Overly permissive firewall rules
Broad or poorly documented rules can expose internal systems and services.
Network Security and Perimeter Protection
Secure your business network with professionally managed firewall services
Hozit designs, deploys and manages business firewall environments with secure internet access, VPN connectivity, intrusion prevention, web filtering, application control, rule governance, monitoring and ongoing support.
Service Overview
Professional IT support for growing and established organisations
A business firewall is one of the most important security controls between internal systems, users, cloud services, branch offices and the public internet.
However, a firewall only provides effective protection when it is correctly designed, configured, monitored, updated and maintained over time.
Hozit provides managed firewall services for small businesses, multi-branch organisations, call centres, professional firms, schools, healthcare environments, retail operations and enterprise networks.
We support firewall deployment, secure internet breakout, VPN connectivity, network segmentation, intrusion prevention, application control, web filtering, logging, alerting, rule management and ongoing optimisation.
Our managed service reduces the risk of insecure rules, outdated firmware, unauthorised access, exposed services and poor visibility across the business network.
Business Challenges
Common IT problems we help solve
Unsecured remote access
Weak VPN and remote-access controls increase the risk of unauthorised entry.
Outdated firmware
Unpatched firewall software may contain known security weaknesses.
Limited visibility
Businesses may not know which users, applications or threats are consuming network resources.
Flat networks
A lack of segmentation allows incidents to spread between users, servers and critical systems.
Misconfigured port forwarding
Publicly exposed services can be attacked when access is not tightly controlled.
No rule governance
Rules accumulate over time without review, ownership or expiry.
Inadequate logging
Security events cannot be investigated properly without suitable logs and retention.
Unmonitored VPN tunnels
Branch and partner connections may fail without immediate notification.
Resource constraints
Internal IT teams may not have time to continuously manage firewall operations.
What Is Included
Comprehensive managed IT support services
The final scope is tailored to the organisation's users, systems, locations, risks and internal capabilities.
Firewall assessments
Review current devices, rules, firmware, interfaces, VPNs, exposure, logging and operational risks.
Firewall strategy
Define the required security architecture, segmentation, access controls and management model.
Firewall supply
Source suitable business and enterprise firewall appliances and subscriptions.
Firewall installation
Install and commission supported physical or virtual firewall platforms.
Firewall replacement
Migrate from outdated or unsupported firewall equipment with controlled cutover planning.
Firewall configuration
Configure interfaces, zones, routes, policies, NAT, services and management access.
Firewall hardening
Restrict administrative access, disable unnecessary services and apply secure settings.
Security policy design
Create policies based on business need, least privilege and approved access.
Firewall rule management
Create, modify, review, document and remove rules under controlled change procedures.
Rule recertification
Review existing rules periodically to confirm ownership, purpose and continued need.
Network address translation
Configure source NAT, destination NAT and controlled port forwarding.
Internet access control
Manage outbound access based on users, devices, applications, categories or business requirements.
Web filtering
Block malicious, inappropriate or non-business web categories.
Application control
Identify and control selected applications regardless of port usage.
Intrusion prevention
Detect and block supported network-based attacks and suspicious traffic patterns.
Anti-malware inspection
Inspect supported traffic for known malicious content where platform capabilities allow.
DNS security
Reduce access to malicious or suspicious domains using supported controls.
SSL inspection planning
Assess and deploy encrypted-traffic inspection where lawful, technically suitable and approved.
Email security integration
Integrate supported firewall and mail-security controls where appropriate.
Network segmentation
Separate users, servers, voice, guest Wi-Fi, CCTV, IoT and critical systems.
VLAN firewalling
Control traffic between VLANs using security policies and least-privilege access.
Guest network isolation
Prevent guest users from accessing internal business systems.
Server-zone protection
Apply stricter controls around critical servers and business applications.
DMZ design
Place public-facing systems in controlled network zones.
Site-to-site VPN
Securely connect offices, branches, data centres and cloud environments.
Remote-access VPN
Provide authorised users with encrypted access to approved internal resources.
