| 2021-12-31: |
Why I (still) use ext4 for my Linux root filesystems
|
| 2021-12-30: |
Checking what features your ext4 filesystems have
|
| 2021-12-29: |
Pipx's 'reinstall' command works right by reinstalling injected packages too
|
| 2021-12-28: |
A realization of why email is critical infrastructure for the Internet
|
| 2021-12-27: |
Link: Eric Rescorla's "DNS Security, Part II: DNSSEC"
A thesis: large, significant open source projects must keep moving or die
Security systems and requiring attacks instead of accidents to evade them
|
| 2021-12-25: |
Our webmail is a surprisingly popular service
|
| 2021-12-24: |
Sadly, my experience is that big commercial anti-malware detection is better
|
| 2021-12-23: |
Running your own email is increasingly an artisanal choice, not a practical one
|
| 2021-12-22: |
Using pipx in a PyPy installation more or less just works
|
| 2021-12-21: |
Our internal network access authentication needs
|
| 2021-12-20: |
Some usage notes for the Linux ss program
|
| 2021-12-19: |
My Firefox bookmarklet to see links I've visited more reliably
Some brief notes for myself on growing a LVM root filesystem
|
| 2021-12-17: |
Our never-used system for user-provided NFS accessible storage
In Go 1.18, generics are implemented through code specialization
|
| 2021-12-15: |
User runtime directories on modern Linux, aka /run/user/<uid>
|
| 2021-12-14: |
Finding Ubuntu (and Debian) packages that are in odd states
|
| 2021-12-13: |
A bit on compilation's changing number of stages (and assembly)
|
| 2021-12-12: |
How Vim's visual mode has wound up being useful for me
|
| 2021-12-11: |
Some numbers from ZRAM swap on my two Fedora machines
|
| 2021-12-10: |
The question (and some answers) of modern day partition sizes for Linux
|
| 2021-12-09: |
Why it's good to explicitly document the purposes of things, illustrated
Some NVMe drive temperature things from my drives
|
| 2021-12-08: |
NVMe drives and the case of opaque bandwidth limits
|
| 2021-12-06: |
Linux's vm.admin_reserve_kbytes sysctl is both not big enough and not sufficient
|
| 2021-12-05: |
A bit on what Unix system pre-boot environments used to look like
|
| 2021-12-04: |
Most computer standards broadly require good faith implementations
|
| 2021-12-03: |
My views so far on bookmarklets versus addons in Firefox
|
| 2021-12-02: |
On servers maybe moving to M.2 NVMe drives for their system drives
|
| 2021-12-01: |
Unfortunately, damaged ZFS filesystems can be more or less unrepairable
|
| 2021-11-30: |
Prometheus will make persistent connections to agents (scrape targets)
|
| 2021-11-29: |
The long term relative prices of M.2 NVMe drives and 2.5" SSDs
|
| 2021-11-28: |
The problem I have with Pip's dependency version handling
|
| 2021-11-27: |
Two stories of how and why simultaneous multithreading works
|
| 2021-11-26: |
How we use the SLURM job scheduler system on our compute servers
Why region based memory allocation help with fragmentation
|
| 2021-11-25: |
Computation that needs to be "secure" is everywhere in practice
|
| 2021-11-23: |
I wish systemd logged information about the source of "transactions"
|
| 2021-11-22: |
Why it matters to us if exploits are available for security issues
|
| 2021-11-21: |
Why V7 Unix matters so much
|
| 2021-11-20: |
Linux has no fair-share scheduling that really works for compute servers
Why your Go programs can surprisingly be dynamically linked
|
| 2021-11-18: |
What data about your NVMe drives Linux puts in sysfs
|
| 2021-11-17: |
Why we have a split-horizon DNS setup
|
| 2021-11-16: |
Why we have public websites on private IPs (internally)
|
| 2021-11-15: |
Chrome may start restricting requests to private networks
|
| 2021-11-14: |
Go 1.18 will let you set the version of the "AMD64" architecture to target
|
| 2021-11-13: |
Considering "iowait" CPU time and CPU utilization
|
| 2021-11-12: |
A linear, sequential boot and startup order is easier to deal with
|
| 2021-11-11: |
I'm unsure of the security of simultaneous multithreading on modern x86 CPUs
|
| 2021-11-10: |
People will always exploit presentation, because presentation matters
|
| 2021-11-09: |
Our new way of waiting for the network to be "up" in systemd's world
|
| 2021-11-08: |
