Nethence Architectures & Services
Turning to the Open Source: pbraun@nethence.com
Infrastructures Consulting
- Redundant BSD powered firewalls & WAN links (IPSEC)
- Layer 3 (BSD powered) vs Layer 5-7 (NGINX) load-balancers
- Strong anti-spam Postfix front-ends
- BIND+DHCPD+LDAP+CAS for DNS, DHCP and SSO-enabled Directory Server/Service
- KVM + XEN + Docker/Kubernetes powered OpenStack and SaltStack
- Grafana vs Kibana performance graphs
- Ceph vs Apache Hadoop for Storage Facilities
- Gollum, Redmine Wiki or Moodle for Documentation Management
- Redmine for R&D bug tracker as well as for IT helpdesk
- GitLab + ICEScrum vs OrangeScrum vs Tuleap for Software Development Management
- Slack.com or XMPP Jabber for teams' collaboration
Infrastructures Migrations & Convertions
Migrating Microsoft datastores and services to Open Source facilities e.g.:
- MS Exchange to BlueMind or (Postfix + Cadaver/CalDAV + Sieve + Dovecot + Roundcube)
- MS Active Directory to OpenLDAP or Samba v4 or Apache DS + CAS SSO
- Migrating Windows Java services to Linux/Java
- Migrating Windows Oracle Database instances to Linux/Oracle or possibly Linux/MySQL Linux/MariaDB
Getting rid of old hardware and old VMs:
- Transporting ok-hardware or getting rid of obsolete-hardware once the systems are P2Ved or apps are Dockerized
- P2V by any means to migrate systems to other datacenters with almost-no-downtime
- Migrating applications to Docker containers