March 2011

How fast Redhat and Fedora fix bugs

For long time now, I'm reporting bugs to the open source community. A lot of time, I have also submitted patches.

For the first time, one bug has been fixed in the day ! The test case was easy to reproduce and the fix was already know, this helped a lot.

VMware ESXi backup speed: compare NFS, FTP, RSYNC and SSH

Here are some numbers you can take as reference when backing up your VMware ESX(i) using MKSbackup or ghettoVCB.sh. MKSBackup use ghettoVCB.sh script to backup VMware VM to disk or to NFS shares. MKSBackup can upload or download your backed up disks using FTP or SSH together with the running backup as soon as the first disk is done.

The struggle against SPAM is a political problem more than a technical one

I thing SPAM is more a political problem than a technical one !
A lot of smart technical solutions exist for a long time now but SPAM remains a problem.
Main mail service providers like Google and Hotmail could choose and impose new rules in mail exchange to the community, by rejecting mails from servers not following them. Then I thing SPAM would be reduced to the minimum.

My solution below is deliberately superficial because a real solution would require long debate of mail gurus to avoid any weakness. I'm only one and maybe not a guru :-)

Free VMware backup and monitoring tools

MKSBackup

MKSbackup front-end, improve ghettoVCB.sh usability, by running the script from a friendly Windows or Linux host and by sending an email report. An installer help the user to configure a sheduled job. Thank to William Lam for its excellent ghettoVCB.sh.

Run rsync in server mode on VMware ESXi 4.0

This procedure has been tested on ESXi 4.0 only

First I was unable to upload files through rsync running in server mode !!! Only downloads are working ! rsync can also be started using a remote shell like ssh using -e option. Used this way, rsync can be used to download and upload. Anyway the use of the ssh layer and its encryption increase CPU load.