In Unix it is sometimes useful to find which package owns a particular file. For example you might what to find out what a file or executable is for. I will keep updating this list for each flavor of Unix and Linux. Debian/Ubuntu Use which to find the location of the binary, then the [...]
About Danny W Sheehan
Danny has over 25 years in the IT industry and loves to blog about how to setup computer software, hardware, electronics and gadgets in general.
Linux Bonding | Channel Bonding | Ethernet Bonding | NIC Bonding
Linux includes a bonding driver that allows multiple network interfaces to be merged into a single logical (bonded) interface. Linux bonding is also more generically known as channel bonding, NIC bonding or Ethernet bonding. The type of bonding can be configured at the bonding driver load time. Broadly speaking, the bonded network interfaces can be [...]
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How To Add A New Network Adapter In VMware ESXi
I wanted to add an extra network card to my ESXi Hypervisor server to try to setup some teaming. Unfortunately the card I have is very old, and it is not on the VMware hardware compatibility list. It did get recognized at the PCI level, so the hardware is fine. It looks like my network [...]
How To Rescue Linux From The Grub Prompt
Ever encounter the dreaded Linux server that does not boot back up after a reboot? Here is how to rescue a Linux server from the grub prompt or from a rescue disk and mount the file systems so you can at least determine what went wrong. Method 1: Boot To Single User You will need the root [...]
Volume Manager Root Disk Encapsulation Recovery
I am not a big believer in root disk encapsulation with Veritas Volume Manager, now part of Symantec Storage Foundation. There have been a number of times when I have had to boot off the mirror disk, and had to completely de-encapsulate the mirror disk from Veritas Volume Manager to recover. Here is how [...]
Check Network Speed In Solaris 10
Here is a useful command to check the network speeds of NICs in Solaris 10. bash-3.00# dladm show-dev e1000g0 link: up speed: 1000 Mbps duplex: full e1000g1 link: unknown speed: 0 Mbps duplex: half e1000g2 link: unknown speed: 0 Mbps duplex: half e1000g3 link: unknown speed: 0 Mbps duplex: half e1000g4 link: up speed: 1000 [...]
VPS.NET SSL Certificate Installation On Ubuntu
Here are some quick notes on how to order and install the free SSL certificates provided by VPS.NET on your server. 1. Create a self-signed certificate. Install ssl-cert if it is not already installed root@ns2:/tmp# aptitude install ssl-cert NOTE: VPS.NET now require 2048 bit certificates. So, edit ssleay.cnf from1024 bits to 2048 bits. root@ns2:/tmp# [...]
Setting Ubuntu Default Crontab Editor
When you first invoke the crontab command in Ubuntu you are prompted for the default editor. If someone has already set this to nano and you are a vim-person this can be very annoying. To change it to vim use the select-editor command root@ns1:/etc# select-editor Select an editor. To change later, run ‘select-editor’. 1. [...]
Install Memcached on Ubuntu
Memcached on Ubuntu has actually two components. A standalone program running on your server and a client PHP extension. To be honest I noticed no increase in performance using memcached with the W3 Total Cache plugin. root@ns1:~# aptitude install memcached The following NEW packages will be installed: memcached First we need to install [...]
Check iPhone Warranty Online
Want to know if you iPhone is still under warranty. Just go to this site and enter your iPhone serial number. https://selfsolve.apple.com/agreementWarrantyDynamic.do To find you iPhone serial number go to Settings->General->Serial Number. Link to this post!
