How to connect from a Solaris 10 device to the console of a switch via USB adapter: Step 1: Plug in the USB adapter. In this example, I have a Prolific Technology Inc. USB-Serial Controller plugged into the console port of a Cisco 2900 XL switch. Step 2: Run dmesg to see if it was […]
Oracle has published a handy-dandy 6-page quick reference of Solaris 11 commands, covering ZFS, disks, zones, SMF, and networking. Grab the PDF from: solaris-11-cheat-sheet-1556378.pdf (application/pdf Object).
Looks interesting: A while ago, Dave Hoelzer did a nice video on how to use Windows PowerShell to hack domain user accounts. Basically, Dave leveraged PowerShell commands which any domain user can execute on a domain and receive either a positive and negative response based on the legitimacy of the username and password combination. This […]
MySQL Master / Slave replication is amazingly easy to set up. But what if you do everything by the book, log into the slave, and issue the climactic SLAVE START; command, followed by SHOW SLAVE STATUSG, and see this error? Last_IO_Errno: 1045 Last_IO_Error: error connecting to master ‘email@example.com:3306’ – retry-time: 60 retries: 86400 and your […]
I have a few CentOS 5.4 webservers to upgrade from httpd 2.2.3 to 2.2.17, but 2.2.17 isn’t available as an RPM from in any repository that I can find, so I’m making my own. Here’s how I did it. First, I built a new CentOS 5.4 x64 virtual machine on a spare 64-bit VMware vCenter server using […]
Chris Bloomfield has written an excellent, step-by-step guide for installing and configuring GNS3 and using it to build virtual network. GNS3 is actually the graphical front-end of Dynamips/Dynagen and allows you to drag-and-drop routers onto a stage, connect them up, run IOS on them, and save their configs, just as if you had your own […]
Cameron Sturdevant presents 10 tips to tune up Windows 7 VMs to run as virtual desktops. Optimizing Windows 7 for VDI – Windows from eWeek.
If you’ve now using or about to begin switching to Windows 7, Robert Shimonski has written a fairly in-depth overview of Windows 7’s security capabilities, and how to harden the OS, including manual tuning and the usage of security templates from Microsoft. Regardless of which version of OS you are running, this is a good […]
I ran into an interesting problem yesterday, and by “interesting” I mean really annoying and made me curse Microsoft repeatedly, again and again. An old home PC has been having video problems off and on for several years: It’d show an argyle-style print superimposed over whatever was on the screen. Rebooting would sometimes fix it, […]
I recently read a blog posting that denounced the use of sudo as insecure because of the following (briefly summed up and paraphrased) reasons: 1. The idea that not using the root account is wrong, using root for everything is fine. 2. That using sudo for everything provides a false sense of security over performing […]