Samba start / restart error: smbd_open_once_socket: open_socket_in: Addr

November 19, 2012 - 7:23pm - by admin

Once I have got this problem with samba in Oracle Linux 6 (the same I could reproduce in RedHat 6 as well):

On start or restart of smb service var/log/samba/log.smbd reports:

smbd/server.c:501(smbd_open_one_socket) smbd_open_once_socket: open_socket_in: Address already in use

The solution was:

sysctl net.ipv6.bindv6only=1

as it looks like the problem happens on systems which IPv6 support where :: also listens for IPv4 connections. So the bind to 0.0.0.0 fails.

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Mac OS, MySQL: No such file or directory (trying to connect via unix:///

July 18, 2012 - 6:51pm - by admin

Error on attempt to connect locally to MySQL server DB with PHP on MacOS X Lion 10.7:

No such file or directory (trying to connect via unix:///var/mysql/mysql.sock)

Solution 1:

instead of localhost use 127.0.0.1:

mysql_connect ('127.0.0.1', $user, $password);

Solution 2:

In /etc/php.ini change

pdo_mysql.default_socket = /var/mysql/mysql.sock

mysql.default_socket = /var/mysql/mysql.sock

mysqli.default_socket = /var/mysql/mysql.sock

to

pdo_mysql.default_socket = /tmp/mysql.sock

mysql.default_socket = /tmp/mysql.sock

mysqli.default_socket = /tmp/mysql.sock

Do not forget to restart Apache after update :-)

FYI: If no /etc/php.ini found just copy /etc/php.ini.default to /etc/php.ini

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MySQL: ERROR 2006 (HY000) at line: ### MySQL server has gone away

July 18, 2012 - 6:11pm - by admin

In case of MySQL error 2006 (HY000) at line: ### MySQL server has gone away which may occur while restoring a big DB dump just add (or increase, if exists) max_allowed_packet parameter of MySQL config (usually in /etc/my.cnf).

For example:

[mysqld]

max_allowed_packet=128M

And do not forget to restart MySQL server :-)

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Uncaught exception 'Zend_Mail_Transport_Exception' with message 'Unable

November 24, 2011 - 8:17am - by admin

Error:

Fatal error: Uncaught exception 'Zend_Mail_Transport_Exception' with message 'Unable to send mail. ' in /.........../Zend/Zend/Mail/Transport/Sendmail.php:137

Postfix is running, PHP can connect to Postfix.

We have got In Apache error_log:

postdrop: warning: uid=48: File too large

FIX:

The default max message size for Postfix is 10240000 bytes. Thus we do:

% /usr/sbin/postconf -e message_size_limit=XXXXXXXXXXX

where XXXXXXXXXX is the new limit.

And then restart Postfix.

FYI: Related issues:

The the default value for a mailbox size according to Postfix is 51200000 bytes. It may be changed like this:

% postconf -e mailbox_size_limit=0

And then restart Postfix.

The settings for all the size related parameters (in main.cf) can be listed like this:

# postconf -d | grep size

Sample output:

berkeley_db_create_buffer_size = 16777216

berkeley_db_read_buffer_size = 131072

body_checks_size_limit = 51200

bounce_size_limit = 50000

header_size_limit = 102400

mailbox_size_limit = 51200000

message_size_limit = 10240000

Voila !

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