try this,

1. login as root

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vi /root/.bashrc

2. comment out this line

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#alias cp='cp -i'

3. logout and login again

This tutorial shows you step by step to create a rsync server and client server.

First of all, you must have rsync installed. For fedora, rsync should be included by default. If you don’t have it, run

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yum install rsync

Setup rsync server

Create rsync configuration file:

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cd /etc
mkdir rsyncd
cd rsyncd
touch rsyncd.conf
touch rsyncd.motd
touch rsyncd.user
chmod 600 rsyncd.user

edit rsyncd.user file:
vi /etc/rsyncd.user

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my_rsync_user_1:user_1_password

edit rsyncd.conf file:

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pid file=/var/run/rsyncd.pid
port=873
uid=root
gid=root
use chroot=yes
read only=yes
 
# limit access to LANS
hosts allow=192.168.2.0/255.255.255.0   #default, listen to lan server
host deny=*
 
max connections=5
motd file=/etc/rsyncd/rsyncd.motd
 
log format=%t%a%m%f%b
syslog facility=local3
timeout=300
 
[profile_1]          #profile name
path = /path/to/backup/directory
ignore errors
read only = false
list = false
hosts allow = 66.66.66.66   #listen to client server which use public ip
hosts deny = 0.0.0.0/32
auth users = my_rsync_user_1
secrets file = /etc/rsyncd/rsyncd.user
 
#[profile_1]          #another profile name
#path = /path/to/backup/directory/2
#ignore errors
#read only = false
#list = false
#hosts allow = 88.88.88.88   #listen to client server which use public ip
#hosts deny = 0.0.0.0/32
#auth users = my_rsync_user_2
#secrets file = /etc/rsyncd/rsyncd.user

Next, create init start up script
vi /etc/init.d/rsyncd

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#!/bin/sh
#
# Startup script for rsyncd daemon
#
# chkconfig: 35 90 10
# description: Server data for sync to other server
# processname rsync
 
# Source function library
. /etc/rc.d/init.d/functions
 
prog=rsync
conf=/etc/rsyncd/rsyncd.conf
 
case "$1" in
    start)
        echo -n "Starting rsync daemon: "
        daemon /usr/bin/$prog --daemon --config=$conf
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && touch /var/lock/subsys/$prog
        ;;
    stop)
        echo -n "Shutting down $prog: "
        killproc -d 60 $prog
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f /var/lock/subsys/$prog
        ;;
    status)
        status $prog
        ;;
    restart)
        $0 stop
        $0 start
        ;;
    *)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
esac
 
exit 0

make /etc/init.d/rsyncd executable, and register this service

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chmod +x /etc/init.d/rsyncd 
/sbin/chkconfig --add rsyncd
/sbin/service rsyncd start

Setup rsync client

first, of course you must have rsync installed on client server

make rsync password file

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cd /etc
mkdir rsync
cd rsync
touch rsync.pwd
chmod 600 rsync.pwd

vi /etc/rsync/rsync.pwd

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user_1_password

execute this command to start synchronize file to server

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rsync -vrtLogp --progress /path/to/directory/to/be/backup/* my_rsync_user_1@[SERVER_IP]::profile_1 --password-file=/etc/rsync/rsync.pwd

where [SERVER_IP] is rsync server IP

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#include <iostream>
 
int main()
{
  std::cout << "Hello world, compiled with g++ on linux" << std::endl;
  return 0;
}

compile this and move to your secured tmp partition and execute it. If you get a permission error, tmp partition is mounted correctly with noexec.

Install ncftp client

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yum install ncftp

Start downloading

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ncftpget -R -v -u "username"  -p "userpassword" ftp.someserver.com /home/save_at_here /downloads

where,

• -R : download all subdirectories and files (recusive)
• -v : verbose, show download activity
• -u : ftp server user name
• -p : ftp server user login (if skipped, will prompt to ask password)
• ftp.someserver.com : ftp server domain or IP
• /home/save_at_here : all downloaded file will save in this directory
• /downloads : remote ftp server directory you wish to copy

You may imagine that mysql-zrm is a strong management tool of mysql, mysqldump and mysqlhotcopy.  The key benifits for me are : I can backup all databases at once with my databases are automatically created if a new client comes; mysql-zrm is able to save compressed data to different folder, so I can keep saved data up to seven days (you may do it one month or maybe one year); It also has a scheduler to do your task every certain time you want.

Installation:

1. login to your backup server

2. Download rpm from http://www.zmanda.com/download-zrm.php

3. If you don’t have Perl installed, run ” yum install perl ”

4. run ” rpm -ivh MySQL-zrm-2.0-1.noarch.rpm ”

5. “  vi /etc/mysql-zrm/mysql-zrm.conf ” update following parameters in file

backup-mode=logical [ ideally raw for myisam engine and logical for innodb. but I recommend using logical for default. Because when I use raw for default value, and if there is table with innodb engine exist, zrm will prompt me password for mysql@(server_ip) which have no idea about linux mysql user login ]

destination=/home/mybackup_dir  [ specify where backup files will be stored]

Start backup:

mysql-zrm –action backup –host xxx.xxx.xxx.xxx –user aabb –password ccdd  –backup-set abcd

where
–host is remote server IP for MySQL
–user is remote MySQL server  user login
–password is remote MySQL server  user login password
–backup-set is backup folder name

Result:

after running the command, you will get backup file in the path look like this

/home/mybackup_dir/abcd/20081128195236

Restore database to local server:

/usr/bin/mysql-zrm-restore –user=1122 –password=2233 –source-directory=/home/mybackup_dir/abcd/20081128195236
check out your backup server MySQL database.

1. using top command

After executing top command, press “Shift” + “>” and look at “RES” column. The RES column is the most reliable indicator of the real memory usage of that process.

top result

2. ps axu –sort:rss

show memory usage sorted by lowest memory usages first.

A general Apache which serves static html page should consume less than 10MB per process.
For heavily serving PHP pages, in my case it uses 18MB-39MB each httpd process.

mysqld has a memory usage of 120MB in my case. I can tell that the query cache settings worked as planned.

ps aux –sort -vsz | head -25
Top memory hogs

uname -a

• Check Linux version

cat /proc/version

• Check Redhat based Linux version

cat /etc/redhat-release

• Check PHP version on Linux server

php -v

• Check mysql version on linux server

mysql -V

• Check apache version on linux server

httpd -v

There is a SQL injection vulnerable security hole exists on Plesk 8.x.x. Yes, it’s even on 8.2.0, which is the latest stable version.

It’s /usr/local/psa/admin/plib/class.Session.php.

Here’s the fix.