Soon to expire TLS certificates aren't necessarily a problem
|
| 2021-11-07: |
Systemd timer units don't have much appeal for us (over crontab entries)
|
| 2021-11-06: |
Thinking about when our crontab entries run
|
| 2021-11-05: |
If we use PyPy, we'll likely use our own install of it
|
| 2021-11-04: |
Two different worldviews of version control systems
|
| 2021-11-03: |
Thinking through the threat models when encrypting your backups
|
| 2021-11-02: |
Why I maintain my private changes to upstream projects via rebasing
|
| 2021-11-01: |
Rebasing changes can be common when working with version control systems
|
| 2021-10-31: |
Linux puts a bunch of DMI information into sysfs for you
Python 3 forced its own hand so that standard input had to be Unicode
|
| 2021-10-29: |
Why browsers are driven to offer some degree of remote control
Things to do in Python 3 when your Unix standard input is badly encoded
|
| 2021-10-27: |
We're seeing increasingly targeted and dangerous phish spam attempts
|
| 2021-10-26: |
Vim visual mode and an unfortunate restriction on the filter operation
Go 1.18 will embed source version information into binaries
|
| 2021-10-24: |
Companies and their stewardship of open source projects
Your SMART drive database of attribute meanings needs regular updates
|
| 2021-10-22: |
Python 2's status in various Linux distributions (October 2021 edition)
|
| 2021-10-21: |
The easy way to see underneath NFS mount points on Linux
|
| 2021-10-20: |
In the beginning, there was no way to expand C's stack size
|
| 2021-10-19: |
VCS history versus large open source development
|
| 2021-10-18: |
The cut and paste irritation in "smart" in-browser text editing
Getting some hardware acceleration for video in Firefox 93 on my Linux home desktop
|
| 2021-10-16: |
My wish for a way to activate one systemd unit when another one started
|
| 2021-10-15: |
You may not want to require all of your bind mounts (in systemd)
|
| 2021-10-14: |
Systemd (v237) can do quite odd things with /etc/fstab bind mounts
|
| 2021-10-13: |
Web browsers drive what Certificate Authority root certificates are accepted
|
| 2021-10-12: |
Reasons to limit your stack size even in non-threaded environments
|
| 2021-10-11: |
Unknown NMIs and counting hardware CPU events in eBPF programs
|
| 2021-10-10: |
TLS Certificate Transparency logs let us assess Certificate Authorities
V7 Unix had no stack size limit, and when Unix acquired one
|
| 2021-10-08: |
We've migrated from Yubikey 2FA to the university's MFA
What Linux kernel "unknown reason" NMI messages mean
|
| 2021-10-06: |
The OpenSSH server has limits on what user authentication you can use
|
| 2021-10-05: |
Some early notes on using pipx for managing third-party Python programs
|
| 2021-10-04: |
The "why" problem with on-host (host-based) firewalls on your machines
|
| 2021-10-03: |
Modern TLS has no place left for old things, especially clients
Desktops don't always use NetworkManager's programs
|
| 2021-10-01: |
Firefox on Unix is moving away from X11-based remote control
|
| 2021-09-30: |
Moving averages (and rates) for metrics in Prometheus (and Grafana)
|
| 2021-09-29: |
My changing (citation) style of external links here on Wandering Thoughts
|
| 2021-09-28: |
Avoiding flawed server ACPI information for power monitoring
|
| 2021-09-27: |
Stack size is invisible in C and the effects on "portability"
|
| 2021-09-26: |
The shifting view of two factor authentication at the university
|
| 2021-09-25: |
Notes on updating OpenBSD machines to current, supported versions
|
| 2021-09-24: |
Understanding EGL, GLX and friends in the Linux and X graphics stack
Link: Examining btrfs, Linux’s perpetually half-finished filesystem
Go generics have a new "type sets" way of doing type constraints
|
| 2021-09-22: |
It's probably not the hardware, a sysadmin lesson
|
| 2021-09-21: |
Why we care about being able to (efficiently) reproduce machines
|
| 2021-09-20: |
What the 'proto' field is about in Linux 'ip route' output (and input)
|
| 2021-09-19: |
Microsoft's Bingbot crawler is relentless for changing pages (it seems)
|
| 2021-09-18: |
One major obstacle to unifying the two types of package managers
|
| 2021-09-17: |
At least from an outside perspective, Ubuntu is Canonical's thing
