DevanDevak DevanDevak - 3 months ago 13
MySQL Question

MySQLWorkbench :Cannot connect MySQL server

When i try to connect to the MySQL server i am incurring following error messages

Kindly let me know what is the problem with my MySQL server

dev@dev-ThinkPad-X1-Carbon-3rd:~$ ifconfig|grep "inet addr"
inet addr:127.0.0.1 Mask:255.0.0.0
inet addr:192.168.170.50 Bcast:192.168.170.255 Mask:255.255.255.0
dev@dev-ThinkPad-X1-Carbon-3rd:~$ mysql -ubeer -pbeer -h192.168.170.50
ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.170.50' (111)
dev@dev-ThinkPad-X1-Carbon-3rd:~$ mysql -ubeer -pbeer -h127.0.0.1
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
dev@dev-ThinkPad-X1-Carbon-3rd:~$ mysql -ubeer -pbeer -hlocalhost
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)


This is my.cnf file should i make some changes in my.cnf inorder to connect to MySQL server ?

[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock

# Here is entries for some specific programs
# The following values assume you have at least 32M ram

# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0

[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem



[mysqldump]
quick
quote-names
max_allowed_packet = 16M

[mysql]
#no-auto-rehash # faster start of mysql but no tab completition

[isamchk]
key_buffer = 16M

#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/

Answer

Is this a fresh installation? If so, please check if mysql-server installed instead of mysql-client

   sudo apt install mysql-server

Also, try changing this line in your my.cnf to:

   bind-address = 0.0.0.0

After that

   sudo service mysql restart

ANOTHER POSSIBILITY:

You may want to try finding the socket like this:

   sudo find / -type s

Once found, you can create a symlink to a temporary folder like this:

   sudo ln -s /path-to-socket/mysqld.sock /tmp/mysql.sock

After all this, you may want to reinstall MySQL Server and installing it again.

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