Latest articles under Linux category

Add multiple secondary IP addresses on CentOS

Adding a single secondary IP on CentOS is fairly straight forward. Adding a single secondary IP Assuming that you want the secondary IP on your first ethernet card (eth0), create a file /etc/sysconfig/network-scripts/ifcfg-eth0:1 with the following content: user@laptop:~$ cat /etc/sysconfig/network-scripts/ifcfg-eth0:1 DEVICE=eth0:1 ONBOOT=yes BOOTPROTO=static IPADDR=10.10.10.100 Optionally, you can also set NM_CONTROLLED to yes if you’d like […]

Posted on August 26th, 2014 under Linux, System Admin  •  No Comments

Configuring Postfix + Spamasassin + Amavis as front-end Mail Transport Agent (MTA) to MS Exchange 2010

Introduction The last time my client uses Windows Small Business Server, I had them bought Trend Micro Client Server Messaging Security for Small and Medium Business. It was quite costly; around $1200 for 15 users includes 2 years maintenance. It made sense then, because his settings makes it easy to manage and maintain and virus […]

Posted on April 15th, 2013 under Linux, System Admin, Windows  •  6 Comments

Ubuntu + Virtualization + Windows on HP TX1499US Laptop

I have HP TX1499US that I purchased off Home Depot a while back. I thought it was a very good deal for a tablet PC, with touch screen, with smaller screen (12.1"), with the stuff it comes with. One thing that I’m not really excited about is the OS it came with: Windows Vista. I […]

Posted on January 25th, 2009 under Linux, Virtualization, Windows  •  No Comments

Installing Ubuntu Linux on HP TX1499US

I previously installed Ubuntu 7.10 on my other laptop (HP DV6305US) and I had to pass kernel argument noapic during boot, otherwise Linux will hang on booting. Now that Ubuntu 8.10 is out and I have new tablet PC style HP TX1499US, I thought I’d install Ubuntu 8.10 on it. As it turns out, I […]

Posted on January 23rd, 2009 under Linux  •  No Comments