Linux Consulting in Columbus, Wisconsin

Since 2009, Zwiegnet has been the trusted Linux consulting partner for Wisconsin companies — now proudly offering specialized local support right in Columbus, WI. Whether you're running enterprise servers, migrating from legacy systems, securing your infrastructure, or optimizing performance, our team delivers fast, expert assistance with minimal travel time.

We serve local industries including manufacturing, agriculture, healthcare, education, logistics, and small-to-medium businesses throughout Dodge County and beyond.

Our Columbus-area Linux consulting services include:

• On-Site & Remote Enterprise Linux Support – RHEL, AlmaLinux, Rocky Linux, Oracle Linux, Ubuntu LTS, Debian — break-fix, performance tuning, security hardening
• Windows to Linux Migrations – Move file servers, applications, and infrastructure from Windows to Linux with minimal disruption
• CentOS 7/8 EOL Migration – Seamless transition to AlmaLinux, Rocky Linux, or Oracle Linux with full testing and zero-downtime options
• Active Directory & Kerberos Integration – Join Linux servers to AD using realmd/sssd, keytab automation, NFSv4/krb5, Samba AD
• Disaster Recovery & Backup Planning – ReaR bare-metal recovery, Bacula/rsync, off-site replication, HA clustering, DR drills
• SAN Storage & Multipath Expertise – Fibre Channel, iSCSI, NVMe-oF, DM-Multipath configuration, failover/load-balancing
• High Availability & Clustering – Pacemaker/Corosync, DRBD, Keepalived, load-balanced web/database clusters
• Security Hardening & Compliance – CIS benchmarks, SELinux/AppArmor, firewall (firewalld/iptables), ModSecurity, fail2ban, vulnerability scanning
• Custom Linux Projects & Automation – Ansible deployment, custom scripting, monitoring (Nagios/Zabbix), containerization (Podman/Docker)

Why choose a local Columbus, WI Linux consultant?

• Fast on-site response when needed — we're already in Wisconsin
• Deep understanding of regional business needs and compliance requirements
• No travel surcharges or long-distance delays
• Personal, relationship-based service — not a distant call center

Located between Madison and Milwaukee, with easy access to Columbus, Watertown, Beaver Dam, and the entire Dodge County area. Serving local businesses since 2009.