Sheridan Computers
@sheridan.co.uk
October 29, 2025 at 7:16 PM
A few years ago, cybersecurity felt like a big-business problem.
Not anymore.
Most attacks we respond to now start with something small - a remote employee’s unpatched laptop, or an old remote-access tool left open.
#SmallBusiness #ITSupport #Manchester
Not anymore.
Most attacks we respond to now start with something small - a remote employee’s unpatched laptop, or an old remote-access tool left open.
#SmallBusiness #ITSupport #Manchester
October 21, 2025 at 3:26 AM
A few years ago, cybersecurity felt like a big-business problem.
Not anymore.
Most attacks we respond to now start with something small - a remote employee’s unpatched laptop, or an old remote-access tool left open.
#SmallBusiness #ITSupport #Manchester
Not anymore.
Most attacks we respond to now start with something small - a remote employee’s unpatched laptop, or an old remote-access tool left open.
#SmallBusiness #ITSupport #Manchester
Do you think Microsoft will eventually charge a subscription for Windows?
With Windows 11 becoming increasingly locked down, the company’s clear shift towards recurring revenue through Microsoft 365, Copilot, and other cloud-based services, it’s fair to ask.
#Microsoft #Windows
With Windows 11 becoming increasingly locked down, the company’s clear shift towards recurring revenue through Microsoft 365, Copilot, and other cloud-based services, it’s fair to ask.
#Microsoft #Windows
October 11, 2025 at 5:35 PM
Do you think Microsoft will eventually charge a subscription for Windows?
With Windows 11 becoming increasingly locked down, the company’s clear shift towards recurring revenue through Microsoft 365, Copilot, and other cloud-based services, it’s fair to ask.
#Microsoft #Windows
With Windows 11 becoming increasingly locked down, the company’s clear shift towards recurring revenue through Microsoft 365, Copilot, and other cloud-based services, it’s fair to ask.
#Microsoft #Windows
Do we really need a month for cybersecurity awareness? There are 11 other months worth protecting too.
Hackers aren't just active in October.
#HackersDontTakeHolidays #EveryMonthIsCyberMonth #CyberSecurity #CyberSecurityAwarenessMonth
Hackers aren't just active in October.
#HackersDontTakeHolidays #EveryMonthIsCyberMonth #CyberSecurity #CyberSecurityAwarenessMonth
October 6, 2025 at 3:21 PM
Do we really need a month for cybersecurity awareness? There are 11 other months worth protecting too.
Hackers aren't just active in October.
#HackersDontTakeHolidays #EveryMonthIsCyberMonth #CyberSecurity #CyberSecurityAwarenessMonth
Hackers aren't just active in October.
#HackersDontTakeHolidays #EveryMonthIsCyberMonth #CyberSecurity #CyberSecurityAwarenessMonth
Finally acquired our .com domain and built a new, proper GDPR compliance + UX overlays.
Perfect PageSpeed scores: ✅
Completely invisible to Google: ✅
6 months later, can't even find us searching our exact company name.
I'm an IT security expert who made my site more secure than Google could handle 🙃
Perfect PageSpeed scores: ✅
Completely invisible to Google: ✅
6 months later, can't even find us searching our exact company name.
I'm an IT security expert who made my site more secure than Google could handle 🙃
September 19, 2025 at 3:14 AM
Finally acquired our .com domain and built a new, proper GDPR compliance + UX overlays.
Perfect PageSpeed scores: ✅
Completely invisible to Google: ✅
6 months later, can't even find us searching our exact company name.
I'm an IT security expert who made my site more secure than Google could handle 🙃
Perfect PageSpeed scores: ✅
Completely invisible to Google: ✅
6 months later, can't even find us searching our exact company name.
I'm an IT security expert who made my site more secure than Google could handle 🙃
Just hit a new milestone 🚀
Published my first #npm package!
Built for MailMARC’s Learning Centre → realised it could help others.
📚 React course viewer
✅ Markdown lessons
✅ Progress tracking
✅ TypeScript + React 18/19
👉 mailmarc.net
#OpenSource #React #TypeScript #MailMARC #Learning
Published my first #npm package!
Built for MailMARC’s Learning Centre → realised it could help others.
