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  1. #TechTipThursday

    The best time to learn a new Linux tool is when nothing is on fire.
    Pick one command you use often and go one level deeper this week.

    Already use grep? Try grep -r, grep -v, grep -E.
    Already use find? Add -exec to actually do something with the results.
    Already use systemctl? Try systemctl list-dependencies.

    You don't need a course. You need 20 minutes and a test machine. man is still the best documentation that exists.

    #Linux #SysAdmin #LearningLinux #TechTip

  2. #TechTipThursday

    The best time to learn a new Linux tool is when nothing is on fire.
    Pick one command you use often and go one level deeper this week.

    Already use grep? Try grep -r, grep -v, grep -E.
    Already use find? Add -exec to actually do something with the results.
    Already use systemctl? Try systemctl list-dependencies.

    You don't need a course. You need 20 minutes and a test machine. man is still the best documentation that exists.

    #Linux #SysAdmin #LearningLinux #TechTip

  3. Need to find a file fast on Linux?

    Search by name: find /path -name "filename"
    Search by content: grep -r "search term" /path
    Find recently modified files: find /path -mtime -1

    The file is there. You just have to know how to look.
    #TechTipThursday #Linux #SysAdmin #TechTip #OpenSource

  4. Need to find a file fast on Linux?

    Search by name: find /path -name "filename"
    Search by content: grep -r "search term" /path
    Find recently modified files: find /path -mtime -1

    The file is there. You just have to know how to look.
    #TechTipThursday #Linux #SysAdmin #TechTip #OpenSource

  5. Here are a few simple tips I’ve picked up over my years as a PC nerd. I wrote this before, but it was too long for my Mastodon account, so here it is as an bitmap. Tip: See the ALT text. :)

    You’ve probably read these rules somewhere. If not, you’ll find good tips here.

    You don’t have to do much to manage passwords... With my tips, anyone else can have or know your passwords, but they’ll be useless. Read why:

    #Passwords #CyberSecurity #PasswordManager #SecurityTips #TechTip #KeepItSimple

  6. Here are a few simple tips I’ve picked up over my years as a PC nerd. I wrote this before, but it was too long for my Mastodon account, so here it is as an bitmap. Tip: See the ALT text. :)

    You’ve probably read these rules somewhere. If not, you’ll find good tips here.

    You don’t have to do much to manage passwords... With my tips, anyone else can have or know your passwords, but they’ll be useless. Read why:

    #Passwords #CyberSecurity #PasswordManager #SecurityTips #TechTip #KeepItSimple

  7. Permissions are the backbone of Linux security. Know these cold:

    Add a user to a group: usermod -aG groupname username
    Check what groups a user belongs to: groups username
    Change file ownership: chown user:group filename

    "Just chmod 777 it" is not a permissions strategy. It's a cry for help.
    #Linux #SysAdmin #Permissions #TechTip #TechTipThursday

  8. Permissions are the backbone of Linux security. Know these cold:

    Add a user to a group: usermod -aG groupname username
    Check what groups a user belongs to: groups username
    Change file ownership: chown user:group filename

    "Just chmod 777 it" is not a permissions strategy. It's a cry for help.
    #Linux #SysAdmin #Permissions #TechTip #TechTipThursday

  9. Top Tech Tip!

    Your ICs will have a higher test pass rate if you test them as what they actually are, rather than what you thought you grabbed.

    (No, I didn't just test a bunch of MOSFETs as if they were power-monitoring chips. Shut up. No, *you* smell.)

    #hobby #electronics #DIY #TechTip #oops #brainfart

  10. Top Tech Tip!

    Your ICs will have a higher test pass rate if you test them as what they actually are, rather than what you thought you grabbed.

    (No, I didn't just test a bunch of MOSFETs as if they were power-monitoring chips. Shut up. No, *you* smell.)

