Bremen, Germany hashmat@bahadari.de bahadari.de

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System administration and IT security for daily operations

Day-to-day IT operations, user management, networking and IT security – reliable and documented.

Good administration goes unnoticed: sign-in works, the backup is there, the printer prints. I take care of this everyday work while keeping security in view – with experience from an environment of more than 2,500 users across 34 sites.

What I take care of

  • User and permission management, onboarding and offboarding
  • Windows clients and servers, updates and patch management
  • Networking, Wi-Fi, VPN and firewall basics (including Fortinet)
  • Backup concepts and regular restore tests
  • Investigating security incidents: accounts, logs, data exfiltration
  • ISO/IEC 27001 gap analysis and readable IT documentation
Reference network designNetwork plan
VLAN 10: OfficeVLAN 20: ServerVLAN 30: WLANVLAN 40: GuestsInternetMicrosoft 365Cloud servicesFWFirewall (Fortinet)UTM, VPN gatewayRemote & field staffSSL VPN with MFASWCore-SwitchVLAN routing, ACLsVPNWorkstationsPrintersSRVFile & ERP serverBKBackup + offsiteAPStaff Wi-FiAPAccess PointsAPGuest Wi-FiInternet only
Reference design for a business with office, servers and field staff: VLAN segmentation, VPN with MFA, guests strictly separated, off-site backup.

Is there a task that eats up your time every week?

In a free 30-minute introductory call we look at what can be simplified or automated.