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The open website

that anyone can collaborate.

Different is Beautiful

• Networking
• OS
• Virtualization
• Databases
• Security
• Storage
• Cloud
• DevOps
• Development

Networking

• TCP/IP
• Ethernet
• Firewalls
• Secure Shell
• Cisco IOS

OS

• Linux:
  • Linux Distributions
  • Linux Commands
  • LVM, ZFS
• OpenBSD
• FreeBSD
• macOS
• Cisco IOS
• PAN-OS (firewall)
• Windows: Windows 10

Virtualization

• KVM: virsh, libvirt, QEMU
• Xen
• Containers:
  • Kubernetes (CKAD)
  • Docker (docker-compose)
• VirtualBox
• multipass
• VMWare ESX
• LXC
• BHyve
• Vagrant
• Packer

Databases

Relational (SQL):

• MariaDB
• MySQL
• PostgreSQL
• RocksDB (library) (2012)

Key-value:

• Redis
• etcd
• MemcacheDB

Document-oriented:

• MongoDB (JSON)

Cloud

• AWS RDS
• InfluxDB

Security

• Authentication
• SIEM, IDS
• VPN
• Wi-Fi: WEP, WPA
• Linux: SELinux and AIDE
• OpenSSH: sshd, ssh
• Network security: Firewalls
• Side-channel attacks
• Wireless Network Hacking
• Vulnerability scanners
• Cryptography: MD5
• Application Security Testing

Storage

• Fibre Channel
• NFS
• multipath
• NetAPP: ONTAP
• deduplication
• HDD and SSD

Cloud

• AWS
• Azure
• DigitalOcean
• Alibaba
• IBM Cloud
• GCP

DevOps

• Ansible
• Terraform
• Configuration management: Puppet
• AWS Cloudformation
• CI/CD

Software development

• git
• GitLab
• GitHub
• TeamCity
• Jenkins
• Changelogs

Software

• Mediawiki: Wikipedia
• Nginx: nginx.conf