Software development, photography, jokes, ....

noyb-logo

Sites by me

 
sds82-logo
tas-logoTransportation Administration System
snoezelkussen-logo-kleinstSnoezelen Pillows for Dementia
ikzoekeenbegeleider-logoBegeleiders voor gehandicapten
Laat uw hond het jaarlijkse vuurwerk overwinnen
Betuweroute en Kunst
logo 50x50Hey Vos! Je eigen naam@vos.net emailadres?
Kunst in huis? Nicole Karrèr maakt echt bijzonder mooie dingen
nettylogo2Kunst in huis? Netty Franssen maakt ook bijzonder mooie dingen

Hosting Favorites

 
ANU Internet Services
Netim
GoDaddy
XEL Media

Blogroll

 
Bomenstichting
Google Translate
PHP
MySQL
jQuery
jQuery UI
YourHead Stacks API
Favicon Generator.
Password Generator.
Check HTTPS problems



Categories

Archives
 Mar 2024 (3)
 Feb 2024 (3)
 Jan 2024 (4)
 Sep 2023 (1)
 Aug 2023 (1)
 Jul 2023 (3)
 May 2023 (2)
 Apr 2023 (2)
 Mar 2023 (2)
 Feb 2023 (1)
 Jan 2023 (2)
 Oct 2022 (2)
 Sep 2022 (2)
 May 2022 (3)
 Mar 2022 (1)
 Feb 2022 (2)
 Jan 2022 (2)
 Nov 2021 (3)
 Oct 2021 (1)
 Sep 2021 (2)
 Aug 2021 (1)
 Jul 2021 (1)
 Jun 2021 (2)
 May 2021 (3)
 Apr 2021 (1)
 Mar 2021 (1)
 Feb 2021 (2)
 Jan 2021 (2)
 Dec 2020 (2)
 Oct 2020 (1)
 Sep 2020 (2)
 Aug 2020 (3)
 Jul 2020 (2)
 May 2020 (3)
 Apr 2020 (1)
 Mar 2020 (2)
 Feb 2020 (1)
 Jan 2020 (3)
 Dec 2019 (1)
 Nov 2019 (1)
 Oct 2019 (2)
 Aug 2019 (2)
 Jun 2019 (2)
 May 2019 (2)
 Apr 2019 (5)
 Feb 2019 (6)
 Dec 2018 (2)
 Nov 2018 (1)
 Oct 2018 (1)
 Sep 2018 (5)
 Aug 2018 (1)
 Jul 2018 (6)
 Jun 2018 (4)
 May 2018 (2)
 Apr 2018 (3)
 Mar 2018 (10)
 Feb 2018 (8)
 Jan 2018 (2)
 Dec 2017 (3)
 Nov 2017 (4)
 Oct 2017 (3)
 Sep 2017 (2)
 Aug 2017 (2)
 Jul 2017 (1)
 Jun 2017 (2)
 May 2017 (4)
 Apr 2017 (4)
 Mar 2017 (2)
 Feb 2017 (2)
 Jan 2017 (5)
 Dec 2016 (5)
 Nov 2016 (5)
 Oct 2016 (2)
 Sep 2016 (4)
 Aug 2016 (2)
 Jul 2016 (4)
 Jun 2016 (2)
 May 2016 (3)
 Apr 2016 (6)
 Mar 2016 (3)
 Feb 2016 (1)
 Jan 2016 (3)
 Dec 2015 (3)
 Nov 2015 (4)
 Oct 2015 (4)
 Sep 2015 (3)
 Aug 2015 (3)
 Jul 2015 (1)
 Jun 2015 (1)
 May 2015 (3)
 Apr 2015 (2)
 Feb 2015 (3)
 Jan 2015 (3)
 Dec 2014 (4)
 Nov 2014 (2)
 Oct 2014 (5)
 Sep 2014 (4)
 Aug 2014 (5)
 Jul 2014 (2)
 Jun 2014 (2)
 May 2014 (5)
 Apr 2014 (2)
 Feb 2014 (1)
 Jan 2014 (2)
 Dec 2013 (2)
 Nov 2013 (3)
 Oct 2013 (3)
 Sep 2013 (2)
 Aug 2013 (1)
 Jul 2013 (3)
 Jun 2013 (2)
 May 2013 (3)
 Apr 2013 (3)
 Mar 2013 (6)
 Feb 2013 (3)
 Jan 2013 (4)
 Dec 2012 (5)
 Nov 2012 (3)
 Oct 2012 (3)
 Sep 2012 (6)
 Aug 2012 (4)
 Jun 2012 (5)
 May 2012 (7)
 Apr 2012 (4)
 Mar 2012 (1)
 Feb 2012 (5)
 Jan 2012 (5)
 Dec 2011 (5)
 Nov 2011 (7)
 Oct 2011 (4)
 Sep 2011 (6)
 Aug 2011 (3)
 Jul 2011 (7)
 Jun 2011 (9)
 May 2011 (3)
 Apr 2011 (8)
 Mar 2011 (7)
 Feb 2011 (2)
 Jan 2011 (3)
 Dec 2010 (6)
 Nov 2010 (10)
 Oct 2010 (4)
 Sep 2010 (3)
 Aug 2010 (10)
 Jul 2010 (10)
 Jun 2010 (1)
 May 2010 (1)
 Apr 2010 (2)
 Mar 2010 (2)
 Feb 2010 (5)
 Jan 2010 (1)
 Dec 2009 (6)
 Nov 2009 (6)
 Oct 2009 (4)
 Sep 2009 (2)
 Jul 2009 (1)

