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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for April, 2017

Some links for MikroTik tips and scripts

Posted by jpluimers on 2017/04/25

MikroTik has great hardware, but getting things to work can be a bit ehm intimidating.

So here are some links that were useful getting my CCR1009 and CRS226 configurations to do what I wanted.

Very advanced stuff:

Packet flow (maybe the toughest part to wrap your head around):

Scripts:

Load balancing:

Syntax highlighting:

Pictures

Very well written blog:

Manito Network’s Mikrotik solutions blog. In-depth articles on Mikrotik routing, security, best practices, VPN, and more.

Source: Mikrotik — Manito Networks

Solutions for RouterOS-based Mikrotik networks. Includes security and best practices, VPN, routing, switching, and more.

Source: Mikrotik-1 — Manito Networks

–jeroen

Posted in DNS, Internet, IPSec, MikroTik, Network-and-equipment, OpenVPN, Power User, PPTP, routers, VPN | Leave a Comment »

ANSI HTML Adapter example

Posted by jpluimers on 2017/04/24

ANSI HTML Adapter example installation on OpenSuSE Tumbleweed:

zypper addrepo http://download.opensuse.org/repositories/utilities/openSUSE_Factory/utilities.repo
zypper refresh
zypper install aha

On Mac OS X:

brew install aha

Output looks like this: ANSI HTML Adapter example:

diaspore:/etc # aha --version
Ansi Html Adapter Version 0.4.9.0
diaspore:/etc # aha --version | grep aha
diaspore:/etc # aha --version | aha

Ansi Html Adapter Version 0.4.9.0

And the aha --help output on Mac OS X:

Ansi Html Adapter Version 0.4.8.0
aha takes SGR-colored Input and prints W3C conform HTML-Code
use: aha <options> [-f file]
     aha (--help|-h|-?)
aha reads the Input from a file or stdin and writes HTML-Code to stdout
options: --black,      -b: Black Background and White "standard color"
         --pink,       -p: Pink Background
         --stylesheet, -s: Use a stylesheet instead of inline styles
         --iso X,    -i X: Uses ISO 8859-X instead of utf-8. X must be 1..16
         --title X,  -t X: Gives the html output the title "X" instead of
                           "stdin" or the filename
         --line-fix,   -l: Uses a fix for inputs using control sequences to
                           change the cursor position like htop. It's a hot fix,
                           it may not work with any program like htop. Example:
                           echo q | htop | aha -l > htop.htm
         --word-wrap,  -w: Wrap long lines in the html file. This works with
                           CSS3 supporting browsers as well as many older ones.
         --no-header,  -n: Don't include header into generated HTML,
                           useful for inclusion in full HTML files.
Example: aha --help | aha --black > aha-help.htm
         Writes this help text to the file aha-help.htm

Copyleft Alexander Matthes aka Ziz 2015
         zizsdl@googlemail.com
         http://ziz.delphigl.com/tool_aha.php
This application is subject to the MPL or LGPL.

–jeroen


diaspore:/etc # aha –version
Ansi Html Adapter Version 0.4.9.0
diaspore:/etc # aha –version | aha
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"&gt;
<!– This file was created with the aha Ansi HTML Adapter. https://github.com/theZiz/aha –>
<html xmlns="http://www.w3.org/1999/xhtml"&gt;
<head>
<meta http-equiv="Content-Type" content="application/xml+xhtml; charset=UTF-8" />
<title>stdin</title>
</head>
<body>
<pre>
<span style="color:red;font-weight:bold;">Ansi Html Adapter</span> Version 0.4.9.0
</pre>
</body>
</html>

view raw

aha.example.txt

hosted with ❤ by GitHub

Posted in *nix, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »

Some Wireshark links

Posted by jpluimers on 2017/04/24

I don’t use Wireshark enough to be fluent, so here are some links and quotes that proved to be useful for me:

–jeroen

Posted in *nix, *nix-tools, Power User, Wireshark | Leave a Comment »

opensuse – How to run my script after SuSE finished booting up? – Unix & Linux Stack Exchange

