Host For Remote MySQL Connection

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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Allow User To Remote Mysql Connection

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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Cpanel Mysql Remote Connection USE EXIST DB

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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Failcnt Error #422: Cannot Initialize Connection To Remote Host

Dec 23, 2008

my site is working fine for somedays and suddenly its stoped and hanged and also my PPP is not working , and file manager in PPP its give me this error
VZAgent returns error #422: "Cannot initialize connection to remote host"
and the suppord admin said I have problem in failcnt

[root@server ~]# cat /proc/user_beancounters
Version: 2.5
uid resource held maxheld barrier limit failcnt
1592: kmemsize 18353610 18355203 65536000 65536000 0
lockedpages 0 0 256 256 0
privvmpages 166455 171964 262144 262144 119810
shmpages 4885 4885 131072 131072 0
dummy 0 0 2147483647 2147483647 0
numproc 150 150 600 600 0
physpages 101554 108439 0 2147483647 0
vmguarpages 0 0 196608 196608 0
oomguarpages 101554 108439 196608 196608 0
numtcpsock 141 141 600 600 0
numflock 7 8 300 330 0
numpty 1 1 16 16 0
numsiginfo 0 1 384 384 0
tcpsndbuf 2350036 2625064 32768000 36864000 0
tcprcvbuf 2310144 2129920 32768000 36864000 0
othersockbuf 32976 573000 32768000 36864000 0
dgramrcvbuf 0 4284 1024000 1024000 0
numothersock 32 32 600 600 0
dcachesize 642510 653661 8192000 8192000 0
numfile 2636 2663 20000 20000 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 228 228 700 700 0

I want to know what is my ram site and why that all errors?

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MySQL Remote Connection Problem After A Heavy Usage

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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Max MySQL Connection On Shared Host

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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Remote Mysql Host ...

Apr 24, 2008

but first, is it a good idea to have mysql on a remote server? let's say my app makes about 400 reqs per second.

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Oct 27, 2009

I signed up for a windows VPS.

The directions I recieved were "Please use remote desktop to connect to your server."

So I entered the ip address into the remote desktop connection window and it doesn't connect. Where do I go from here? I searched and can't find any relevant info.

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Aug 13, 2008

how to allow users to remote mysql from localhost ( in linux server with WHM )

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Remote Connection To Domain Fails

Jun 17, 2009

I have an Ubuntu 8.04 server with 2 nerwork cards eth0 and eth1. I am using only eth0. The server is behind a 2-wire router. I have setup the router with the public IP addresses.

On the server I have setup an IP alias on eth0 as eth0:0. I have 3 domains which i will call foo1.com foo2.com and foo3.com. The server pc is assigned to a static public address on the router as 217.xx.xx.100 this same ip also used to setup the virtual host for foo1.com

Quote:

<VirtualHost 217.xx.xx.100:80>
ServerName foo1.com
ServerAlias www.foo1.com
ServerAdmin me@foo1.com
DocumentRoot /var/www/foo1/
</VirtualHost>

I have also setup and applied an ssl certificate to 217.xx.xx.100:443.

Now eth0:0 is assigned to 217.xx.xx.101 and used as below

Quote:

<VirtualHost 217.xx.xx.101:80>
ServerName foo2.com
ServerAlias www.foo2.com
ServerAdmin me@foo2.com
DocumentRoot /var/www/foo2/
</VirtualHost>

<VirtualHost 217.xx.xx.101:80>
ServerName foo3.com
ServerAlias www.foo3.com
ServerAdmin me@foo3.com
DocumentRoot /var/www/foo3/
</VirtualHost>

When I am on the router I can access all the domains via the browser and can also get FTP, and ssh connection to the server. However when I leave the range of the server and connect to the net via another router, I loose ftp and ssh access to the server as well as not able to browse www.foo1.com. However www.foo2.com and www.foo3.com I can browse.

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Remote Desktop Connection For Linux

Apr 25, 2008

My hoster told me to use PuTTY, a terminal, to install something called a vnc. I tried to install it ,but gets rejected everytime I connect.(I was using realvnc and connecting through a tunnel) Is there another way to get to the GUI or something like that?

I am using Vista and trying to connect to Linux (Debian)

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Windows And Linux Remote Desktop Connection

May 25, 2009

I know we can get remote Desktop connection only on those servers based on Windows 2003 OS or Windows 2008 OS.