    #hobby #electronics #DIY #TechTip #oops #brainfart

  11. Package management is one of those things every Linux admin should know cold.

    Search for a package: dnf search packagename
    Install it: dnf install packagename
    Check what's installed: rpm -qa | grep packagename
    Remove it cleanly: dnf remove packagename

    Your package manager is your best friend. Treat it accordingly.
    #Linux #SysAdmin #PackageManagement #TechTip #RHEL

  12. Package management is one of those things every Linux admin should know cold.

    Search for a package: dnf search packagename
    Install it: dnf install packagename
    Check what's installed: rpm -qa | grep packagename
    Remove it cleanly: dnf remove packagename

    Your package manager is your best friend. Treat it accordingly.
    #Linux #SysAdmin #PackageManagement #TechTip #RHEL

  13. #TechTipThursday
    Package management is one of those things every Linux admin should know cold.

    Search for a package:
    dnf search packagename

    Install it:
    dnf install packagename

    Check what's installed:
    rpm -qa | grep packagename

    Remove it cleanly:
    dnf remove packagename

    Your package manager is your best friend. Treat it accordingly.
    #Linux #SysAdmin #PackageManagement #TechTip #RHEL #RockyLinux

  14. #TechTipThursday
    Package management is one of those things every Linux admin should know cold.

    Search for a package:
    dnf search packagename

    Install it:
    dnf install packagename

    Check what's installed:
    rpm -qa | grep packagename

    Remove it cleanly:
    dnf remove packagename

    Your package manager is your best friend. Treat it accordingly.
    #Linux #SysAdmin #PackageManagement #TechTip #RHEL #RockyLinux

  15. SSH is how you get things done remotely. Know it cold.
    Connect to a remote host: ssh user@hostname
    Copy files securely: scp file.txt user@hostname:/path/
    Generate SSH keys: ssh-keygen -t ed25519

    Passwords are fine. Keys are better. Use keys.
    #Linux #SysAdmin #SSH #Security #TechTip #TechTipThursday

  16. SSH is how you get things done remotely. Know it cold.
    Connect to a remote host: ssh user@hostname
    Copy files securely: scp file.txt user@hostname:/path/
    Generate SSH keys: ssh-keygen -t ed25519

    Passwords are fine. Keys are better. Use keys.
    #Linux #SysAdmin #SSH #Security #TechTip #TechTipThursday

  17. #TechTipThursday

    Your Linux host is only as secure as you make it.
    Check who's logged in right now: who
    See open network connections: ss -tulnp

    Check for listening services you don't recognize:
    systemctl list-units --type=service --state=running

    If you can't explain why a service is running, that's your homework.
    #Linux #SysAdmin #Security #TechTip

  18. #TechTipThursday

    Your Linux host is only as secure as you make it.
    Check who's logged in right now: who
    See open network connections: ss -tulnp

    Check for listening services you don't recognize:
    systemctl list-units --type=service --state=running

    If you can't explain why a service is running, that's your homework.
    #Linux #SysAdmin #Security #TechTip

  19. Lock down user accounts on Linux before something else does.

    List failed login attempts: lastb
    Lock a user account: usermod -L username
    Force a password change at next login: chage -d 0 username

    Your servers are being probed right now. Act accordingly.
    #Linux #SysAdmin #Security #TechTip

  20. Lock down user accounts on Linux before something else does.

    List failed login attempts: lastb
    Lock a user account: usermod -L username
    Force a password change at next login: chage -d 0 username

    Your servers are being probed right now. Act accordingly.
    #Linux #SysAdmin #Security #TechTip


  21. I've just seen a IT video saying "I always leave the background as default."
    I always change the background & colours to my favourites.

