Posted by jpluimers on 2017/06/09
The locking tab of RJ45 plugs breaks very easily. Replace it by two nylon cable ties (aka zip ties), in minutes. IMPORTANT NOTES: – This must be regarded as a temporary “Mac Gyver” solution, for home usage. – Definitely not for IT staff! (no crimper? asking for one in the budget won’t get you fired!) – Before the tab breaks, consider protecting the plug.
Source: Repair a Broken Ethernet Plug – All
via: Now that’s very cool!! – Joe C. Hecht – Google+
Posted in LifeHacker, Network-and-equipment, Power User | Leave a Comment »
Posted by jpluimers on 2017/06/08
The RouterOS scripting language you can use on Mikrotik device immediately shows it’s origin: the console.
As promised some links to questions I asked:
:global convert ({});/system script entries to the file system, but due to a stupid 4096 length string export issue (causing the dreaded “failure: new contents too long” error), scripts longer than 4096 bytes will not even be written truncated. Since LUA got ditched and never re-introduced, LUA is not a workaround either and splitting into multiple files is impractical./system script` entries::foreach scriptId in [/system script find] do={ :local scriptSource [/system script get $scriptId source]; :local scriptSourceLength [:len $scriptSource]; :local scriptName [/system script get $scriptId name]; :put "$scriptSourceLength bytes: '$scriptName'" }Some questions by others that were also extremely useful:
:if ([:len [:find "abcd" "x"]] > 0) do={:put "Found";} else={:put "Not Found";};:return from a function when inside a loop, but that’s not the same (for instance compare C# break versus return or Delphi break versus exit).And a few observations:
:local myFunc do={:put "hello from function"}
$myFunc
# output:
# hello from function
–jeroen
Posted in Development, Internet, MikroTik, Power User, RouterOS, routers, Scripting, Software Development | 1 Comment »
Posted by jpluimers on 2017/06/07
When switching my DHCP to a Mikrotik CCR1009, both the AP7920 and AP7921 failed to get IP addresses. The APC7921 would look bounce between waiting and offered states like this:
The cause is the need of DHCP Option 43 (Vendor Class Identifier) specified in RFC2132 – based on [WayBack] RFC 2131 – Dynamic Host Configuration Protocol and [WayBack] RFC 1533 – DHCP Options and BOOTP Vendor Extensions – which I found first via these links:
Posted in Development, Internet, MikroTik, Power User, RouterOS, routers, Scripting, Software Development | 3 Comments »
Posted by jpluimers on 2017/06/06
The WAN sides of my Mikrotik CCR1009 are partly behind Fritz!Box routers that do NAT and contain a truckload of port-forwards.
A while ago, I wanted the CCR1009 to do PPTP as Fritz!Box 7360 and 7490: static routes over VPN don’t work (so I could only VPN to the WAN side of the CCR1009). However, it would not pass through the Fritz!Box from the outside.
It appears you need to forward both:
Maybe one day I will ditch the Fritz!Box 7490 and directly hookup the Mikrotik to the NTU: xs4all ftth en Mikrotik router – Google Groups.
But preferably I should follow Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)
–jeroen
via: VPNs einrichten mit PPTP – administrator.de: Achtung mit PPTP VPN Servern hinter NAT Firewalls !
Forward both PPTP TCP port 1723 and the GRE protocol
Posted in Fritz!, Fritz!Box, Fritz!WLAN, Internet, IPSec, MikroTik, Network-and-equipment, Power User, PPTP, routers, VPN | Leave a Comment »
Posted by jpluimers on 2017/06/05
Interesting:
As I always try to maximize the usage of new hardware I started to explore what is possible with this combination. In this post I will explain how you get access to your FRITZ!Box using ssh.
Source: FRITZ!Box tuning part 1: Enable remote access over ssh [WayBack]
–jeroen
Posted in Fritz!, Fritz!Box, Internet, Power User | Leave a Comment »
Posted by jpluimers on 2017/06/02
Just one example; it applies to virtually all consumer IoT and routers I know: upgrading is hard especially if it’s undocumented on how to keep your configuration.
–jeroen
Posted in Internet, IoT Internet of Things, Power User, routers, TomatoUSB | Leave a Comment »
Posted by jpluimers on 2017/05/25
For my own reference:
–jeroen
Posted in Fujitsu ScanSnap, Hardware, ix500, LifeHacker, Power User, Scanners | Leave a Comment »
Posted by jpluimers on 2017/05/24
Cool: someone made a CheatSheet for Readline keyboard shortcuts for bash, bc, ftp, gnuplot, gpg, ksh, mysql, psql, python, smbclient, xmllint and zsh [WayBack] of the GNU Readline library [WayBack].
–jeroen
Posted in *nix, *nix-tools, Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »
Posted by jpluimers on 2017/05/23
Reminder to self: document what I change, and borrow some from this interesting thread:
–jeroen
Posted in Delphi, Development, Keyboards and Keyboard Shortcuts, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2017/05/19
An interesting discussion on Xeon based 2nd hand systems that are way cheaper than new ones:
[WayBack] People have been asking about the fact I use old Xeon boxes for my development platforms (and indeed more). I want to cover what I use, why I use them, … – Alan Cox – Google+
I still run a couple of HP XW6600 workstations with [WayBack] E5420 processors (of the [WayBack] Harpertown family) to host VMs on. Works splendid.
–jeroen
Source: [People have been asking about the fact I use old Xeon boxes for my developmen…1919
Posted in Hardware, HP XW6600, LifeHacker, Power User, Virtualization | Leave a Comment »
The Wiert Corner - irregular stream of stuff 