📚 React course viewer
✅ Markdown lessons
✅ Progress tracking
✅ TypeScript + React 18/19
👉 mailmarc.net
#OpenSource #React #TypeScript #MailMARC #Learning
September 11, 2025 at 5:40 PM
Just hit a new milestone 🚀
Published my first #npm package!
Built for MailMARC’s Learning Centre → realised it could help others.
📚 React course viewer
✅ Markdown lessons
✅ Progress tracking
✅ TypeScript + React 18/19
👉 mailmarc.net
#OpenSource #React #TypeScript #MailMARC #Learning
Published my first #npm package!
Built for MailMARC’s Learning Centre → realised it could help others.
📚 React course viewer
✅ Markdown lessons
✅ Progress tracking
✅ TypeScript + React 18/19
👉 mailmarc.net
#OpenSource #React #TypeScript #MailMARC #Learning
Tribute or sin: rewriting #tinydns in #Rust
My biggest achievement and my biggest failure, all in one.
Not a choice, lack of options. Distros dropped it, even though it spent 20 years on the internet without a single security issue - who else can claim that?
#tinydns #djbdns #rust #freebsd #linux
My biggest achievement and my biggest failure, all in one.
Not a choice, lack of options. Distros dropped it, even though it spent 20 years on the internet without a single security issue - who else can claim that?
#tinydns #djbdns #rust #freebsd #linux
September 6, 2025 at 10:05 PM
My own #DNS validation tool just humbled me - anyone can make mistakes! 🚨
My validation tool found 8 critical errors hiding for 10 years. 💩
It started as #tinydns / #djbdns to #BIND converter, evolved to a bidirectional conversion & validation tool.
Launching #TinyMan as #OpenSource soon...
My validation tool found 8 critical errors hiding for 10 years. 💩
It started as #tinydns / #djbdns to #BIND converter, evolved to a bidirectional conversion & validation tool.
Launching #TinyMan as #OpenSource soon...
September 4, 2025 at 11:34 PM
The best part of producing helpful content is knowing you did something that helped someone!l somewhere - even if it's just one person.
Tech tutorial channels can be hard, no point in shitty click bait titles.
Appreciate each and every one of you <3
#YouTube #TechGuides #OpenSource
Tech tutorial channels can be hard, no point in shitty click bait titles.
Appreciate each and every one of you <3
#YouTube #TechGuides #OpenSource
August 23, 2025 at 7:26 PM
The best part of producing helpful content is knowing you did something that helped someone!l somewhere - even if it's just one person.
Tech tutorial channels can be hard, no point in shitty click bait titles.
Appreciate each and every one of you <3
#YouTube #TechGuides #OpenSource
Tech tutorial channels can be hard, no point in shitty click bait titles.
Appreciate each and every one of you <3
#YouTube #TechGuides #OpenSource
Hot take: Lots of “Windows 11 nukes SSDs” posts. We manage 1,000+ devices and 0 incidents.
Could be a niche edge case; could be hype. We’re still patching, keeping backups, and watching for credible vendor/Microsoft guidance. What’s your real-world telemetry saying?
#Windows11 #MSP #PatchTuesday
Could be a niche edge case; could be hype. We’re still patching, keeping backups, and watching for credible vendor/Microsoft guidance. What’s your real-world telemetry saying?
#Windows11 #MSP #PatchTuesday
August 19, 2025 at 9:25 PM
Hot take: Lots of “Windows 11 nukes SSDs” posts. We manage 1,000+ devices and 0 incidents.
Could be a niche edge case; could be hype. We’re still patching, keeping backups, and watching for credible vendor/Microsoft guidance. What’s your real-world telemetry saying?
#Windows11 #MSP #PatchTuesday
Could be a niche edge case; could be hype. We’re still patching, keeping backups, and watching for credible vendor/Microsoft guidance. What’s your real-world telemetry saying?
#Windows11 #MSP #PatchTuesday
Controlling #Windows from #Linux - boom! 💥
Finally managed to get this #ScreenConnect alternative to compile on Windows with full Nvidia hardware encoding via #ffmpeg.
