I can't connect to mysql on a remote server

Posted by eisaacson on Server Fault See other posts from Server Fault or by eisaacson
Published on 2013-11-04T19:25:55Z Indexed on 2013/11/04 21:57 UTC
Read the original article Hit count: 205

Filed under:
|
|
|

I'm trying to connect from an Ubuntu server to a RHEL6 server using mysql. I've tried telneting into the server as well as trying to connect with mysql. I've tried commenting out the bind-address but didn't have any success with that either. I don't get an error code or anything with telnet. It just fails after a minute or so. With mysql, I get this error code ERROR 2003 (HY000): Can't connect to MySQL server on 'SERVER_IP' (111). "SERVER_IP" is of course a placeholder where actual error gives that actual IP.

I've included my my.cnf as well as well as my iptables from the destination server.

On Destination Server...

my.cnf:

[mysqld]
bind-address=0.0.0.0
tmp_table_size=512M
max_heap_table_size=512M
sort_buffer_size=32M
read_buffer_size=128K
read_rnd_buffer_size=256K
table_cache=2048
key_buffer_size=512M
thread_cache_size=50
query_cache_type=1
query_cache_size=256M
query_cache_limit=24M
#query_alloc_block_size=128
#query_cache_min_res_unit=128
innodb_log_buffer_size=16M
innodb_flush_log_at_trx_commit=2
innodb_file_per_table
innodb_log_files_in_group=2
innodb_buffer_pool_size=32G
innodb_log_file_size=512M
innodb_additional_mem_pool_size=20M
join_buffer_size=128K

max_allowed_packet=100M
max_connections=256
wait_timeout=28800
interactive_timeout=3600

# modify isolation method for faster inserting.
# Do not uncomment the line below unless you understand what this does.
# transaction-isolation = READ-COMMITTED
# do not reverse lookup clients
skip-name-resolve

#long_query_time=6
#log_slow_queries=/var/log/mysqld-slow.log
#log_queries_not_using_indexes=On
#log_slow_admin_statements=On

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

#Added by Magento ECG
long_query_time=1
slow_query_log

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

iptables:

:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 225 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp -i eth1 --dport 11211 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT

sudo netstat -ntpl

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name
tcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      -
tcp        0      0 0.0.0.0:11211               0.0.0.0:*                   LISTEN      -
tcp        0      0 0.0.0.0:2123                0.0.0.0:*                   LISTEN      -
tcp        0      0 0.0.0.0:1581                0.0.0.0:*                   LISTEN      -
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      -
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      -
tcp        0      0 :::11211                    :::*                        LISTEN      -
tcp        0      0 :::22                       :::*                        LISTEN      -
tcp        0      0 :::225                      :::*                        LISTEN      -

© Server Fault or respective owner

Related posts about mysql

Related posts about iptables