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Install GNU/Linux without any CD, floppy, USB-key, nor any other removable media I have a server running CentOS 4 with internet on it. This server is without any CD Drive, floppy Drive, USB-key, nor any other removable media and its Remote server. How do i install CentOS 5 on it? I have searched in various forums, posted in various forums. After a long hour I have came to solution. I am writting here what excataly I have done. Since, I have net connection on current system, 1. I have downloaded ISO image of centos 5 (1 CD only) 2. mkdir /mnt/tmp 3. mount -o loop CentOS-5.0-x86_64-bin-1of7.iso /mnt/tmp 4. cp -a /mnt/tmp/isolinux/vmlinuz /boot/vmlinuzMy 5. cp -a /mnt/tmp/isolinux/initrd.img /boot/initrdMy.img 6. umount /mnt/tmp 7. Add entry to your /etc/grub.conf title Fedora Core 2 Installation root (hd0,0) kernel /boot/vmlinuzMy initrd /boot/initrdMy.img 8. Reboot system 9. Now your is booted and ready for new installation. 10. Select installation method you want (FTP, HTTP or NFS prob

Security of the server always come first , especially web server which access by the worldwide and hackers always keep eyes on those server's. So, its good if you have system which automatically send a email notification via email whenever someone logs in as root on your system. To configure the automatic email alert notification to a email address on each incident of root log on on the server, use the following guide. Login to the server via SSH using as root ID. Ensure that you’re at home directory of root. The open up the .bash_profile for editing using pico or vi by typing one of the following commands at linux command shell: pico .bash_profilevi .bash_profile Scroll down to the end of the file and add the following line: echo 'ALERT - Root Shell Access on:' `date` `who` mail -s "Alert: Root Access from `who cut -d"(" -f2 cut -d")" -f1`" user@example.com Replace user@email.com with the actual email account address that you want to the root