Maybe we will get an open source tool! This is capturing 4K, fullscreen #YouTube video complete with #NerdStats
Mac next? 😁
Finally managed to get this #ScreenConnect alternative to compile on Windows with full Nvidia hardware encoding via #ffmpeg.
Maybe we will get an open source tool! This is capturing 4K, fullscreen #YouTube video complete with #NerdStats
Mac next? 😁
August 13, 2025 at 7:41 PM
Controlling #Windows from #Linux - boom! 💥
Finally managed to get this #ScreenConnect alternative to compile on Windows with full Nvidia hardware encoding via #ffmpeg.
Maybe we will get an open source tool! This is capturing 4K, fullscreen #YouTube video complete with #NerdStats
Mac next? 😁
Finally managed to get this #ScreenConnect alternative to compile on Windows with full Nvidia hardware encoding via #ffmpeg.
Maybe we will get an open source tool! This is capturing 4K, fullscreen #YouTube video complete with #NerdStats
Mac next? 😁
If I can pull off an #OpenSource #RMM, and an open source remote access tool, this will change the way vendors (ex car-sales) farm #MSPs.
The remote access thing forced my hand. But, the RMM can launch it on demand, and terminate it when done - no 24/7 always on.
Nothing commercial or free does it
The remote access thing forced my hand. But, the RMM can launch it on demand, and terminate it when done - no 24/7 always on.
Nothing commercial or free does it
August 12, 2025 at 9:26 PM
If I can pull off an #OpenSource #RMM, and an open source remote access tool, this will change the way vendors (ex car-sales) farm #MSPs.
The remote access thing forced my hand. But, the RMM can launch it on demand, and terminate it when done - no 24/7 always on.
Nothing commercial or free does it
The remote access thing forced my hand. But, the RMM can launch it on demand, and terminate it when done - no 24/7 always on.
Nothing commercial or free does it
Didn’t See This Coming… 👀
I started uploading to YouTube thinking it might help someone; if not, at least it’d help me remember how I fixed something.
#YouTube #Tech #VideoTutorials #Sheridans
I started uploading to YouTube thinking it might help someone; if not, at least it’d help me remember how I fixed something.
#YouTube #Tech #VideoTutorials #Sheridans
August 5, 2025 at 8:32 PM
Didn’t See This Coming… 👀
I started uploading to YouTube thinking it might help someone; if not, at least it’d help me remember how I fixed something.
#YouTube #Tech #VideoTutorials #Sheridans
I started uploading to YouTube thinking it might help someone; if not, at least it’d help me remember how I fixed something.
#YouTube #Tech #VideoTutorials #Sheridans
Asked an AI coding assistant what it thought about running a remote desktop relay in a FreeBSD jail using quic, ephemeral ports, magic packets, and dynamic PF firewall rules.
It's response...
#FreeBSD #RustScreen #Quic #CyberSecurity #ScreenConnect #OpenSource
It's response...
#FreeBSD #RustScreen #Quic #CyberSecurity #ScreenConnect #OpenSource
July 23, 2025 at 8:44 PM
Asked an AI coding assistant what it thought about running a remote desktop relay in a FreeBSD jail using quic, ephemeral ports, magic packets, and dynamic PF firewall rules.
It's response...
#FreeBSD #RustScreen #Quic #CyberSecurity #ScreenConnect #OpenSource
It's response...
#FreeBSD #RustScreen #Quic #CyberSecurity #ScreenConnect #OpenSource
July 16, 2025 at 11:57 PM
Recent reliability and security hiccups around #ScreenConnect got me thinking: could we build something leaner, safer, and open?
Last night I spun up a proof-of-concept in #Rust (screenshot below).
If I'm developing an #OpenSource #RMM on Rust, seems next logical step.
Last night I spun up a proof-of-concept in #Rust (screenshot below).
If I'm developing an #OpenSource #RMM on Rust, seems next logical step.
July 11, 2025 at 4:56 PM
Recent reliability and security hiccups around #ScreenConnect got me thinking: could we build something leaner, safer, and open?
Last night I spun up a proof-of-concept in #Rust (screenshot below).
If I'm developing an #OpenSource #RMM on Rust, seems next logical step.
Last night I spun up a proof-of-concept in #Rust (screenshot below).
