Skills
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- **Linux** (22 years) : RHEL/Debian/Ubuntu, kickstart, PXE, LDAP, SSSD, RPM/Deb package creation, quotas, extended permissions, clustering, AppArmor, SeLinux, Centrify, Tripwire, Integrit, OSSEC. 
- **Unix** ( 5 years) : HPUX/Solaris
- **Windows** (22 years) : Server (2008 - 2016), Windows client automated deployment (7,8,10,11), Active Directory, Group Policy, WSUS, Certificate Services, AD DNS, AD DHCP, complex multiple forest and domain setups, LDAP
- **Free/Libre/Open Source Server software**  (22 years) : Apache, Postfix, Qmail, Dovecot, Courier, Nginx, Matamo, Discourse, Wordpress, Mautic,Dolibarr, Revive, Firefly, Cloudron, Coolify, Gitea, Gitlab, GitHub, Git, Jenkins, Rundeck, N8N, Mysql,Postgresql,  LetsEncrypt, ACME, cfssl
- **Cyber Security** (22 years) : PCI Compliance, security hardening,audits, breach response and mitigation, patch and vulnerability management. 
- **Networking** (22 years) : Linux Virtual Server, HAProxy, Ubiquiti Unifi, Opnsense, Pfsense, HP, Cisco, Arista, Dell, DNS, DHCP, IPAM, PXE, IPS, IDS, GRE, IPSEC. Wireguard, OpenVPN, Nebula, Tailscale, RADIUS. Mostly layer2 data center/campus/access some WAN,firewall,layer3 
- **Monitoring** (22 years) : Uptime kuma, librenms, zabbix, zenoss, nagios 
- **Storage** (22 years) : NFS, Samba, CIFS, Netapp, ZFS, True/Free NAS, 3par, MSA, Equallogic, EMC, generic iscsi
- **Virtualization**  (22 years) : VmWare, Parallels,HyperV, KVM, Xen
- **Containerization** (12 years) : LXC, Docker 
- **Configuration management** (22 years) : Slack, Cfengine, Puppet, FetchApply, Ansible, Hashicorp Packer/Vault
- **Embedded** (5 years) : Raspberry pi, arduino, seeduino, Lego Mindstorms
- **Programming/Automation** (22 years) : Bash , J2ME, PHP, Ruby, PowerShell, TCL/TK, Java. 
- **Ticket / incident / project management** (22 years): Jira, ServiceNow,Redmine,RT.
- **Git** (15 years) : branching, merging, multiple teams, external vendors, submodules etc. 
- **Current growth/learning focus**  (2 year in my development lab) : Prometheus, Grafana, CI/CD, GCP, AWS, Azure, Kubernetes, Helm