Marc's Place


 

Powered by the Blogspot.stack

Install CentOS 8 / Stream in Parallels Desktop #centos #parallels #macos

 Permalink

I wrote a short how-to on how to create CentOS 8 VM in Parallels Desktop for Mac, for local development and testing.
 Comments

Hardware crash VM and invalid backup #crash #hardware #raid #backup

 Permalink
Due to a hardware crash last night of the VM where my virtual server is, eh was, running on, and a backup that occurred to be invalid, some recent files and images are now gone forever, unless one of the two failing SSD's can be recovered tomorrow.

So if you want to download something, and the file the link is pointing to, is missing, let me know.

I am now trying to get as much as I have saved back online.

Sorry for the inconvenience.

- -
Marc
 Comments

Setup your local macOS X web server #apache #macos #macosx #webserver #localhost #webdevelopment

 Permalink
I've put together a page where I describe how you can setup a web development environment with two or more Apple Macs.

If you are a web developer working on Apple Macs, you sure do want to use the macOS X built-in web server, Apache, on all your Macs. And you want to be able to access your Sites folder, local web documents folder and your other Mac via HTTP.

I'll describe how to set it up on macOS High Sierra (10.13.5). If you're on a previous version of macOS X, not to worry, the steps to take are practically identical. Read on ...
 Comments

I love the invention of virtualization

 Permalink
Click image to enlarge!
 Comments

[Repair] MySQL Upgrade on Mac OS X

 Permalink
Some time ago I did a MySQL upgrade without thinking ... that was not funny. So I retraced what I did to get the new version up and running and wrote it down as a sequence of steps to follow, when I need to upgrade to the next higher version.

I published these steps on the page [Repair] MySQL Upgrade (Mac OS X) , so they might be of help to you too.
 Comments

Apache vhost sort order on CentOS

 Permalink
I’ve written a page on how to control the order of Apache vhosts [on CentOS]. Just for reference.
 
 Comments

ProFTPD with MySQL backend

 Permalink
I know there are already many pages about ProFTPD and MySQL, but all info I needed was scattered over the Internet.
Therefore I collected all info I needed and put into one page: Setup ProFTPD and MySQL.
 
 Comments

Allow LoginWindow only for some users on Mac OS X Server

 Permalink
Looking for the way to disallow regular users to login via VNC or Apple Remote Desktop?

- Open Server Admin in /Applications/Server/
- Connect to and select your server.
- 10.5 Server: select Settings -> Access
- 10.7 Server: select Access
- Then select Services -> For selected services below -> Login Window.
- Then select Allow only users and groups below on the right, and add yourself and whoever else you want to grant access.

10.5 Server:
Allow LoginWindow for some Users Mac OS X 10.5 Server

10.7 Server:
Allow LoginWindow for some Users Mac OS X 10.7 Server

I have no idea if this method is still present in 10.8 or 10.9 server.
 Comments

Daily Script on Mac OS X Server did not clean up /tmp

 Permalink
Lately my /tmp folder was piling up with files (krb5cc*) without any signals that these files were regularly deleted. A bit of googling showed that these come from the Open Directory Server, but that's something I cannot control. So I went to investigate why the daily script would not delete them. I googled a bit again and found out where the parameter file for the daily, weekly and monthly cleanup-scripts is located: /etc/defaults/periodic.conf. There, I found these settings for /tmp :