If I'm developing an #OpenSource #RMM on Rust, seems next logical step.
I don’t take numbers too seriously, but if even one of those views helped one person overcome a challenge, fix a problem, or feel a bit less stuck, that’s more than enough for me.
July 9, 2025 at 8:14 PM
I don’t take numbers too seriously, but if even one of those views helped one person overcome a challenge, fix a problem, or feel a bit less stuck, that’s more than enough for me.
For goodness sake, if your business email is compromised - inform your clients!
We just called a company to inform them; they had known for days?! Ugh
Be responsible, be accountable, protect your clients.
#Phishing #BEC #Business #Email #Cybersecurity
We just called a company to inform them; they had known for days?! Ugh
Be responsible, be accountable, protect your clients.
#Phishing #BEC #Business #Email #Cybersecurity
June 27, 2025 at 10:22 AM
For goodness sake, if your business email is compromised - inform your clients!
We just called a company to inform them; they had known for days?! Ugh
Be responsible, be accountable, protect your clients.
#Phishing #BEC #Business #Email #Cybersecurity
We just called a company to inform them; they had known for days?! Ugh
Be responsible, be accountable, protect your clients.
#Phishing #BEC #Business #Email #Cybersecurity
Milestone for #Willow #RMM:
After weeks in the #Rust backend, the agent/server architecture is solid.
Now the React + Vite frontend begins, first time anything visual.
This is where shit gets real for the #MSL space.
#OpenSource #React #ITSupport #ThisIsHappening #ShakingItUp
After weeks in the #Rust backend, the agent/server architecture is solid.
Now the React + Vite frontend begins, first time anything visual.
This is where shit gets real for the #MSL space.
#OpenSource #React #ITSupport #ThisIsHappening #ShakingItUp
June 12, 2025 at 7:40 PM
Milestone for #Willow #RMM:
After weeks in the #Rust backend, the agent/server architecture is solid.
Now the React + Vite frontend begins, first time anything visual.
This is where shit gets real for the #MSL space.
#OpenSource #React #ITSupport #ThisIsHappening #ShakingItUp
After weeks in the #Rust backend, the agent/server architecture is solid.
Now the React + Vite frontend begins, first time anything visual.
This is where shit gets real for the #MSL space.
#OpenSource #React #ITSupport #ThisIsHappening #ShakingItUp
We maybe the smallest #MSP Netgate, pfSense (or anyone else) has ever heard of, carry on pissing me off.
I contributed the shit you hide behind a paywall that's part of #freebsd to your biggest competitor #OPNsense, for free, and the @tailscale.com plugin.
Last chance. ¯\_(ツ)_/¯
I contributed the shit you hide behind a paywall that's part of #freebsd to your biggest competitor #OPNsense, for free, and the @tailscale.com plugin.
Last chance. ¯\_(ツ)_/¯
June 6, 2025 at 8:59 PM
We maybe the smallest #MSP Netgate, pfSense (or anyone else) has ever heard of, carry on pissing me off.
I contributed the shit you hide behind a paywall that's part of #freebsd to your biggest competitor #OPNsense, for free, and the @tailscale.com plugin.
Last chance. ¯\_(ツ)_/¯
I contributed the shit you hide behind a paywall that's part of #freebsd to your biggest competitor #OPNsense, for free, and the @tailscale.com plugin.
Last chance. ¯\_(ツ)_/¯
You have to love Netgate owners behaviour on Reddit.
Spent 2 hours covering pfSense 2.8 release to get the 🖕. Checkout the video, if you see nothing wrong, a great reason to checkout @opnsense.org
#pfsense #opnsense #freebsd #opensource
Spent 2 hours covering pfSense 2.8 release to get the 🖕. Checkout the video, if you see nothing wrong, a great reason to checkout @opnsense.org
#pfsense #opnsense #freebsd #opensource
June 6, 2025 at 2:10 AM
You have to love Netgate owners behaviour on Reddit.