    It has a side-benefit: occasionally I have seen a malicious pop-up window trying to get me to do something. It stands out because it's not in my colours

  22. Set a static IP on Linux:
    nmcli con mod "connection-name" ipv4.addresses 192.168.1.100/24
    nmcli con mod "connection-name" ipv4.gateway 192.168.1.1
    nmcli con mod "connection-name" ipv4.method manual
    nmcli con up "connection-name"

    Because "it gets an IP from DHCP" is fine...until it isn't.
    #Linux #SysAdmin #Networking #TechTip #

  23. Set a static IP on Linux:
    nmcli con mod "connection-name" ipv4.addresses 192.168.1.100/24
    nmcli con mod "connection-name" ipv4.gateway 192.168.1.1
    nmcli con mod "connection-name" ipv4.method manual
    nmcli con up "connection-name"

    Because "it gets an IP from DHCP" is fine...until it isn't.
    #Linux #SysAdmin #Networking #TechTip #

  24. Another chapter in my Linux snuppets series #4: Stop filling up your disk with temporary zip files. Here is how to stream a directory directly from one server to another using tar and SSH in a single pipeline.
    schulz.dk/2026/04/23/linux-sni

    #linux #tar #cli #terminal #tip #schulz.dk @blog #techtip

  25. Another chapter in my Linux snuppets series #4: Stop filling up your disk with temporary zip files. Here is how to stream a directory directly from one server to another using tar and SSH in a single pipeline.
    schulz.dk/2026/04/23/linux-sni

    #linux #tar #cli #terminal #tip #schulz.dk @blog #techtip

  26. Pas op met hulp van AI! 🤖

    Vandaag waarschuwt klachteninstituut Kifid: ze krijgen steeds meer klachten die door AI zijn geschreven, maar die staan vol fouten. 🤯

    Check dus altijd je bronnen! Vertrouw jij AI voor belangrijke zaken?

    #ChatGPT #TechTip

  27. Confused about which Linux distro to try? 🤔 It's not about finding the "best," it's about finding the *right* one for *you*. New video explores how to pick a distro that fits your workflow! Check it out 💻 #Linux #LinuxDistro #TechTip

    youtube.com/watch?v=KIMF8J1a9qw

  28. You DID NOT restart your electronic device… And it's not your fault.

    Flea Power Release:
    - Shutdown the device.
    - Unplug the device or remove the battery.
    - Press the power button again.

    That will fully shutdown your electronic device.
    #Techtip

  29. You DID NOT restart your electronic device… And it's not your fault.

    Flea Power Release:
    - Shutdown the device.
    - Unplug the device or remove the battery.
    - Press the power button again.

    That will fully shutdown your electronic device.
    #Techtip

  30. Bye bye, app-chaos! 👋

    Vandaag is de dag! Je kunt nu via WhatsApp berichten sturen naar andere chat-apps. 🤯

    Dit is verplicht door nieuwe EU-regels en de eerste koppeling is live. Nooit meer switchen om ál je vrienden te bereiken!

    Welke app moet volgens jou als volgende koppelen? 👇

    #WhatsAppUpdate #TechTip

  31. Bye bye, app-chaos! 👋

    Dankzij nieuwe EU-regels kun je nu via WhatsApp berichten sturen naar andere chat-apps. De eerste koppeling is live! 🤯 Nooit meer switchen om ál je vrienden te bereiken.

    Welke app moet volgens jou als volgende koppelen? 👇

    #WhatsAppUpdate #TechTip

  32. Got an email from somebody and want to add them to your #Outlook Contacts? One way is to right-click their name and choose "Add to Outlook Contacts". #TechTip

  33. Got an email from somebody and want to add them to your #Outlook Contacts? One way is to right-click their name and choose "Add to Outlook Contacts". #TechTip

  34. #TechTip: If you have an Android Phone with Android 14 or later you probably have a pretty decent USB webcam on your hand. If you connect your phone via USB to a PC you get a popup on your phone and when you tap on it you can select "Webcam" and your phone will be available as a normal USB camera to your system. I confirmed it working on Windows and Linux and depending on the camera in your phone you get a very good picture.

