. I will import the 200 users MYSQL databases to cpanel, with privileges (user settings). The mail/web dir a will import manuali to cpanel server(copy-paste-setuser:group).
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Jan 10, 2007
I just got a new server and discoverd very strange problem. It happends 2-3 times every hour. When I try to access some webpage which connects to MySQL, I get page header and then page hangs for some 1 minute. After some 1 minute everything is back to normal. I can open several windows with different websites hosted on my server and the same problem is in all windows. At the same time I can access al websites without MySQL connections.
I have Fedora Core5
MySQL version 5.0.27
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Aug 8, 2008
I have 2 identical Fedora8 boxes with Apache 2.2.8, MySQL 5.0.45 and PhP 5.2.4. I use one as the Web+DB server (say box A), and the other (box B) just as the Web server connecting to the DB server on box A. I use this 2 machine configuration to test a LAMP based-Web application. I have a client program on other machines that can emulate a massive web workload to these 2 servers; it can emulate hundreds to thousands of users using the application simultaneously.
Before running the test, the connection to the DB server from both boxes seem fine. Using the mysql client program on either box A or B trying to connect to the DB, the connection goes through instantly. In the /etc/my.cnf file, I have max_connections=4096 and max_user_connections=4096. Note that the web app uses one single db user to connect to the db. To allow remote connection, I inserted one record into the user table of the mysql db whose the host field's value is '%' (allow connection from all remote hosts).
After running the test (which I found out that many requests sent to box B failed), mysql client program on box A is still able to connect to the db instantly; but the one on box B has a problem: it takes extremely long (5 - 10 minutes or even more) to establish the connection, it doesn't time out, just takes that long. I believe that's the cause for the failure of requests to box B.
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Jan 27, 2008
The main function of my dedicated server is the vBulletin forum that we run.
Ever since I had bastille firewall installed and configured on my server we have been getting regular vBulletin errors.
Everything runs pretty smoothly most of the time, we can carry lots of connections without any issues, server has plenty of free RAM and CPU is never overloaded even during peak hours. I have been told bastille firewall (iptables) is configured correctly, all ports that need to be open are open.
But about twice per day we have a MySQL "disconnect" that lasts about 30-60 seconds per incident. For example we will start getting the following message via e-mail, and it will amount to 20-30 e-mails like this during the 30-60 second incident. After that, the e-mails and problems will go away, until next time.
vBulletin Database Error!
mysql_connect(): Can't connect to MySQL server on 'sql.datacolony.com' (4)
/hsphere/local/home/site/site.com/forum/includes/class_core.php on line 274
MySQL Error :
Error Number :
Date : Saturday, January 26th 2008 @ 07:53:05 PM
Script : [url]
Referrer : [url]
IP Address : 92.3.190.54
Username :
Classname : vb_database
The server is running CentOS 4.6, PHP 4.4.7, MySQL 5.0.45. The vBulletin software has been patched to the latest version. The vBulletin people are not sure why this could be happening.
Well we never believed that the firewall was causing the issue BUT it only started happening on the day the new firewall was installed. So we tried stopping the firewall for a full week and the MySQL database errors stopped happening, completely. So I'm convinced the problem is the firewall blocking MySQL connections but I can't figure out why?
There are no entries in the MySQL .err logs pertaining to this. Can't figure this out, any help or ideas is appreciated since the people who installed the firewall are not sure either.
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Jul 22, 2009
ive got a site which auto creates subdomains and installs a script automaticly and inserts details into a mysql db. i have had some issues recent so have loads (talking 100s) of folders that are empty which i need to remove, and to remove the details of said folder from db also. any ideas how i can do this, using plesk control panel so removing the subdomain via plesk cli may be the best way in that respect but the db is external to plesk so that would not be edited
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Jul 6, 2009
The way Exim is setup on Cpanel/Centos is that it adds the origination IP and server IP address that the email is relayed through.
Because many RBL's flag Verizon and Comcast ISP IP's as spam sources; it causes my email relayed through my server to be rejected. Note: My server IP is not on any RBL for spam or abuse.
Is there a way to edit Exim to only use the server IP adddress that I relay through?
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Apr 14, 2009
How can remove eth0:12 (for ever) from ssh server?
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Jan 3, 2007
How do I remove a directory on a Linux server? I tried this but obviously was not empty... So I need to remove a full directory...
Quote:
rmdir ruby-1.8.5
rmdir: `ruby-1.8.5': Directory not empty
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Apr 7, 2008
I have ftp server (pure-ftp). with firewall.
i allowed 20 and 21 port in "CSF" firewall
now when i or our client connect to the server connection done.
and the they fire dir or ls command they will receive error
"425 Could not open data connection to port 2535: Connection timed out"
what is the problem.i have already allowed passive port 2500:3500 then why i received this types of error
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Feb 1, 2008
how can i remove list of blocking IPs on iptable on my server its over 100 IPs how can i remove it?
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May 1, 2008
I have two vps's. VPS1 is for hosting my sites, VPS to I purchashed to backup to.
I know I can use rsync but i'm confused at how to do this exactly.
Backup to remote server every other day.
Only do incremental backups.
Backup cpanel accounts
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Jan 25, 2015
How do I remove psa-proftpd on my Server? or make config by proftpd-basic?I have problems with Game Panel Easy-Wi..or is there a tutorial about this problem with Plesk and Easy-Wi?
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Jul 10, 2008
somehow plesk is not listing a domain record I added recently, that I have to remove. so, I can't select it and delete it through the interface.
is there a way to remove a dns record manually, perhaps from the command line?
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Mar 22, 2007
I am suspecting that we have spyware or virus on our server. How do I detect and remove it from windows 2003 server?
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