Solaris to Linux Migration

With Oracle Solaris reaching end-of-life for many versions and increasing licensing costs, many organizations are successfully migrating to modern Linux distributions. Zwiegnet has deep experience helping clients move from Solaris (SunOS) to Linux while preserving functionality and improving performance.

We handle the full migration lifecycle:

• Assessment & Planning – Inventory of hardware, applications, scripts, zones/containers, ZFS filesystems, and dependencies.
• Target Platform Selection – Recommend the best Linux distribution (RHEL, Rocky Linux, AlmaLinux, Ubuntu LTS, etc.) based on your needs and compliance requirements.
• Application Porting – Recompile or refactor Solaris-specific applications, replace Sun/Oracle compilers with GCC/Clang, and adapt to Linux APIs.
• Script Migration – Convert ksh/Solaris-specific shell scripts to Bash or POSIX-compliant scripts.
• Filesystem & Storage – Migrate ZFS datasets to Linux alternatives (ZFS on Linux, btrfs, ext4, XFS) with data integrity preserved.
• Container/Zone Migration – Move Solaris Zones or branded zones to Linux containers (Docker/Podman) or LXC/LXD.
• Networking & Security – Replicate IPFilter rules with iptables/nftables or firewalld, migrate SSL certificates, and harden the new environment.
• Testing & Validation – Parallel testing, performance benchmarking, and user acceptance to ensure equivalence.
• Cutover & Go-Live – Zero or minimal downtime migration strategies, including rollback plans.
• Post-Migration Support – Ongoing tuning, monitoring, and knowledge transfer.

Benefits include reduced licensing costs, access to current security patches, broader hardware support, and a larger ecosystem of open-source tools.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct, personal service with proven migration experience.