    #tech #android #tips #camera

  35. #TechTip: If you have an Android Phone with Android 14 or later you probably have a pretty decent USB webcam on your hand. If you connect your phone via USB to a PC you get a popup on your phone and when you tap on it you can select "Webcam" and your phone will be available as a normal USB camera to your system. I confirmed it working on Windows and Linux and depending on the camera in your phone you get a very good picture.

    #tech #android #tips #camera

  36. Giải pháp nghe nhạc cho phần cứng yếu: Jellyfin hay Navidrome?

    Một người dùng chạy OMV trên Thin Client cũ (AMD GX-217GA, 8GB RAM) gặp tình trạng lag nghiêm trọng (trễ tới 1 phút khi chuyển bài) khi dùng Jellyfin làm máy chủ nhạc qua ứng dụng Symfonium.

    Với cấu hình yếu, Jellyfin thường quá tải. Navidrome được đề xuất như một lựa chọn thay thế tối ưu hơn: nhẹ, nhanh và quản lý thư viện nhạc lớn tốt hơn hẳn trên các thiết bị cấu hình thấp.

    #SelfHosted #Navidrome #Jellyfin #MusicServer #TechTip

  37. Giải pháp nghe nhạc cho phần cứng yếu: Jellyfin hay Navidrome?

    Một người dùng chạy OMV trên Thin Client cũ (AMD GX-217GA, 8GB RAM) gặp tình trạng lag nghiêm trọng (trễ tới 1 phút khi chuyển bài) khi dùng Jellyfin làm máy chủ nhạc qua ứng dụng Symfonium.

    Với cấu hình yếu, Jellyfin thường quá tải. Navidrome được đề xuất như một lựa chọn thay thế tối ưu hơn: nhẹ, nhanh và quản lý thư viện nhạc lớn tốt hơn hẳn trên các thiết bị cấu hình thấp.

    #SelfHosted #Navidrome #Jellyfin #MusicServer #TechTip

  38. Ein cleveres Browser-Skript verschlankt Chrome, Edge und Firefox deutlich – weniger Ballast, mehr Speed! 🚀 Perfekt für alle, die ihren Browser aufräumen wollen. Entdecken Sie das Tool jetzt: golem.de/news/browser-skript-v #Browser #TechTip #Firefox 💻 #Newz

  39. Ein cleveres Browser-Skript verschlankt Chrome, Edge und Firefox deutlich – weniger Ballast, mehr Speed! 🚀 Perfekt für alle, die ihren Browser aufräumen wollen. Entdecken Sie das Tool jetzt: golem.de/news/browser-skript-v #Browser #TechTip #Firefox 💻 #Newz

  40. 🔧 Up your game with Cambium Networks! Our step-by-step guide gives you the ultimate WLAN setup, RadSec config, and Hotspot 2.0 integration. #TechTip #WayFiSetup 💻📶 wayfiwireless.com/wayfi-setup-

  41. Muốn dùng chung playlist giữa MusicBee trên PC và Jellyfin/Kodi? Vấn đề thường do đường dẫn file khác nhau. Bạn có thể mở file playlist (.m3u) và chỉnh sửa đường dẫn thủ công cho khớp với server. Sau đó playlist sẽ hoạt động trên mọi thiết bị.

    #Nhạc #Công nghệ #Mẹo #MusicBee #Jellyfin #Kodi #Playlist #TechTip #SelfHosting

    reddit.com/r/selfhosted/commen

  42. Muốn dùng chung playlist giữa MusicBee trên PC và Jellyfin/Kodi? Vấn đề thường do đường dẫn file khác nhau. Bạn có thể mở file playlist (.m3u) và chỉnh sửa đường dẫn thủ công cho khớp với server. Sau đó playlist sẽ hoạt động trên mọi thiết bị.

    #Nhạc #Công nghệ #Mẹo #MusicBee #Jellyfin #Kodi #Playlist #TechTip #SelfHosting

    reddit.com/r/selfhosted/commen

  43. Oeps, zelfs een rector trapt erin! 😬

    Vandaag bleek dat de rector van de UGent een door AI verzonnen citaat van Einstein gebruikte in haar speech.

