Convertisseur YouTube : YouTube MP3 et YouTube MP4 gratuit - noTube Logiciel antivirus Fonctionnement[modifier | modifier le code] Un logiciel antivirus vérifie les fichiers et courriers électroniques, les secteurs de démarrage (afin de détecter les virus de boot), mais aussi la mémoire vive de l'ordinateur, les médias amovibles (clefs USB, CD, DVD, etc.), les données qui transitent sur les éventuels réseaux (dont internet), etc. Différentes méthodes sont possibles : Les antivirus peuvent balayer le contenu d'un disque dur, mais également la mémoire vive de l'ordinateur. Approches[modifier | modifier le code] On distingue plusieurs types de logiciels antivirus selon leur fonctionnement. Dictionnaire[modifier | modifier le code] Les créateurs de logiciels antivirus ayant préalablement identifié et enregistré des informations sur des virus, comme le ferait un dictionnaire, le logiciel antivirus peut ainsi détecter et localiser la présence d’un virus. On appelle ce dictionnaire la base de définition virale qui contient les signatures de virus. Portail de la sécurité informatique
NixNet Meet NordLynx – the new solution for a fast and secure VPN connection When innovation knocks, what will you do: let it in or shut the door? Being forever-curious and imaginative geeks, we at NordVPN are always open to innovation. Today we are excited to announce our latest project: the NordLynx technology built around the WireGuard® protocol. The background Offering a high-speed connection while maintaining top-notch security is one of the biggest challenges for a VPN provider. The emergence of WireGuard, a new VPN tunneling protocol, seemed like a breath of fresh air in the industry. Modern, extremely fast, and insanely lean in its architecture, WireGuard uses state-of-the-art cryptography and is backed by thorough academic research. However, it’s not all as great as it sounds. But an opportunity to offer a faster and more reliable VPN connection to our users was right there. That’s how project NordLynx came to life. Project NordLynx The WireGuard protocol alone can’t ensure complete privacy. How we made it work And we found it. Linux users, try NordLynx now
Popup Blocker Ultimate RKHunter pour tracker les malwares Installation et configuration de RKHunter pour chercher les modifications des fichiers critiques grâce à des empreintes prises régulièrement et chercher la présence de rootkits/malwares connus. Il vérifie aussi les processus ayant des fichiers supprimés ouverts, les binaires qui sont des scripts, … Cet outil aide à détecter la compromission d’un système. rkhunter signifie Root Kit Hunter. Cet article ne dépend que de la série d’articles que la préparation générique d’une machine. Je commence par donner à debconf les réponses aux questions qui seront posées par le paquetage lors de son installation. echo 'rkhunter rkhunter/cron_daily_run boolean true' | debconf-set-selections echo 'rkhunter rkhunter/cron_db_update boolean true' | debconf-set-selections echo 'rkhunter rkhunter/apt_autogen boolean true' | debconf-set-selections apt-get install -y rkhunter Notifications par courriel sed -i 's/#\? Mise à jour de la base sed -i 's/#\? Filtrage des faux positifs Divers sed -i 's~#\? ICT Force site
Standing on Our Own Two Feet When a new Certificate Authority (CA) comes on the scene, it faces a conundrum: In order to be useful to people, it needs its root certificate to be trusted by a wide variety of operating systems (OSes) and browsers. However, it can take years for the OSes and browsers to accept the new root certificate, and even longer for people to upgrade their devices to the newer versions that include that change. The common solution: a new CA will often ask an existing, trusted CA for a cross-signature, to quickly get it into being trusted by lots of devices. Five years ago, when Let’s Encrypt launched, that’s exactly what we did. Now, those software platforms have trusted our root certificate for years. However, this does introduce some compatibility woes. Android has a long-standing and well known issue with operating system updates. Google no longer provides version numbers on its Distribution Dashboard, but you can still get some data by downloading Android Studio. What can we do about this?
Some Useful Tools For Linux System Admins This guide provides a list of useful tools for Linux system admins. This list doesn’t include any complicated programs (like Ansible, Puppet) that requires a steep learning curve to setup and use in production. Most of the tools given here are just scripts and are very easy to install and use in real time. If you’re a budding Linux/Unix sysadmin who has limited experience, make use of these programs to get the job done easily and quickly. Sysadmin-util is a collection of scripts that helps the novice sysadmins and users to perform various tasks. Sysadmin-util contains the following scripts. agochroniccidr2ipcollapsedupesempty-direxpand-ipv6flush-firewallgraphite_sendipaddrmaybemk-passwd-hashmulti-pingmysql-slave-checkpyhttpdrandpasssincesplayssh-auth-typesssh-testssl-expiry-datetimeoutuntil-erroruntil-successwhen-downwhen-upwhich-shellwith-lock Let us go ahead and see how to install and use some of these tools with examples. Installation and usage ago $ cd sysadmin-util $ . Examples: $ . $ . $ .