|
| 2021-09-16: |
Use virtual environments to install third-party Python programs from PyPI
|
| 2021-09-15: |
Some notes on upgrading programs with Python's pip
|
| 2021-09-14: |
There are (at least) two types of package managers
|
| 2021-09-13: |
The rc shell's nice feature for subdirectory searching of $PATH
Why I'm mostly not a fan of coloured text (in terminals or elsewhere)
|
| 2021-09-11: |
How many Prometheus metrics a typical host here generates
Some things to reduce background bandwidth usage on a Fedora machine
|
| 2021-09-09: |
TLS Certificate Transparency logs come and go over time
|
| 2021-09-08: |
The "web" TLS world is different from the non-public one in practice
|
| 2021-09-07: |
My long-lived personal Linux installs
|
| 2021-09-06: |
Why Nutch-based web spiders are now blocked here
|
| 2021-09-05: |
Firefox on Linux is still not working well with WebRender for me (again)
|
| 2021-09-04: |
Adding a "host" label to all of your per-host Prometheus metrics
|
| 2021-09-03: |
How I try out and test new versions of Grafana
|
| 2021-09-02: |
Go multi-module workspace mode, a forthcoming feature in Go 1.18
|
| 2021-09-01: |
Large Unix programs were historically not all that portable between Unixes
|
| 2021-08-31: |
Go doesn't have a stack the way that some other languages do
|
| 2021-08-30: |
How ZFS stores symbolic links on disk
|
| 2021-08-29: |
Some notes on OpenZFS's new 'draid' vdev redundancy type
In Go, pointers (mostly) don't go with slices in practice
|
| 2021-08-27: |
What my first Linux was, and its context
Using our metrics system when I test systems before deployment
|
| 2021-08-25: |
I'm turning off dnf-makecache on my Fedora machines
My interest in Intel's future discrete GPUs (and my likely disappointment)
|
| 2021-08-23: |
Notes on deliberately invoking actions controlled by systemd timers
|
| 2021-08-22: |
What we'll likely do when Linux distributions drop Python 2 entirely
Setting up Python LSP support in GNU Emacs is reasonably worth it
|
| 2021-08-20: |
A home UPS has been more handy and useful than I expected
Seeing what all Cinnamon keyboard shortcuts are
|
| 2021-08-19: |
Configuration (and configuration files) is not and cannot be generic
|
| 2021-08-17: |
It's surprising how many things assume you have available bandwidth
|
| 2021-08-16: |
Browsers listening to developers or users requires them to be humble
|
| 2021-08-15: |
Chrome's automatic updates and the power it holds on the web
|
| 2021-08-14: |
Our experience with IPP-based, PPD-less CUPS printing
|
| 2021-08-13: |
Some of my views on using YAML for human-written configuration files
Prometheus alerts and the idea of "deadbands" (or maybe hysteresis) (with an implementation)
Learning that Vim has insert mode keystrokes that do special things
Go keeps surprising me with its careful design and specification
|
| 2021-08-12: |
Prometheus, Alertmanager, and maybe avoiding flapping alerts
|
| 2021-08-11: |
The meaning of "hysteresis" and how it relates to alerts
|
| 2021-08-09: |
The Firefox uMatrix addon is not quite dead (so far)
|
| 2021-08-08: |
The xterm terminal emulator can do a lot more than just display text
|
| 2021-08-07: |
Some thoughts on new top-level domains being used for spam
|
| 2021-08-06: |
Some bits of how Bash and GNU Readline's "bracketed paste" mode behaves
|
| 2021-08-05: |
Using journalctl's ability to show only one service
|
| 2021-08-04: |
I have mixed views on new DNS top level domains (TLDs)
When you do and don't get stuck query results from a down Prometheus
|
| 2021-08-02: |
Anonymous ("transparent") structures are a good thing in programming languages
|
| 2021-08-01: |
Unix APIs are where I first saw C #define used to rename struct fields
|
| 2021-07-31: |
Learning that you can use unions in C for grouping things into namespaces
|
| 2021-07-30: |
Hardware and (Linux) driver quality can be invisible to non-specialists
XHTML pages cause problems for some Firefox addons
|
| 2021-07-29: |
How Go maps store their values (and keys)
|
| 2021-07-28: |
Modern email is hard to search, which encourages locked up silos
|
| 2021-07-26: |
Understanding plain Linux NVMe device names (in /dev and kernel messages)
|
| 2021-07-25: |
I should probably learn command-line NetworkManager usage