But what about Linux? Can I have such remote desktop connection on CentOS 5?

Another question is, what is nxclient?
[url]

Im bit confused. Can I get remote desktop connection of Linux OS ( CentOS ) on my Windows XP by using this software?

[url]

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Spam/phishing Emails By Remote Connection (hacked)

Apr 23, 2009

One day, you noticed that someone remotely connectted your computer and an application sends spam/phishing emails bu using your IP. What do you do?

Of course, I stopped the program and blocked remote connection for a while and changed my password... I any way, i have to connect my computer remotely... What do you advice?

By the way, i have more than 1000 email accounts on my computer. Hacker left me a gift, but I don't need them))

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Dec 17, 2007

I am trying to access my server remotely using Windows' Remote Desktop Connection. It functions perfectly, but it does not go full screen because my local screen res is 1680x1050 ...

Does anyone know any other remote desktop applications which work better in this way?

I know I could just change the local res settings but it is a bit of a nuisance and looks really weird if I set it to something non-wide-screen...

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Ping Doesnt Work Until Remote Desktop Connection Is Made

Nov 14, 2007

I have a remote XP PC: 172.16.1.5 OpenVPN connection with route added for 192.168.2.0/24 to go via the VPN

Now on the other end the network consists of:

I have a OpenVPN server inside the lan on 192.168.2.245
Its default gateway is 192.168.2.1

I have 3 Windows Servers, 192.168.2.246, 247 and 248. All gateways are set to 192.168.2.1.

I have a ethernet router on the network, 192.168.2.1, it has a route added for 192.168.0.0/16 to go via 192.168.2.245, and route added for 172.16.0.0/24 to go via 192.168.2.245 also). the 192.168.0.0/16 is incase any other LANs are connected at a later date, if computers saw any packets not on the the 192.168.2.x subnet they would be routed to the default gateway which would then pass them to the OpenVPN router.

The trouble is, i can remotely connect and ping to the OpenVPN router fine and also the ethernet router, however when i ping any of the Windows boxes it times out. But i can open up Remote Desktop and connect to the windows box without problem, infact if i am running 'ping 192.168.2.246 -t' it will suddenly come alive but only after the RDP connection is made.

Is this something funny with the routing? I want to keep the OpenVPN server internal to the network and i appreciate it is hitting the ethernet router then being passed to the OpenVPN but something is weird as it fires up RDP fine but not ping. No firewalls are enabled on any of the boxes. If i log into ssh on the OpenVPN router or ethernet router i can ping from that to the windows boxes fine.

Its as if a ICMP redirect is issued, and all is well after the 1st connection. Not too sure but could anyone be kind enough to enlighten me?

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MySQL Connection

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 Im trying to access the database from another server that Ive 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.

Ive read the H-Sphere documentation about an option to enable remote access to the mysql server which I cant find anymore under our H-Sphere 2.5 Patch 8.

Ive 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 Ive run the command grant all . Command for that database, it still doesnt 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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MySQL Connection Fluctuates

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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Zymic.com MySQL Connection

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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Aug 10, 2008

I've seen this mentioned before, that you can run SQL on a separate server and lot of people do it for SQL heavy applications.

Only thing I wonder, how well does it work bandwidth wise? Is there a noticeable slowdown in query speed? What about bandwidth cost, does it use a lot, enough to run over a typical dedicated server monthly limit?

Also what about security, are queries/username/password sent out in clear text?

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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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Nov 17, 2008

Does any body know? please show me

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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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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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Bastille Firewall Causing Mysql Connection Errors

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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May 6, 2009

I have a Ubuntu Lamp server setup in my building which is used for development purposes.

So I also have phpmyadmin setup and am using a Mysql Query browser and Mysql Administrator desktop programs to administor the database on the server. However I am not able to connect to the server from my desktop. I am able to login to my myphpadmin but not able to login via the Mysql Query Browser program.

Hopwing someone can help. I have read about port forwarding and also read a post about editing the my.cnf file on the server and changing the Bind-Address= 127.0.0.1 to the actual hostname but before I start editing the actual configuration files on the server I want to see if their is another way as I am worried that if I change the me.conf file that the phpmyadmin may stop working?

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