Spent 2 hours covering pfSense 2.8 release to get the 🖕. Checkout the video, if you see nothing wrong, a great reason to checkout @opnsense.org
#pfsense #opnsense #freebsd #opensource
Spent 2 hours covering pfSense 2.8 release to get the 🖕. Checkout the video, if you see nothing wrong, a great reason to checkout @opnsense.org
#pfsense #opnsense #freebsd #opensource
Working on a self-documenting command registry for my Rust-based RMM.
Every command has descriptions, args, examples — all in code.
Single source of truth → docs, API, UI, all in sync.
Screenshot says the rest. 🦀
Every command has descriptions, args, examples — all in code.
Single source of truth → docs, API, UI, all in sync.
Screenshot says the rest. 🦀
May 31, 2025 at 7:30 PM
Working on a self-documenting command registry for my Rust-based RMM.
Every command has descriptions, args, examples — all in code.
Single source of truth → docs, API, UI, all in sync.
Screenshot says the rest. 🦀
Every command has descriptions, args, examples — all in code.
Single source of truth → docs, API, UI, all in sync.
Screenshot says the rest. 🦀
first rust crate out in the wild:
windows-dpapi, a minimal safe wrapper for windows' built-in encryption (DPAPI)
store secrets tied to the machine, no extra deps, just works
wrote it for my RMM project (Willow)
docs: docs.rs/windows-dpapi
code: github.com/sheridans/wi...
#rust #opensource
windows-dpapi, a minimal safe wrapper for windows' built-in encryption (DPAPI)
store secrets tied to the machine, no extra deps, just works
wrote it for my RMM project (Willow)
docs: docs.rs/windows-dpapi
code: github.com/sheridans/wi...
#rust #opensource
May 20, 2025 at 7:13 AM
first rust crate out in the wild:
windows-dpapi, a minimal safe wrapper for windows' built-in encryption (DPAPI)
store secrets tied to the machine, no extra deps, just works
wrote it for my RMM project (Willow)
docs: docs.rs/windows-dpapi
code: github.com/sheridans/wi...
#rust #opensource
windows-dpapi, a minimal safe wrapper for windows' built-in encryption (DPAPI)
store secrets tied to the machine, no extra deps, just works
wrote it for my RMM project (Willow)
docs: docs.rs/windows-dpapi
code: github.com/sheridans/wi...
#rust #opensource
RMM agents aren’t just tools — they’re targets.
I built Willow, a secure-by-default RMM agent:
👉 Single static Rust binary
👉 No DLLs, no side-loading
👉 Open source at MVP
Security must be built in — not bolted on.
#RustLang #CyberSecurity #RMM #Infosec
I built Willow, a secure-by-default RMM agent:
👉 Single static Rust binary
👉 No DLLs, no side-loading
👉 Open source at MVP
Security must be built in — not bolted on.
#RustLang #CyberSecurity #RMM #Infosec
May 17, 2025 at 7:48 PM
RMM agents aren’t just tools — they’re targets.
I built Willow, a secure-by-default RMM agent:
👉 Single static Rust binary
👉 No DLLs, no side-loading
👉 Open source at MVP
Security must be built in — not bolted on.
#RustLang #CyberSecurity #RMM #Infosec
I built Willow, a secure-by-default RMM agent:
👉 Single static Rust binary
👉 No DLLs, no side-loading
👉 Open source at MVP
Security must be built in — not bolted on.
#RustLang #CyberSecurity #RMM #Infosec
Benchmarking Willow (my open source RMM) against comnercial vendors...
If Willow is 7MB, statically compiled, signed, and fully functional as an RMM agent, then wtf are other vendors doing with that extra 90–200MB+?
#RMM #OpenSource #MSP #Willow
If Willow is 7MB, statically compiled, signed, and fully functional as an RMM agent, then wtf are other vendors doing with that extra 90–200MB+?
#RMM #OpenSource #MSP #Willow
May 16, 2025 at 7:16 PM
Benchmarking Willow (my open source RMM) against comnercial vendors...
If Willow is 7MB, statically compiled, signed, and fully functional as an RMM agent, then wtf are other vendors doing with that extra 90–200MB+?
#RMM #OpenSource #MSP #Willow
If Willow is 7MB, statically compiled, signed, and fully functional as an RMM agent, then wtf are other vendors doing with that extra 90–200MB+?
#RMM #OpenSource #MSP #Willow