January 6, 2009 8:33 PM
Posted by: Xjlittle
centos,
NAS,
openfiler,
red hat,
rpath,
virtual machine,
xenIf you've ever tried to install the Openfiler NAS frontend as a Xen virtual host you probably found that 1) it was not as straightforward as it would seem, 2)getting the right combination of information that is on the web correct in the openfiler config file is difficult and 3)documentation at the...
December 28, 2008 3:33 PM
Posted by: Xjlittle
/boot,
bios,
external hard drive,
LinuxI received a Western Digital 1TB external hard drive for my linux server on Christmas. Way cool! Now I could set up a linux NAS filer and backups for the server and other Linux and Windows machines that we have.
While the linux server was running I plugged the external hard drive into the USB...
December 13, 2008 10:59 PM
Posted by: Xjlittle
centos,
dom0,
domU,
Firewalls,
iptables,
Linux,
pciback,
red hat,
xenIn my last column we set up a physical NIC in our Xen domU to expose it to the internet and setup our iptables firewall.
At this point you should have 2 interfaces in your domU. One should be facing the internet and have an IP Address assigned from your ISP. The other should be a typical Xen...
December 12, 2008 7:56 PM
Posted by: Xjlittle
centos,
dom0,
domU,
domU firewall,
pciback,
red hat,
Virtualization,
xen,
xen firewallRecently I brought up a new Xen server that needed an iptables firewall on a domU. My first thought had been to setup the firewall on dom0 but that turned out to be a difficult task because of all of the virtual interfaces that are created. Red Hat/Centos also installs a set of rules by default...
December 9, 2008 12:47 AM
Posted by: Xjlittle
centos,
linux security,
red hat,
selinux,
ubuntuThe other day after installing Ubuntu on one of my test machines I noticed that there was an ls -Z command which shows various selinux information about files and directories.
Running this command however gave some strange output, primarily ? marks. I thought this was a little strange but had...
December 4, 2008 6:41 PM
Posted by: Xjlittle
inventory,
inventory tag,
Lotus Domino,
opensolaris,
red hat,
solaris,
sun,
suse,
tag your gear,
windowsSun has a unique application on their web site called Sun Inventory that will track hardware, software and operating systems. It is unique in that it is, more or less, a cloud application. You can access your inventory anywhere that you have internet access.
The Sun Inventory application...
November 30, 2008 11:02 PM
Posted by: Xjlittle
install to usb,
Linux,
linux installer,
live cd,
livecd,
UNetbootin,
windows,
windows installerI ran across UNetbootin after pulling out my old tablet pc and found the Windows OS full of viruses, malware and whatever someone could put on there.
After looking around for the most viable distribution to install on a tablet pc I landed on...
November 21, 2008 8:28 PM
Posted by: Xjlittle
centos,
getsebool,
Linux,
selinux,
selinux apache,
selinux httpd,
selinux mysql,
selinux nfs,
setseboolI am bringing up a new Virtual Host with VMs of MySQL, music-repo and a webserver. All of these are on CentOS with SELinux enabled. No, I'm not a glutton for punishments using SELinux for all of these machines that are interconnected to each other. I believe the time is coming when organizations...
November 17, 2008 6:32 PM
Posted by: Xjlittle
centos 5,
dom0,
domU,
domU firewall,
Firewalls,
iptables,
pciback,
xenAs discussed in an earlier post you must first hide your NIC from dom0 to set up your iptables firewall on your domU. After you have successfully hidden the NIC from dom0 then we can proceed to our domU firewall setup.
You must first decide which domU that you are going to use for a firewall. ...
