Koninklijke KPN N.V Data Centers.
There are many more (for me) “local” Data Centers in:
- Amsterdam Search – Data Center Map.
- The Netherlands Search – Data Center Map.
–jeroen
Archive for the ‘Infrastructure’ Category
Koninklijke KPN N.V Data Centers
Posted by jpluimers on 2015/11/23
Posted in Infrastructure, Power User | Leave a Comment »
Batch file to open a specific TCP port in Windows 7 / 2008 Server and up
Posted by jpluimers on 2015/09/18
Thanks to the answer by Kevin Richardson on How to open ports on Windows firewall through batch file, I wrote this batch file that uses the add command of the Netsh AdvFirewall Firewall Commands which requires Admin privileges to run:
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| :: open port (first argument passed to batch script, second argument is description) | |
| :checkPrivileges | |
| net file 1>nul 2>nul | |
| if '%errorlevel%' == '0' ( goto :gotPrivileges ) else ( goto :getPrivileges ) | |
| :isNotAdmin | |
| :getPrivileges | |
| echo You need to be admin running with an elevated security token to run %0 | |
| goto :exit | |
| :isAdmin | |
| :gotPrivileges | |
| netsh advfirewall firewall add rule name="Open Port %1 for %2" dir=in action=allow protocol=TCP localport=%1 | |
| :exit | |
| ::pause | |
| exit /b |
–jeroen
via: How to open ports on Windows firewall through batch file – Stack Overflow
Share this:
Posted in Firewall, Infrastructure, Microsoft Surface on Windows 7, Power User, Windows, Windows 7, Windows 8, Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2 | Leave a Comment »
Was ist Cloud? Great presentation including transcript by Kristian Köhntopp.
Posted by jpluimers on 2015/08/23
When one of my DevOps friends asks: Was ist Cloud?.
Kristian Köhntopp even published it as a SlideShare deck with transcript: Was ist Cloud?.
There is even a video: Froscon “Was ist Cloud?” – Video.
Thanks a million, Kris, this is very much worth reading for anybody doing Ops, Dev or DevOps.
There is even a
If you can’t read German: tough luck (;
–jeroen
Share this:
Posted in Cloud, Development, Firewall, Infrastructure, Software Development | Leave a Comment »
Blast from the past: the digital highway as imagined circa 1995.
Posted by jpluimers on 2015/08/07
Blast from the past: the digital highway as imagined circa 1995 (thanks Kristian Köhntopp for sharing this a while ago).
Learned a new phrase too (handfeste Datenträger) for something a marching band friend of mine was involved in: before he suddenly passed away at 39 he was a “high bandwidth courier” giving meaning to the phrase by Tanenbaum “Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway” by driving around magnetic tapes and optical media between various locations for about 600+ km a day.
Who could imagine in the age where ISDN at home (@ 64 kibit/s) was fast, that 20 years later you could have fiber (@ 500 Mibit/s) at home both for like EUR 50/month.
Like Steve Streeting posted: having high bandwidth (relative to the time you live in) makes you stop thinking about your internet speed
It allows you to find new usage patterns. Which is good for imagination, work, etc.
–jeroen
PS:
I lied a little. EUR 50/month is for the subscription only. Nowadays that means a permanent connection. In the ISDN days having a permanent connection to an ISP would set you down another EUR 50/month for the ISP, and about EUR 600/month of data usage to the telecom provider.
I did that for a couple of years until cable and ADSL became available. Why? Because it was the fastest way to stay informed (gopher, newsgroups, mailing lists, early forums and web-sites) and get the latest software (mainly over FTP).
Imagine this was only years after not even HCC being able to sustain the costs of a Fidonet transatlantic link, and now two decades later. I’ve posted about Fidonet before, and back-then it was the most affordable way to access information from across the world.
Now less than a century after the first transatlantic phone service was established in 1927, world wide communication is almost free (and there is even internet in space).
PPS:
Swets – where my friend worked for filed for bankruptcy last year. No more high bandwidth couriers…
via:
- Vor 20 Jahren: »Telekom – Digitalisierung der Netze: Die Datenautobahn«.
- SteveStreeting.com » Hands on with JT’s fibre to the home.
Share this:
Posted in BBS, FidoNet, History, Infrastructure | Leave a Comment »
ENDIAN Firewall – Connected client can access EFW but no other hosts: enable promiscuous mode on VMware ESXi
Posted by jpluimers on 2010/10/12
While solving a problem with Windows 7 machines not being able to ping the machines on the GREEN LAN of an Endian when connecting through OpenVPN, but XP machines could, I did a few upgrades, then went on to solve the problem.
- Upgraded from ESX 3.5 to ESXi 4.1 (I needed this anyway because of Pass Through USB support)
- Upgraded the community edition appliance from Endian 2.2 to Endian 2.4 (which has more configuration options, and better ways for reporting and logging)
Then I went on solving the issue, which I suspected was a kind of routing problem. Read the rest of this entry »
Share this:
Posted in Endian, ESXi4, ESXi5, ESXi5.1, Firewall, Infrastructure, OpenVPN, Power User, VMware, VMware ESXi | 8 Comments »
The Wiert Corner - irregular stream of stuff 