The tiny irritation of ZFS's 'zpool status' nagging you about upgrades
|
| 2021-07-23: |
Why it matters that map values are unaddressable in Go
|
| 2021-07-22: |
Apache's mod_wsgi and the Python 2 issue it creates
Improving my web reading with Martin Tournoij's "readable" Firefox bookmarklet
|
| 2021-07-21: |
It's nice when programs switch to being launched from systemd user units
|
| 2021-07-19: |
Making a Go program build with Go modules can be not a small change
|
| 2021-07-18: |
On sending all syslog messages to one file
|
| 2021-07-17: |
The minimum for syslog configurations should be to log (nearly) everything
|
| 2021-07-16: |
The WireGuard VPN challenge of provisioning clients
Setting up a WireGuard client with NetworkManager (using nmcli)
|
| 2021-07-14: |
Making two Unix permissions mistakes in one
Some ways to get (or not get) information about system memory ranges on Linux
|
| 2021-07-12: |
Problems in the way of straightforward device naming in operating systems
Understanding something about udev's normal network device names on Linux
|
| 2021-07-10: |
Why Bash and GNU Readline's "bracketed paste" mode is not for us
University computer accounts are often surprisingly complicated
|
| 2021-07-08: |
Redirecting paths that start with two slashes in Apache
A semi-surprise with Python's urllib.parse and partial URLs
|
| 2021-07-07: |
The initramfs for old kernels can hide old versions of things
|
| 2021-07-06: |
Unused hardware in computers can now be distinctly inactive
|
| 2021-07-05: |
Losing track of part of our Amanda configuration and then recovering it
|
| 2021-07-04: |
Two ways to have Amanda always make full backups of a filesystem
|
| 2021-07-03: |
Some brief notes on turning Firefox bookmarklets into convenient buttons
|
| 2021-07-02: |
Dealing with CSS fixed position headers and footers in Firefox
|
| 2021-06-30: |
Giving your Linux network interfaces fixed names (under udevd and networkd)
|
| 2021-06-29: |
Monitoring the status of Linux network interfaces with Prometheus
|
| 2021-06-28: |
Be careful when matching on Ethernet addresses in systemd-networkd
I should keep track of what Python packages I install through pip
|
| 2021-06-27: |
Some notes on what's in Linux's /sys/class/net for network interface status
|
| 2021-06-26: |
Ethernet network cables can go bad over time, with odd symptoms
|
| 2021-06-25: |
A couple of Linux top-like programs for network traffic
|
| 2021-06-24: |
Go 1.17 is deprecating the traditional use of 'go get'
|
| 2021-06-22: |
I like WireGuard partly because it doesn't have 'sessions'
|
| 2021-06-21: |
A realization about our VPN and IPv6 traffic
Some notes on building Firefox from source on Ubuntu
|
| 2021-06-20: |
A bit on ZFS's coming raidz expansion and ZFS DVAs
|
| 2021-06-19: |
The Unix background of Linux's 'file-max' and nr_open kernel limits on file descriptors
|
| 2021-06-17: |
Apache directory indexes will notice and exclude blocked URLs in them
In Prometheus queries, on and ignoring don't drop labels from the result
|
| 2021-06-16: |
The challenge of what to set server BIOSes to do on power loss
|
| 2021-06-14: |
Some notes on Firefox's media autoplay settings as of Firefox 89
|
| 2021-06-13: |
A strong commitment to backwards compatibility means keeping your mistakes
Rust 1.x seems to not always be backward compatible in practice
|
| 2021-06-11: |
How we're dealing with our expiring OpenVPN TLS root certificate
TLS certificate durations turn out to be complicated and subtle
|
| 2021-06-10: |
Early notes on using the new python-lsp-server (pylsp) in GNU Emacs
|
| 2021-06-09: |
The modern web design aesthetic of hiding visited links
|
| 2021-06-07: |
My failure to arrange a graceful TLS root certificate rollover with OpenVPN
|
| 2021-06-06: |
TLS certificates have at least two internal representations of time
The case of the very old If-Modified-Since HTTP header
|
| 2021-06-04: |
HTTP/3 needs us (and other people) to make firewall changes
New versions of Bash (and readline) default to special handling of pasting into the shell (or other programs)
|
| 2021-06-02: |
Fedora co-mingles its source packages with Red Hat Enterprise Linux
Simple use of Let's Encrypt on OpenBSD is pleasantly straightforward (as of 6.8)