Posted by jpluimers on 2017/04/21

For future research: opensuse – How to run my script after SuSE finished booting up? – Unix & Linux Stack Exchange

Reason? Want to show the output of this as the last boot sequence line:

hostname
ip route
echo
ip address | grep -w 'UP\|flags\|inet\|inet6'
echo more detailed info through "ip address" and "ip route"
cat /etc/resolv.conf | grep nameserver

–jeroen

Posted in *nix, *nix-tools, bash, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »

when apple.com != apple.com – Phishing with Unicode Domains – Xudong Zheng

Posted by jpluimers on 2017/04/21

Vulnerability in Chrome, Firefox, and Opera makes users susceptible to phishing with Unicode domains.

Source: [Archive.isPhishing with Unicode Domains – Xudong Zheng

Basically these are not the same sites:

Depending on the font used, you might notice it if you look very careful.

Keywords: Unicode codepoints, visual similarity, codepoint to character mapping in fonts, Punycode

Via: [WayBack] Same URL, two websites? (notice the difference)1. https://www.аррӏе.com/2. https://www.apple.com/ – Jean-Luc Aufranc – Google+

References:

–jeroen

Posted in Power User, Security | Leave a Comment »

Tested the CastBuddy extension from the Chrome Web Store: nice, but high CPU usage even when no videos

Posted by jpluimers on 2017/04/21

CastBuddy – Chrome Web Store:

This extension finds videos on the web sites you are browsing and allows you to play them on your Chromecast device.

Works nice if you need it, but uses a lot of CPU (on my Retina MacBook with latest chrome: about 75% of one CPU core) so it drains battery fast.

You can view this high CPU usage in the Chrome Task Manager (which used to be available through chrome://tasks, but this is one of the use full Find Hidden Features On Chrome’s Internal Chrome:// Pages features they removed). Fire up the Chrome Task Manager through the Window menu.

Verdict

Enable only when you need it. Disable after use in chrome://extensions

–jeroen

via: CastBuddy – Chrome Web Store:

When it finds Chromecast comptible videos ( .webm, .mp4, .mkv etc), count of videos is shown over extension’s menubar icon, which you can click to Select a video and extension will send it to your Chromecast device. Once a casting session is established, you can control video playback from Extension’s popup page.

Posted in Chrome, Google, Power User | 2 Comments »

Warning: C64 geek pr0n! A Mind Is Born

Posted by jpluimers on 2017/04/20

Geek pr0n on the C64:

Making a demo in just 256 bytes would be a formidable challenge regardless of platform. A Mind Is Born is my attempt to do it on the Commodore 64. In the absence of an actual 256-byte compo, it was submitted to the Oldskool 4K Intro compo at [WayBackRevision 2017, where it ended up on 1st place.

Source: [WayBackA Mind Is Born

Via:

–jeroen

Read the rest of this entry »

Posted in 6502, C64, Commodore, Development, History, Software Development | Leave a Comment »

use vmrun – via How do I find the IP address of a virtual machine using VMware Fusion? – Super User

Posted by jpluimers on 2017/04/20

Note this works only when the VMs have VMware Tools installed (more on that below):

VMWare provides, not surprisingly, a built in tool for this, vmrun. It’s under /Applications/VMware Fusion.app/Contents/Library/vmrun although it has moved around in other Fusion releases a bit.

🍺 vmrun list Total running VMs: 1 .docker/machine/machines/myvm.vmx
🍺 vmrun getGuestIPAddress ~/.docker/machine/machines/myvm.vmx 172.16.213.128

via: How do I find the IP address of a virtual machine using VMware Fusion? – Super User [WayBack]

vmrun [WayBack] is barely documented and most of is in PDF of which this is the most recent I could find: www.vmware.com/pdf/vix180_vmrun_command.pdf [WayBack]

