centos

adduser
http://www.jdragon.org/2006/08/creating_a_new_.html

service vsftpd start

http://james.apache.org/server/james_and_sendmail.html

http://forums.mysql.com/read.php?11,153632,153632
yum install mysql-server

http://www.cyberciti.biz/faq/mysql-change-root-password/
setting mysql root password 1st time.
mysqladmin -u root password NEWPASSWORD

shutdown mysql
mysqladmin -u root -p shutdown
start mysql
mysqld_safe &

show status where variable_name like "max%";
show variables like 'max_connections';
SHOW PROCESSLIST;
SHOW STATUS;
SHOW VARIABLES;

set GLOBAL max_connections=500;

james delete mails in /home/sairads/software/james-2.3.1/apps/james/var/mail/address-error
for x in *; do rm -f $x; done

file count
ll -1A|wc -l

http://infoweb.ntnu.no/developement+and+programming/tools/mysqldump.html
 mysqldump -u mysql_username -p name_of_database > databasefile.sql
        
mysql -u root -p informer < db.sql


export JAVA_HOME=/usr

select last_accessed from Agent where agent='359502013202900'

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection,  message from server: "Too many connections"


export CLASSPATH=/home/avirads/software/informer/lib/mysql.jar:/home/avirads/software/informer/lib/commons-net-1.4.1.jar:/home/avirads/software/informer/lib/mail-1.4.jar:/home/avirads/software/informer/lib/mailet-2.3.jar:/home/avirads/software/informer/lib/mailet-api-2.3.jar:.:
cd /home/avirads/software/informer/src/james
javac com/moblify/informer/*.java
jar -cvf googler.jar *
cp googler.jar /home/avirads/software/james-2.3.1/apps/james/SAR-INF/lib/


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