Harald Hoyer - programming

rman - Search the Rust Documentation offline

Harald Hoyer — Tue, 23 Jun 2020 00:00:00 +0000
Want to search your local offline rust std</code> documentation, with a quick command from your terminal?</p>
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Rust - Static PIE and ASLR for the x86_64-unknown-linux-musl Target
Harald Hoyer — Tue, 23 Jun 2020 00:00:00 +0000
With current rust nightly the default binary output of the x86_64-unknown-linux-musl</code> target is a
static position independent executable (static-pie)
with address space layout randomization (ASLR) on execution.</p> 
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Bat understands varlink now
Harald Hoyer — Thu, 07 Feb 2019 07:04:47 +0000
Bat</a> is a cat(1)</em> clone with syntax highlighting and Git integration.</p>
My pull request for varlink syntax coloring was accepted today :-)</p> 
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varlink and the elvish shell
Harald Hoyer — Thu, 22 Feb 2018 09:53:37 +0000
I recently discovered Elvish</a>, which is a shell perfectly
suited to process structured data. In my case it is perfect to be used with
varlink</a>. Too bad elvish has no numeric type and
can’t feed varlink with int and float, because to-json converts them to strings.</p> 
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varlink for dnf - a Showcase
Harald Hoyer — Thu, 22 Feb 2018 07:09:03 +0000
On the varlink wiki page</a> I showcase how to add varlink to a python project. In this case, I chose DNF, the rpm package manager of Fedora.</p> 
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Rust Echo Server
Harald Hoyer — Fri, 09 Dec 2016 14:23:35 +0000
On modern CPUs, rust seems to perform very nicely with the thread context switches,
at least when benchmarking an echo server</a>.
For that I also wrote an echo server benchmark client</a>.</p> 
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dracut and CVE-2016-4484: Cryptsetup Initrd root Shell
Harald Hoyer — Tue, 15 Nov 2016 16:42:23 +0000
People who want to secure their Fedora/RHEL system have to:</p>

add a BIOS password</li>
add a grub password</li>
add “rd.shell=0” to the kernel command line</li>
</ul>
Anaconda does add “rd.shell=0” to the kernel command line automatically, if you setup the bootloader with a password.</p> 
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A Python Transaction Class
Harald Hoyer — Tue, 13 Oct 2015 10:20:43 +0000
This is a repost of a blog post of 2008. Just for the reference :-)</p>
This class allows sub-classes to commit changes to an instance to a history, and rollback to previous states.</p> 
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libtool: getting rid of 180,000 sed forks
Harald Hoyer — Thu, 05 Mar 2015 08:10:36 +0000
When compiling systemd on rawhide, we noticed a significant slowdown in compile time.
Investigating further, it turns out, that libtool forks an incredible amount of sed.
Running perf showed 30% of the “make all” was spent in bash. strace showed an execve of
sed with the same arguments 180,000 times!!!!!</p> 
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dracut - kernel command line
Harald Hoyer — Mon, 04 Nov 2013 18:36:27 +0000
To quickly find out, what dracut wants as the kernel command for your current disk setup,
fire up:</p>
# </span>dracut</span> --print-cmdline
</span></code></pre> Read More