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Different is Beautiful

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

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Networking

• Ethernet: arp
• TCP/IP
• Secure Shell
• Cisco IOS
• DMZ, Port knocking, Bastion host, Firewall Software: iptables ufw firewalld nftables firewall-cmd ipfw (FreeBSD) PF (OpenBSD), netsh advfirewall, PAN-OS, WAF, pfsense, VyOS, Cisco ASA, DMZ, F5, URL Filtering, port forwarding, macOS application firewall, Windows firewall, Fortigate, ngrok, Network ACL

OS

• Linux:
  • Linux Distributions
  • Linux Commands
  • LVM, ZFS
• macOS
• Cisco IOS
• PAN-OS: firewall

Virtualization

• KVM: (2007) virsh, libvirt, QEMU
• Xen
• Containers: containerd, runc
  • Kubernetes (CKA, Minikube)
  • Docker (docker-compose)
  • Rancher
• VirtualBox (2007)
• Multipass (2019)
• VMWare ESX
• LXC
• BHyve
• Vagrant (2010)
• Packer (2013)
• Hyper-V (2008)
• Red Hat Virtualization (RHV) (2009)

Web Servers

• Nginx: nginx.conf
• Apache

Databases

• MariaDB
• MySQL
• PostgreSQL
• RocksDB (library)

Key-value

• Redis
• etcd

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: nmap
• Cryptography: MD5, SHA
• Application Security Testing
• Security policy: Password policy
• Denial-of-service attack (DoS, DDos)
• Encryption

Storage

• Fibre Channel, iSCSI
• NFS
• Multipath
• NetAPP: ONTAP
• Deduplication
• HDD and SSD
• Tape library

Cloud

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

DevOps

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

Software development

• Git (2005)
• GitLab (2011)
• GitHub (2008)
• TeamCity (2006)
• Jenkins (2011)
• AWS CodeCommit (2015)
• Azure DevOps
• Bitbucket

Software

• Mediawiki: Wikipedia
• Confluence