|
| 2021-05-31: |
It'd be useful if TLS libraries had better and more detailed error messages
I've come to like date-based names for log rotation
|
| 2021-05-30: |
Go 1.17 will still support the old GOPATH mode (as well as modules)
|
| 2021-05-28: |
Less can filter what it shows to you (a thing I recently learned)
|
| 2021-05-27: |
Some thoughts on having set up a personal Alertmanager instance
Being able to see links I've visited in Firefox is startlingly better
|
| 2021-05-26: |
Working around an AMDGPU automatic fan control problem on my Radeon RX 550
|
| 2021-05-24: |
Rust is a wave of the future
Why we don't have management connections to our switches (an old story)
|
| 2021-05-23: |
Our three generations of network implementations (over the time I've been here)
|
| 2021-05-22: |
I don't know how much memory our Prometheus setup needs
|
| 2021-05-20: |
The temptation to start using some Python type hints
|
| 2021-05-19: |
Fedora has significantly fumbled DKMS handling for Linux kernel modules
Speculating on why DKMS and other Linux things are large shell scripts
|
| 2021-05-17: |
Unix job control has some dark corners and challenging cases, illustrated
|
| 2021-05-16: |
Unix job control and its interactions with TTYs (and shells)
|
| 2021-05-15: |
Downsampling your metrics data is a compromise (what we could call a 'hack')
The size of our Prometheus setup as of May 2021
|
| 2021-05-14: |
The Bourne shell and Bash aren't the right languages for larger programs
|
| 2021-05-12: |
The Bourne shell lets you set variables in if expressions
Firefox and the challenge of trying to make visited links clearly visible
|
| 2021-05-10: |
Errors during SMTP conversations aren't trustworthy, illustrated
|
| 2021-05-09: |
DKMS built one of my kernel modules for the wrong kernel
Storing ZFS send streams is not a good backup method
|
| 2021-05-08: |
It's pleasantly easy to install PyPy yourself (from their binaries)
|
| 2021-05-07: |
Understanding OpenSSH's various options around keys and key algorithms
|
| 2021-05-06: |
The different types of modern (2021) SSH keys (and some opinions)
|
| 2021-05-05: |
It's possible for Firefox to forget about:config preferences you've set
|
| 2021-05-03: |
Our future upgrade wave of Ubuntu 18.04 machines
Understanding OpenSSH's future deprecation of the 'ssh-rsa' signature scheme
|
| 2021-05-02: |
Realizing one general way to construct symmetric ciphers
|
| 2021-04-30: |
Discovering outside people attempting to do dynamic DNS updates to us
There's plenty of our work that's not being done from home
|
| 2021-04-29: |
The shift from "two factor" to "multi-factor" authentication
|
| 2021-04-28: |
Firefox's slow takeover of the address bar's space
|
| 2021-04-26: |
The question of how to do non-annoying multi-factor authentication for SSH
Maybe a local, on-machine caching DNS resolver should be standard (for us)
|
| 2021-04-25: |
The question of having SATA drives behind modern SAS expanders
|
| 2021-04-24: |
Why people care about SAS despite not being 'enterprise'
|
| 2021-04-23: |
How I want to use pip with PyPy to install third party programs
|
| 2021-04-21: |
Go 1.17 will allow converting a slice to an array pointer (some of the time)
|
| 2021-04-20: |
PyPy starts fast enough for our Python 2 commands
|
| 2021-04-19: |
Trying out learning more Vim on demand
|
| 2021-04-18: |
Using NVMe SSDs over SATA SSDs in basic servers is an awkward sales pitch
My view of Wayland here in 2021
|
| 2021-04-16: |
A Firefox surprise from disabling dom.event.clipboardevents.enabled
|
| 2021-04-15: |
Learning about the idea of the HTTP self-post
Link: "a2d<C-V>3gE: Vim normal mode grammar
|
| 2021-04-14: |
Some things on ZFS (on Linux) per-dataset basic IO statistics
|
| 2021-04-13: |
Getting NVMe and related terminology straight (for once)
|
| 2021-04-12: |
SSD versus NVMe for basic servers today (in early 2021)
Counting how many times something started or stopped failing in Prometheus
|
| 2021-04-11: |
Vendors put varied and peculiar things in system DMI information
|
| 2021-04-09: |
Why NFS servers generally have a 'reply cache'
What NFSv3 operations can be in the Linux nfsd reply cache
|
| 2021-04-07: |
