ISVTEC Web Applications
Legacy Web Application Maintenance
PHP 5, Python 2, Drupal 7, Magento 1, an old Debian: we keep the old web application your business depends on secure and online, for as long as you need it.
Your platform runs on PHP 5, Python 2, an old Debian, a framework nobody updates any more. Everyone tells you to rewrite it. You know why you cannot, not yet.
You Have Good Reasons to Keep It
- It works, and it pays the bills every day: a rewrite puts that revenue at risk
- Fifteen years of business rules live in that code, and nobody wrote them down
- It talks to an ERP, a bank, a partner or a supplier whose interface cannot change tomorrow
- A rewrite costs a year and a budget you would rather spend on growth
- The team that built it has left, and a new team would start by breaking what works
We respect that. We keep deep, complex software stacks running safely as they are, for as long as you need, and we never push you into a rewrite.
What We Do
- Isolation: the old stack runs contained, exposed only where it must be
- Hardening, and a WAF in front: attacks on the known flaws of old versions are blocked before they reach the code
- Controlled patching, one tested change at a time
- 24/7 monitoring and on-call, backups twice a day, off-site and encrypted
- A human on call who knows your stack, reachable for anything
Proof
We run production systems others refuse to touch: legacy Linux, old PHP and Python, and databases carried across a decade or more. Our founder maintained the DRBD high-availability Debian packages for roughly 10 years. Some clients have stayed with us for 15 years on stacks we upgraded in place.
When You Are Ready to Move
We bring the stack to current versions step by step, tested on a separate copy of production before each step: see Legacy Web Application Modernization.
How It Starts
Onboarding within 5 business days: inventory, security audit, the list of critical risks with our recommendations. Then a monthly plan quoted from that inventory, with no long-term commitment.