    Een goede les: AI kan "hallucineren". Check dus altijd je bronnen! 🤖

    Ben jij weleens door AI voor de gek gehouden?

    #AI #TechTip

  44. Tiết kiệm data khi cài đặt Raspberry Pi OS! Thay vì tải lại ảnh chỉ để cấu hình Wi-Fi/SSH, bạn có thể dùng công cụ tạo file cloud-init. Chỉ cần tạo file, copy vào boot partition của thẻ SD là xong. Hữu ích cho người có băng thông hạn chế.

    #RaspberryPi #cloudinit #TiếtKiệmData #CôngNghe #TechTip #BandwidthSaver

    dev.to/ktauchathuranga/generat

  45. Tiết kiệm data khi cài đặt Raspberry Pi OS! Thay vì tải lại ảnh chỉ để cấu hình Wi-Fi/SSH, bạn có thể dùng công cụ tạo file cloud-init. Chỉ cần tạo file, copy vào boot partition của thẻ SD là xong. Hữu ích cho người có băng thông hạn chế.

    #RaspberryPi #cloudinit #TiếtKiệmData #CôngNghe #TechTip #BandwidthSaver

    dev.to/ktauchathuranga/generat

  46. 🚀 Vedete la differenza sul vostro SSD NVMe post-modifica del registro su Windows? Sperimenterete prestazioni superiori alla velocità della luce! #TechTip #WindowsUpgrade

    🔗 tomshw.it/hardware/windows-tru

  47. Vlieg jij ook weleens onder de radar? ✈️

    Vandaag blijkt dat militaire vliegtuigen boven Curaçao hun transponders (locatiezenders) moeten gebruiken. Zo zijn ze zichtbaar. 📡

    Wist je dat je telefoon dit ook heeft? Met ‘Zoek mijn’ is je smartphone nooit écht kwijt. Super handig! 📍

    Heb jij dit aanstaan of vind je privacy belangrijker?

    #VindMijnTelefoon #TechTip

  48. 🚨 Astuce #SysAdmin ! 🚨

    Optimisez vos animations web : apprenez à convertir vos GIFs en MP4 légers et performants avec FFmpeg ! Un guide essentiel pour tout administrateur système sous Linux.

    Le contrôle du CRF expliqué pour un équilibre parfait entre qualité et taille.

    👉 wiki.blablalinux.be/fr/optimis

    #Linux #FFmpeg #Optimisation #DevOps #AdminSys #TechTip #LogicielLibre

  49. Just click buttons until things start working.

    Oh, and make sure to take notes.

    #techtip #it

  50. Remove Extensions you don't recognize. This malware was hidden in a popular extension and wasn't activated for YEARS!!! txtechnician.tech/r/7-year-mal

    #smallbusiness #techtip
    #chrome
    #firefox
    #edge

  51. Taught about host security last week! Here are a few essentials:
    🔒 Default-deny firewalls (ufw or firewalld)
    🧰 Disable unneeded services
    🖧 Use SSH keys, not passwords
    📊 Watch /var/log/secure for odd activity

    Host hardening is your first defense, not your last.
    What are your goto tools?

    #Linux #Security #SysAdmin #TechTip

  52. Account security on Linux starts simple: principle of least privilege.

    A few quick checks:
    1) Ensure no one logs in directly as root
    2) Use sudo with proper group assignments
    3) Enforce strong password or key policies
    4) Monitor failed logins via /var/log/secure or journalctl

    Small habits prevent big breaches, especially in shared environments.
    What’s one account security tip you wish you’d learned earlier?

    #Linux #SysAdmin #Security #TechTip

  53. #techtip for #it stop landing in the spam folders of Gmail and Outlook accounts.

    There are two services that you can set up to help prevent your emails from going to people spam folders.