Rust's rustup tool is surprisingly nice and well behaved
|
| 2021-04-06: |
Modern Linux can require a link signal before it configures IP addresses
|
| 2021-04-05: |
A stable Unix updating its version of Go isn't straightforward
|
| 2021-04-04: |
Some uses for Prometheus's resets() function
You need a version of Go with module support (ideally good support)
|
| 2021-04-02: |
ZFS on Linux is improving the handling of disk names on import
Programs that read IPMI sensors tell you subtly different things
|
| 2021-03-31: |
Understanding Prometheus' changes() function and what it can do for me
Systemd's NSS myhostname module surprised me recently
|
| 2021-03-29: |
Nil in Go is typed in theory and sort of untyped in practice
|
| 2021-03-28: |
What tool you use to read IPMI sensor information can matter
|
| 2021-03-27: |
Internet routing can now vary based on things you wouldn't expect
The attractions of reading sensor information from IPMIs
|
| 2021-03-26: |
Linux's hardware monitoring can lie to you
|
| 2021-03-24: |
HTTPS is really multiple protocols these days
|
| 2021-03-23: |
Discovering Vim's Visual (selection) mode
|
| 2021-03-22: |
Portability has ongoing costs for code that's changing
|
| 2021-03-21: |
My uncertainty about swapping and swap sizing for SSDs and NVMe drives
My experience with x2go is that it's okay but not compelling
|
| 2021-03-20: |
Paging out memory can be 'global' or 'local' these days
|
| 2021-03-19: |
Remote X versus 'seamless windows' in remote desktop software
|
| 2021-03-18: |
Safari is now probably the influential wild card browser for user privacy
|
| 2021-03-17: |
Remote X has been a life saver over this past year
|
| 2021-03-16: |
The fading HTTP Referer header and (Google) Search paywall bypasses
|
| 2021-03-15: |
Different views of what are basic and advanced Vim features
|
| 2021-03-14: |
I wish Prometheus had some features to deal with 'missing' metrics
|
| 2021-03-13: |
Prometheus and the case of the stuck metrics
|
| 2021-03-11: |
Wrangling HTTP and HTTPS versions of the same Apache virtual host
What OpenSSH sshd logs when a session disconnects (on Linux)
|
| 2021-03-10: |
The tradeoffs of Go version behavior in go.mod module files
|
| 2021-03-09: |
Go version directives in go.mod files: some notes and crude usage numbers
|
| 2021-03-08: |
Packaging Python 2 doesn't mean that Linux distributions support it
|
| 2021-03-06: |
Some views and notes on ZFS deduplication today
|
| 2021-03-05: |
How not to use Apache's RewriteRule directive in a reverse proxy
|
| 2021-03-04: |
Systemd needs (or could use) a linter for unit files
|
| 2021-03-03: |
What signal a RJ-45 serial connection is (probably) missing
|
| 2021-03-02: |
The Python ctypes security issue and Python 2
|
| 2021-03-01: |
Link: Taking This Serially
The balance of power between distributions and software authors
|
| 2021-02-28: |
Dot-separated DNS name components aren't even necessarily subdomains, illustrated
|
| 2021-02-27: |
My Firefox addons as of Firefox 86 (and the current development version)
My pragmatic sysadmin view on subdomains and DNS zones
|
| 2021-02-25: |
The HTTP Referer header is fading away (at least as a useful thing)
|
| 2021-02-24: |
How convenience in Prometheus labels for alerts led me into a quiet mistake
How (and where) Prometheus alerts get their labels
|
| 2021-02-22: |
The mhbuild directives I want for sending MIME attachments with MH
How I set up testing alerts in our Prometheus environment
|
| 2021-02-20: |
Modern software controls dependencies because it helps software authors
|
| 2021-02-19: |
ZFS pool partial (selective) feature upgrades are coming in OpenZFS
|
| 2021-02-18: |
Understanding what 'systemctl restart' means and when I want to use it
|
| 2021-02-17: |
TLS certificates specifying hosts via their CommonName field is more or less gone
When browsers (or at least Firefox) send HTTP Basic Authentication headers
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| 2021-02-15: |
How ZFS on Linux brings up pools and filesystems at boot under systemd
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| 2021-02-14: |
Some observed read latencies for SSDs and NVMe drives under Fedora 32
Link: What was the original reason for the design of AT&T assembly syntax?
