panosv
Joined 11 years ago
Karma
37
Submissions
42
Member since
Oct 10
Recent submissions
Comment · 6 months ago
Can we bring scroll bars back by default please?
Comment · 8 months ago
Everyone knows ping. But over the decades, the networking community has quietly built an entire family of specialized variants — each solving a problem that standard ICMP couldn't.
A few examples of why you'd reach for something else:
tcping — when firewalls eat your ICMP and you need to test port availability
arping — L2 diagnostics and duplicate IP detection, no IP stack needed
fping — scan a /24 in seconds, all hosts in parallel
OWAMP — when you actually need one-way latency, not just RTT
dnsping — when the slowness lives in your resolver, not the network
I put together a comparison table of the most useful ones, across protocol, OSI layer, platform, multi-host support, and root requirements. The OSI layer column alone tells you a lot — if you're reaching for ping to debug something that lives at L4 or L7, you're probably using the wrong tool.
Comment · 1 year ago
What about Google? Anyone has any insights on their unit economics since they own the models and the infrastructure (which is also custom TPUs)? Are they doing better or are they in the same money losing business?
Comment · 1 year ago
Can someone recommend a dongle that actually works? I’ve tried a few and they are highly unreliable or stop working after a few months.
Comment · 1 year ago
Great work! There are quite a few flavors of ping:
TCPPing: https://netbeez.net/blog/tcping/
vmPing: <https://netbeez.net/blog/how-to-use-vmping/>
DNSPing: <https://netbeez.net/blog/dnsping-linux/>
PathPing: <https://netbeez.net/blog/path-analysis-pathping-windows/>
fping: <https://netbeez.net/blog/linux-how-to-use-fping/>
gping: <https://netbeez.net/blog/linux-how-to-use-gping/>
prettyping: <https://netbeez.net/blog/linux-how-to-use-prettyping/>
Comment · 2 years ago
Lemurian Labs looks like it's doing something similar: https://www.lemurianlabs.com/technology They use the Logarithmic Number System (LNS)
Comment · 2 years ago
MacOS has now a built in dedicated tool called networkQuality that tries to capture these variables
https://netbeez.net/blog/measure-network-quality-on-macos/
Also take a look at Measurement Swiss Army-Knife (MSAK) https://netbeez.net/blog/msak/
Comment · 3 years ago
We had a discussion with one of Apple's moderators here: https://developer.apple.com/forums/thread/726713
If you have a better way to reach them, lmk.
Comment · 3 years ago
Not completely relevant, but another long standing bug: An 11 Year Old Bug in the macOS Popen(): https://news.ycombinator.com/item?id=37238433
Comment · 4 years ago
If you don't mind, which one is your start up?