Based on the above path, I added this to my ~/.bash_profile file:

alias vmrun='/Applications/VMware\ Fusion.app/Contents/Library/vmrun'
alias vmrun-list-running-VMs='vmrun list | grep vmx'
vmrun-list-ipv4-of-running-VMs()
{
  vmrun-list-running-VMs | while read line ; do echo $line && vmrun getGuestIPAddress $line; done
}

Now I can do this:

$ vmrun-list-ipv4-of-running-VMs
/Users/jeroenp/VM/W81Entx64DelphiRegression.vmwarevm/W81Entx64.vmx
172.16.172.135
/Users/jeroenp/VM/diaspore-opensuse-Tumbleweed-x64.vmwarevm/diaspore-opensuse-Tumbleweed-x64.vmx
Error: The VMware Tools are not running in the virtual machine: /Users/jeroenp/VM/diaspore-opensuse-Tumbleweed-x64.vmwarevm/diaspore-opensuse-Tumbleweed-x64.vmx
$ vmrun-list-ipv4-of-running-VMs
/Users/jeroenp/VM/diaspore.opensuse-Tumbleweed-x64/diaspore.opensuse-Tumbleweed-x64.vmx
Error: Unable to get the IP address
/Users/jeroenp/VM/W81Entx64DelphiRegression.vmwarevm/W81Entx64.vmx
172.16.172.135
$ vmrun-list-ipv4-of-running-VMs
/Users/jeroenp/VM/diaspore.opensuse-Tumbleweed-x64/diaspore.opensuse-Tumbleweed-x64.vmx
Error: Unable to get the IP address
/Users/jeroenp/VM/W81Entx64DelphiRegression.vmwarevm/W81Entx64.vmx
172.16.172.135
$ vmrun-list-ipv4-of-running-VMs
/Users/jeroenp/VM/diaspore.opensuse-Tumbleweed-x64/diaspore.opensuse-Tumbleweed-x64.vmx
172.16.172.134
/Users/jeroenp/VM/W81Entx64DelphiRegression.vmwarevm/W81Entx64.vmx
172.16.172.135
$ vmrun-list-ipv4-of-running-VMs
/Users/jeroenp/VM/diaspore.opensuse-Tumbleweed-x64/diaspore.opensuse-Tumbleweed-x64.vmx
172.16.172.134
/Users/jeroenp/VM/W81Entx64DelphiRegression.vmwarevm/W81Entx64.vmx
172.16.172.142

These are the messages I observed:

Error: The VMware Tools are not running in the virtual machine: /Users/jeroenp/VM/diaspore-opensuse-Tumbleweed-x64.vmwarevm/diaspore-opensuse-Tumbleweed-x64.vmx
Error: Unable to get the IP address
172.16.172.135

The first one means a machine is running but has no VMware Tools installed. For an OpenSuSE machine you can install it with zypper install open-vm-tools, for other Linux systems read VMware Tools auf Ubuntu, Mint, CentOS oder openSUSE installieren | ITrig [WayBack]

Some more examples of vmrun for VMware Fusion are at Control VMware Fusion from the Command Line | James Reuben Knowles [WayBack]

–jeroen

Posted in *nix, bash, Development, Fusion, openSuSE, Power User, Scripting, Software Development, SuSE Linux, Tumbleweed, Virtualization, VMware | Leave a Comment »

(35) Introducing Macintosh System 7.5 Product Overview – July 15, 1994 – Apple VHS Archive – YouTube

Posted by jpluimers on 2017/04/20

Some 23 years ago…

Posted in Apple, Classic Macintosh, History, Macintosh SE/30, Power User | Leave a Comment »

Dark corners of Unicode / fuzzy notepad

Posted by jpluimers on 2017/04/20

You think you know Unicode? Think again, then read [Wayback] Dark corners of Unicode / fuzzy notepad.

On basics, sorting, comparison, decomposition, composition, width, whitespace, encoding, emoji, interesting code planes and dark corners. Lots of dark corners.

The examples are in Python, but hold for almost any programming language

–jeroen

via: Kristian Köhntopp

Posted in Conference Topics, Conferences, Development, Encoding, Event, Software Development, Unicode | Leave a Comment »