Method 1:
$ mail -s “Subject: Test email from linux server” info@test.com
Press the “Return” key
Enter the body part of the email
Press ctrl + D
Enter a CC email if you would like (e.g. info2@test.com)
Press ctrl + D again
Then check the mail box to see if the mail has arrived.
Many email servers depend on Reverse DNS in order to identify if the mail is legit or spam. For the Reverse DNS to work correctly, two points need to be addressed
a) Look for IP address of the mail server should return its name. PTR record should be set for this
b) Reverse look on the name should return back the IP address
For example,
$ dig -x 217.83.122.34
;; ANSWER SECTION:
34.122.83.217.in-addr.arpa. 66372 IN PTR mail.example.com.
$ dig mail.example.com
;; ANSWER SECTION:
mail.example.com. 900 IN A 217.83.122.34
Check the IP address that is getting resolved matches the name that is getting returned back.
First Check PHP version that is currently installed
$ php -version
Check Linux Version
$ cat /etc/*-release (or redhat-release)
Create a repo file with the content given below. As you can note, we are looking for package upgrade related to php only.
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The above error message most likely occurs when users change password in one environment (via command line or phpmyadmin) and do not see the changes reflect in other OR if they have forgotten the password that is being set for the environment in question.
Following command should help you set/change MySQL password
$ mysql -u root -p
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In linux, following commands are used to start/stop/restart mysql
$/etc/init.d/mysqld start
$/etc/init.d/mysqld restart
$/etc/init.d/mysqld stop
In windows, mysql runs as a service.
C:> net stop mysql
C:> net start mysql
When transitioning MySQL database from Windows to Linux, users often encounter issues related to case-sensitiveness. Windows is case-insensitive and Linux is case-sensitive.
In such scenarios when a database call is made after the application migration happens, users often run into errors which can send them in circles between the migration servers.
Solution to this problem is to add a single line of text under my.cnf (MySQL configuration file) under [mysqld]
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A JAVA program file can only contain one public java class and this should be named the same as the java file itself.
There can be any number of classes with / without other modifiers.
Classes without any modifiers will get compiled even if the name of the class does not match the name of the java program file.
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When new fileds are created as variable characters they get stored as latin1_swedish_ci as default. To change the default collation users will have to manually select the collation of their choice from the mysql admin interface such as in the case of phpmyadmin or will have to denote it in sql queries.
To make a specific collation as the default, other option to give mysql an indication of it by having the needed collation name in my.cnf (mysql configuration) as shown below
Edit my.cnf:
[mysqld]
collation_server=latin1_general_ci
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