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| 2021-02-13: |
Where the default values for Python function arguments are stored
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| 2021-02-12: |
An interesting issue around using is with a literal in Python
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| 2021-02-11: |
Getting high IOPS requires concurrency on modern SSDs and NVMe drives
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| 2021-02-10: |
Let's Encrypt is preparing for an emergency and that's good for TLS in general
The issue of IOPS versus latency on SSDs and NVMe drives
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| 2021-02-09: |
Normal situations should not be warnings (especially not repeated ones)
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| 2021-02-07: |
Strict SameSite web cookie policies probably don't do much for us
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| 2021-02-06: |
Talkd and 'mesg n': a story from the old Unix days
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| 2021-02-05: |
Limiting what branches I track from an upstream Git repository
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| 2021-02-04: |
There are limitations to what expendable addresses can help with
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| 2021-02-03: |
Junk email as a cover for more nefarious things
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| 2021-02-02: |
The small oddity in the Unix exec*() family
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| 2021-02-01: |
Go 1.16 will make system calls through libc on OpenBSD
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| 2021-01-31: |
The limitations on find's -exec option and implementation convenience
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| 2021-01-30: |
I wish every program that wanted 'a SQL database' would let me use SQLite
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| 2021-01-29: |
Illustrating the importance of fully multi-core program building today
Forecasting drive failures is not always as useful as it sounds
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| 2021-01-27: |
Making tracking upstream Git repositories a bit quieter
find mostly doesn't need xargs today on modern Unixes
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| 2021-01-25: |
Time for Python 2 users to make sure we have a copy of Pip and other pieces
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| 2021-01-24: |
Your monitoring and alerts remember things for you
Thinking through what can go badly with databases on ZFS
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| 2021-01-22: |
SMART Threshold numbers turn out to not be useful for us in practice
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| 2021-01-21: |
A lingering sign of old hopes for ZFS deduplication
Real email has MIME attachments that are HTML
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| 2021-01-20: |
A realization about the Linux CPU pressure stall information
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| 2021-01-18: |
Where Firefox's text encoding menus are
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| 2021-01-17: |
Password managers automate checking the website address for you
One reason to not trust SMART attribute data for consumer drives
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| 2021-01-15: |
SMART attributes can predict SSD failures under the right circumstances
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| 2021-01-14: |
Understanding WireGuard's AllowedIPs setting (and a bit of tcpdump)
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| 2021-01-13: |
Installing Pip in Python 2 environments that don't provide it already
What you can and can't build in Go's module mode
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| 2021-01-11: |
How to make Bash fail badly on Ubuntu 16.04 by typo'ing a command name
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| 2021-01-10: |
Thinking through why you shouldn't use plaintext passwords in authentication, even inside TLS
What timestamps you get back along with Prometheus query results
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| 2021-01-08: |
How to extract raw time series data from Prometheus
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| 2021-01-07: |
I got to experience the march of storage technology today
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| 2021-01-06: |
In modern email, it's easy for plaintext and HTML parts to drift apart
Link: ARM support in Linux distributions demystified
Unix shell pipelines have two usage patterns
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| 2021-01-05: |
TLS Certificate Authority root certificate expiry dates are not how trust in them is managed
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| 2021-01-03: |
TLS Certificate Authority root certificates and their dates
The modern web and (alleged) software stagnation in the past few decades
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| 2021-01-01: |
An interesting and puzzling bit of Linux server utilization
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