Roderick Derks

Disable IPv6 Networking Support to decrease unneeded system load if you're not going to use it anyway.

Edit /etc/sysconfig/network. (a restart of the network service is required)
[root@server ~]$ vi /etc/sysconfig/network
Change:
NETWORKING_IPV6=yes
To:
NETWORKING_IPV6=no

Disable IPv6 Protocol Stack for Kernel
Edit /etc/modprobe.conf.
[root@server ~]# vi /etc/modprobe.conf

Add the following 2 lines: (a restart of the network service is required)
alias net-pf-10 off
alias ipv6 off

Stop and disable IPv6 Firewall
[root@server ~]# /etc/init.d/ip6tables stop (or service ip6tables stop)
Flushing firewall rules:                                   [  OK  ]
Setting chains to policy ACCEPT: filter                    [  OK  ]
Unloading ip6tables modules:                               [  OK  ]

[root@server ~]# chkconfig –level 35 ip6tables off

Here is the link you can use in the Google webmaster tool to add a sitemap created by SEF Service Map:

http://<your site>/index2.php?option=com_sefservicemap&task=googlemap

Host system is linux FC6 and my guest system is also FC6 using VMWare server. But this also could be a Debian host and a WXP guest system.

I am using the bridged networking option and everything works great except for one very annoying thing.
Network transfers moving files from host->guest over the network is incredibly slow something <1KB/s.
This is independant of protocol, I’ve tried scp, ftp, and samba.
Transfering files using the above protocols from the guest->host is fine getting something in the order of 4000-7000 KB/s.

There is a solution to this problem… 

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Add this script to you HTML webpage:

<!– START 08. HOME – CONTENT – Countdown (1291)–>
 

<script language="javascript">

        var nowDate = new Date();
        var eventDate = new Date("Dec 31 2006 23:59:59 +0100");
        
        function update()
        {
            nowDate = new Date();
    
            secondstogo=(eventDate-nowDate)/1000;
            days = secondstogo/(24*60*60);
            days = Math.floor(days);
    
            secondstogo=secondstogo-(days*24*60*60);
            hours = Math.floor(secondstogo/(60*60));
            
            secondstogo=secondstogo-(hours*60*60);
            minutes = Math.floor(secondstogo/(60));
    
            secondstogo=secondstogo-(minutes*60);
            seconds = Math.floor(secondstogo);
    
            if (seconds < 10)
                seconds = "0" + seconds;
            
            newclock = days + " dagen<br/>" + hours + " uren<br/>" + minutes + " minuten<br/>" + seconds + " seconden<br/>";
            
            writit(newclock,'countDownInfo');
            ID=window.setTimeout("update();",1000);
        }
        
        function writit(text,id)
        {
            document.getElementById(id).innerHTML=text;
        }

        ID=window.setTimeout("update();", 1000);
</script>

<div id="countdown">
    <h1>COUNTDOWN</h1>
    <div>
        <img style="margin-left:10px; border:0px; float:left;" src="http://top2000.radio2.nl/data/media/db_images/original/42308.gif">
        <div id="countDownInfo"></div>
        <div style="clear:left;"></div>
    </div>
</div>
<!– STOP 08. HOME – CONTENT – Countdown (1291)–>

To enable the PHP extensions GD and DOMXML to get the Joomla Expose component to work properly I had to reconfigure the default FC6 PHP configuration.

To do this just execute the following commands:

# yum -y install php_gd php_domxml
# service httpd stop
# service httpd start

Pretty simple. You can download the Joomla Expose components here .

1. Boot the system
2. When it asks for a key interuption for interupting the boot sequence press any key.
3. This will give you ISL prompt.
4. Do a search for the devices. i.e SEA command.
5. Check which is a tape device (it will be mentioned as a Sequencial Device).
6. On the ISL Prompt give Command : BO (Tape device Name i.e. P1 , P2 etc.).
7. Press N for IPL.
8. It will boot from the tape.
9. Here you can select interactive or non-interactive recovery (this depends on if you have given options while creating the backup).  For a restore I used the non-interactive mode.

A menu appears. Choose "Install HP-UX". This will recover your system. If you are restoring to the same system you made the ignite tape from, you can use the non-interactive recovery. If you are restoring to a different system, it is best to use the advanced installation.
 

# mkdir cd /tmp/restore_etc
# cd /tmp/restore_etc
# mt -f /dev/rmt/0mn rew (rewind ignite tape)
# mt -f /dev/rmt/0mn fsf 1 (fast forward to right postion on tape)
# tar xvf /dev/rmt/0m etc (restore directory)

NO slash for "etc" -> not /etc

# cp -R -p -i . /etc/
Don't overwrite files by pressing the N key when asked

Another option
# tar xvf /dev/rmt/0m etc/aliases (restore single file)
NO slash for "etc"

Here is a script that I use to create backups of all of my VM's. There has been some evolution over time so I posted three versions. You can run these script after some adjustments on your VMware host server. For every VM the same routine is followed: stop, copy, start. To complete the backup procedure the backup that just was created is copied to a remote VMware server. So in case of a hardware failure you can start your VM's again on the remote machine. Be aware that this is not a hot backup, the VM's will be switched off.

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From time to time you want to write scripts that will allow you to copy files to or execute commands on remote systems. You want to execute these scripts without being prompted for a password and you don't want to store the password in the script file. To achieve this we can use ssh encryption keys. read more