Discover and read the best of Twitter Threads about #sysadmin

Most recents (11)

Je viens de tilter sur une grosse différence entre les #clouds US (AWS, Azure, GCP) et les cloud Fr qui explique je pense pas mal de choses, notamment sur la vision.

(mini thread, je ne suis pas fan, mais bon ça vaut pas un article 🧵)
#DevOps #sysadmin
Historique les acteurs US était avant d'être des acteurs cloud, ben des entreprises techniques qui avait des besoins techniques exigeant (plus que les autres entreprises de l'époque).
Par exemple Amazon a très tôt du apprendre à gérer de gros pics de trafic.
Quand ils se sont lancés sur le cloud, ces entreprises ont utilisé l’expérience acquise pour répondre à ces nouveaux besoins.
Ça peut paraître con, mais en faite ils connaissent parfaitement ce que les entreprises exigeantes attendent. Donc leurs produits est bien adapté.
Read 6 tweets
¿Y si te digo que hay una manera TOTALMENTE LEGAL de conseguir por 0€ un total de 18,446,744,073,709,551,616 de IPsv6 públicas para tu uso?

🧐-"¿como? ¿Cuántas IPs?"
👻-18,446,744,073,709,551,616
🧐-"¿Gratis? ¿Y puedo navegar con ellas?"
👻-¡SEP!
🧐-"Dámelas! yaaa!!"

¡VAMOS!
Antes de empezar quiero recordar de donde venimos, este es el quinto hilo de IPv6, aquí tienes los otros:

Intro a IPv6:

Direccionamiento:

Subredes:

Unicast:

¡Ahora si! ¡Al lio!
Hoy vamos a configurarnos una conexión IPv6 a Internet desde nuestra "anticuada" conexión IPv4...

🧐-"¿Pero qué me estás contando?"
👻-Si, eso vamos a hacer un Tunel IPv6 para nuestro uso y disfrute.

Además, lo voy a explicar sobre Windows 10, para que sea más accesible.
Read 28 tweets
Yep: @opera , @mozilla , @firefox since the early 90's. #Sysadmin
Power of 10 ... @elonmusk; this is how it's done.

Build your rocket ship; I'll build the society.
Call me King. 🤙
Read 4 tweets
Me he dado cuenta de que me ha dado por hacer hilos sobre temas de cibersec o sysadmin, así que voy a recopilarlos todos en este post fijado...

#cibersec #sysadmin #hilos
Sobre cómo te pueden robar los datos de tu empresa sin que te des cuenta...

Read 33 tweets
Fluency in #terminal #scripting is a skill often neglected and considered archaic, but it improves your flexibility and productivity as a #SysAdmin in obvious and subtle ways.
Let's start a thread about #bash scripting with #EnableSysadmin support...
#Linux
Why settle for boring #Bash? You can customize every aspect of your shell and this article gets you started. red.ht/2U62qAz via #EnableSysadmin
How to manage your Linux command history red.ht/2KnrMrv via #EnableSysadmin by @kenhess . Taking the mystery out of your Bash history.
Read 16 tweets
La info de ayer te desperto el bichito de meterte en #ciberseguridad? ¿Querés ser hacker? te cuento un poco de como arranque y algunos consejos para que logres progreso y te vayas enamorando. En el hilo anterior mencione aprender de sistemas operativos. Acá hay principalmente 2
Sé que estas pensando! sí! #Mac y #Windows, pero NO. Me refiero a #linux y a #windows. otro día hablamos de Mac. Es importante que conozcas a detalle como funcionan estos sistemas operativos. Para esto te podes bajar #virtualbox y crear dentro una virtual machine con un @ubuntu
y otra con #windows10 o el que tengas licencia. Hay que entender como funciona por dentro, cual es el tipo de file system que utiliza cada uno, porque se utilizan permisos, que tipo de archivos hay en cada directorio, que hacen esos archivos? cuales son ejecutables y cuales
Read 16 tweets
⚠️URGENT⚠️

Hackers exploit #Solorigate supply-chain backdoor in #SolarWinds enterprise monitoring software to breach US Treasury, Commerce Department, other government agencies, and cybersecurity firm #FireEye.

Details: thehackernews.com/2020/12/us-age…

#infosec #cybersecurity #sysadmin
Citing unnamed sources, media said the latest cyberattacks against #FireEye and U.S. government agencies were the work of Russian state-sponsored #APT29 or Cozy Bear #hacking group.
According to FireEye, attackers tampered with a #software update released by #SolarWinds, which eventually led to the compromise of numerous public and private organizations around the world with #SUNBURST backdoor.

thehackernews.com/2020/12/us-age…

#infosecurity Image
Read 4 tweets
{Updated} Learn how to configure or control outgoing address when using Postfix MTA with ISP smarthost or AWS SES on your Linux or Unix server cyberciti.biz/tips/howto-pos… #sysadmin
This post was originally published in 2006. I update older pages/tutorials for updated material. It is a cumbersome process and will keep doing as long as working as a sysadmin. After that, someone else will take over. Image
You can even say I was original StackOverflow for the Linux and Unix-like system ;) LOL.
Read 3 tweets
So you want to get into Cyber Security? I’ll tell you how
Cyber security is about protecting data, networks and devices from unauthorised access
Most people are currently working remotely.

This increases the risk of security incidences as companies' data is now accessible over home networks with little or no security add ons
Read 99 tweets
A little late here’s my first tech thread.

A few tools I use that may help my fellow Windows Admins & Engineers.

Some you may know and some you may not.

#DigitalSpen #SysAdmin #SysOps
#WindowsServer #BlackTechTwitter
1. IAS Viewer Log Viewer by Deep Software

Helps with monitoring radius/NPS logs. Makes reading those radius logs ALOT easier to troubleshoot issues.

Saved me more than a couple times dealing with wifi authentication issues.
deepsoftware.com/iasviewer/
2. TreeSize by Jam-Software

Scans disk space and makes it easy to find what folders or files are consuming too much space.

I use this on a weekly basis. Finding overgrown logs or users storing large video files became a lot easier.

jam-software.com/treesize_free/
Read 6 tweets
.@stahnma talking about legacy software circleci.com/blog/the-littl… (1/n)
TIL there's a term called as Newton’s Third Law of #sysadmin, which says “a system untouched will remain online.” Where he elaborates that this isn't true after a point. (2/n)
There's another interesting point which he tries discussing is what happens to the legacy code when it doesn't have a clear owner? Who maintains it and how to go about trying to solve that problem. (3/n)
Read 6 tweets

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