wp.jochen.hayek.name/blog-en

Author: johayek

  • git, https URLs, invalid SSL certificates

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    johayek
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    My recent git problem looked like this: $ git clone https://git.CORP.org/GROUP/REPO.git Cloning into ‘REPO’… fatal: unable to access ‘https://git.CORP.org/GROUP/REPO.git/’: SSL certificate problem: unable to get local issuer certificate What are the available approaches? get a proper certificate and use it! switch off SSL verification! Approach (1) is certainly better than (2). But maybe you are…

  • icons on flaticon.com

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    johayek
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    Icons made by Freepik from www.flaticon.com are licensed by CC 3.0 BY. I needed an icon for my profile on a corporate GitLab site, and I chose one of their icons: https://www.flaticon.com/free-icon/showman_122463 They asked to credit them in public – that’s why I created this blog article.

  • “pdftohtml” – the one PDF utility I cannot “be” without

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    johayek
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    https://en.wikipedia.org/wiki/Poppler_(software)  – very nice description of the poppler-utils https://en.wikipedia.org/wiki/Xpdf https://github.com/Entware-ng/Entware-ng https://github.com/Entware-ng/Entware-ng/wiki https://github.com/Entware-ng/Entware-ng/wiki/Install-on-Synology-NAS I actually mean “pdftohtml -xml” – which creates XML from PDF, and this is my command line: $ pdftohtml -xml -i -nomerge -hidden FILE.pdf resp.: $ pdftohtml -xml -i -nomerge -hidden FILE.pdf FILE.pdftohtml.xml Sometimes I need to run “pdftohtml -xml” (on the command line)…

  • Synology knowledge base: What kind of CPU does my Synology NAS have?

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    johayek
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    https://www.synology.com/en-global/knowledgebase/DSM/tutorial/General/What_kind_of_CPU_does_my_NAS_have

  • the Cygwin packages that I need most seriously on a Windows PC

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    johayek
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    https://cygwin.com/cgi-bin2/package-grep.cgi https://cygwin.com/packages/package_list.html my package list: https://cygwin.com/packages/x86_64/wget https://cygwin.com/packages/x86_64/unzip https://cygwin.com/packages/x86_64/git https://cygwin.com/packages/x86_64/curl I can install these ones through apt-cyg (see below!) (maybe git, … from the list above as well): https://cygwin.com/packages/x86_64/diffutils https://cygwin.com/packages/x86_64/perl https://cygwin.com/packages/x86_64/perl-debuginfo  – solves the “Tie::Hash::NamedCapture” problem https://cygwin.com/packages/x86_64/python2 https://cygwin.com/packages/x86_64/python3 https://cygwin.com/packages/x86_64/ruby https://cygwin.com/packages/x86_64/openssh https://cygwin.com/packages/x86_64/rsync https://cygwin.com/packages/x86_64/xinit – X.Org X server launcher (Cygwin/X) https://cygwin.com/packages/x86_64/xmlstarlet – XMLStarlet is a command line XML toolkit which…

  • disabling password authentication with sshd

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    johayek
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    https://stackoverflow.com/questions/20898384/ssh-disable-password-authentication Apparently there are numerous attempts to log into my NAS (with invalid passwords) from the WAN side. Synology offers a feature to block IP addresses after a couple of invalid attempts and also log that blocking, and I am making use of that feature. After quite some months I got worried by the overwhelming…

  • Microsoft Windows: Unlock Virtual Desktops on Windows 7 or 8 With This Microsoft Tool

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    johayek
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    https://www.howtogeek.com/195962/unlock-virtual-desktops-on-windows-7-or-8-with-this-microsoft-tool/

  • “ssh -Y” fails moaning “X11 forwarding request failed on channel 0” – solved!

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    johayek
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    $ ssh -v -Y REMOTE_HOST […] debug1: Requesting X11 forwarding with authentication spoofing. debug1: Requesting authentication agent forwarding. X11 forwarding request failed on channel 0 I looked around and I found this article: https://www.cyberciti.biz/faq/how-to-fix-x11-forwarding-request-failed-on-channel-0/ The article advises to edit /etc/ssh/sshd_config on the remote system: $ sudo vi /etc/ssh/sshd_config and to add these lines: X11Forwarding yes…

  • the free “Pro Git” book, 2nd ed.

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    johayek
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    https://git-scm.com/book https://github.com/progit/progit2 https://www.amazon.com/dp/1484200772 https://www.amazon.de/dp/1484200772

  • GitLab – the GitHub competitor

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    johayek
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    https://en.wikipedia.org/wiki/GitLab https://about.gitlab.com As opposed to GitHub (GitHub_Desktop) apparently they do not have a proprietary GUI tool – and propagate it.