# 110.clean-tmps
daily_clean_tmps_enable="YES"           # Delete stuff daily
daily_clean_tmps_dirs="/tmp"            # Delete under here
daily_clean_tmps_days="3"               # If not accessed for
daily_clean_tmps_ignore=".X*-lock .X11-unix .ICE-unix .font-unix .XIM-unix"
daily_clean_tmps_ignore="$daily_clean_tmps_ignore quota.user quota.group"
                                        # Don't delete these
daily_clean_tmps_verbose="YES"          # Mention files deleted


The one to look for is where it says "3". This indicates that the routine should clean up old files not accessed for 3 days. But it did not - and the files were not mentioned in the ignore-parameters. Even rm -rf krb5cc* returned immediately an error that its argument list was too long. Therefore I started reading what the exact values for this parameter should be.

Well, it turns out that the value needs a qualification, like d(ays) or m(months), etc.. I found that out by reading /etc/periodic/daily/110.clean-tmps and studying how find uses -atime, -ctime and -mtime and how to add or subtract values. Here are a few find-commands, copied from /etc/periodic/daily/110.clean-tmps, which I tried to make sure that what I just read was right:

$ cd /tmp
$ sudo find -dx . -fstype local -type f -atime +1h -mtime +1h -ctime +1h
$ sudo find -dx . -fstype local -type f -atime +1d -mtime +1d -ctime +1d
$ sudo find -dx . -fstype local -type f -atime +2d -mtime +2d -ctime +2d


Further reading suggested to use override-files, so I sudo'd into vi to create the file /etc/periodic.conf with the following contents:

daily_clean_tmps_days="2d"

Yes, 2 days. Three days is too long for a server, in my opinion. The file's attributes look like this:

marcvos @ ~ $ ls -l /etc/periodic.conf
-rw-r--r-- 1 root wheel 27 Oct 25 16:38 /etc/periodic.conf


Next, delete the file daily.out:

$ sudo rm /var/log/daily.out

Reboot the server. Check your /tmp folder and /var/log/daily.out the next days.

With me, I now finally saw all those files getting deleted.
 
 Comments

iperf3: a Network Bandwidth Tester

 Permalink
I was investigating my WiFi access points for improvement and while browsing the web for ideas I came across iperf3. Simple and effective, iperf3 is a tool to measure network bandwidth (read more about it ...)
To simplify installation, I created a MacOS X (Intel) installer package for iperf3 so you do not need to compile yourself.
(download iperf3.pkg)
An Universal Binary Installer Package for MacOS X can be found on NCSA Illinois, although that is iperf2.
(download iperf.pkg)

Simple 1-2-3 Network test:
Install iperf3 on a Mac where you start it as a server: open Terminal and enter the following:
iperf3 -s
Then install it on another Mac and run it as a client: open Terminal and enter:
iperf3 -c 192.168.178.131 -t 60 -P 2
where you must replace this IP-address with yours where iperf3 runs as a server on.

Wait a minute (-t 60) and the results are presented as follows:
Connecting to host 192.168.178.131, port 5201
[ 4] local 192.168.178.13 port 65334 connected to 192.168.178.131 port 5201
[ 5] local 192.168.178.13 port 65335 connected to 192.168.178.131 port 5201
[ ID] Interval Transfer Bandwidth
Sent
[ 4] 0.00-60.00 sec 342 MBytes 47.8 Mbits/sec
Received
[ 4] 0.00-60.00 sec 342 MBytes 47.8 Mbits/sec
Sent
[ 5] 0.00-60.00 sec 321 MBytes 44.9 Mbits/sec
Received
[ 5] 0.00-60.00 sec 321 MBytes 44.9 Mbits/sec
Total sent
[SUM] 0.00-60.00 sec 663 MBytes 92.7 Mbits/sec
Total received
[SUM] 0.00-60.00 sec 663 MBytes 92.7 Mbits/sec

iperf Done.


To stop the server, press CTRL-C.
Enter iperf3 --help  for all possible options.

This suite is also available on iOS: WiFi Bench.
 Comments
© 1997- Marc Vos (and others)   -   Privacy Statement   -    Contact Me

On this website, Google Analytics is used to track visitor statistics. These are anonymised data about the number of visitors, which pages they visit on this site, from which regions they visit, which web browsers they use, etc.. You will also see non-personalised ads via Google AdSense. Cookies from Paddle or Paypal are placed when you click on a 'Buy now!' or 'Donate!' button, and possible cookies from Disqus when you use that system to comment on one or more blogposts.
Privacy Statement