Multi-factor authentication
Add stronger authentication for supported remote-access services.
VPN user management
Create, modify and revoke remote-access permissions.
Cloud VPN integration
Connect business networks to AWS, Microsoft Azure and supported cloud platforms.
SD-WAN configuration
Use supported firewall platforms to manage multiple links and branch connectivity.
Dual-WAN failover
Configure backup internet links for improved availability.
Load balancing
Distribute traffic across supported internet connections where suitable.
Bandwidth management
Prioritise critical business, voice and application traffic.
Quality of service
Protect latency-sensitive services such as VoIP and video conferencing.
High availability
Deploy active-passive or supported clustered firewall configurations.
Failover testing
Verify firewall redundancy, WAN failover and critical connectivity.
Centralised management
Manage multiple supported firewalls from a central platform.
Firewall monitoring
Monitor availability, interfaces, resource usage, VPN status and selected events.
Security alerting
Generate alerts for high-risk activity, failures and policy violations.
Log management
Collect and retain firewall, VPN and security logs for troubleshooting and investigation.
Reporting
Provide summaries on traffic, applications, threats, blocked activity and system health.
Firmware management
Plan and apply supported firmware updates using controlled maintenance windows.
Configuration backups
Maintain recoverable copies of firewall configurations.
Change management
Document requested changes, approvals, implementation and rollback information.
Incident support
Assist with firewall containment, investigation and recovery during security incidents.
Compliance support
Provide relevant firewall documentation, logs and evidence for audits.
Performance optimisation
Review throughput, session use, inspection load and platform capacity.
Lifecycle management
Track licensing, subscriptions, warranties, support status and replacement planning.
Managed firewall support
Provide ongoing administration, monitoring, maintenance and technical assistance.
Business Benefits
Why organisations choose managed IT support
Stronger perimeter security
Professionally managed policies reduce avoidable exposure to internet-based threats.
Controlled access
Users, devices, branches and applications receive only the access they require.
Improved visibility
Logs and reporting show how the network and internet connection are being used.
Safer remote work
VPN and multi-factor authentication improve remote-access security.
Better network resilience
Dual-WAN, high availability and monitoring reduce avoidable outages.
Reduced operational burden
Hozit handles routine firewall administration, maintenance and support.
Faster incident response
Central monitoring and documented configurations support quicker investigation.
Improved governance
Rule review, change records and reporting support accountability and audits.
Our Methodology
From discovery to ongoing improvement
Discovery and assessment
We review the network, internet links, users, servers, applications, branches and security requirements.
Firewall design
Zones, interfaces, segmentation, VPNs, policies, availability and management are planned.
Solution selection
A suitable firewall platform, licensing and capacity are selected.
Configuration build
Rules, NAT, VPN, filtering, inspection, logging and administration are configured.
Testing
Internet access, internal services, VPN, failover and security controls are verified.
Cutover
The firewall is placed into production using a controlled migration and rollback plan.
Hardening
Administrative access, services, policies and firmware are reviewed and secured.
Documentation
Rules, networks, VPNs, access, support and recovery information are recorded.
Handover
Relevant users and administrators receive operational guidance.
Managed operation
Hozit monitors, maintains, updates and optimises the firewall environment.
Engagement Options
Flexible IT support models
Managed firewall service
Ongoing monitoring, rule management, updates, reporting and support.
Firewall deployment project
Supply, configure and install a new firewall for a defined environment.
Firewall replacement
Migrate from an existing platform to a supported replacement.
Firewall security assessment
Review configuration, rules, exposure, firmware, logging and risks.
Multi-branch firewall management
Centrally manage supported firewalls across several locations.
VPN implementation
Deploy site-to-site, remote-access or cloud VPN connectivity.
High-availability deployment
Implement supported redundant firewall architecture.
Firewall optimisation
Improve security policies, performance, segmentation and rule quality.
Technology Coverage
Platforms and technologies we support
Support is subject to the agreed scope, vendor requirements, licences and available technical documentation.
Fortinet FortiGate
Sophos Firewall
Cisco Secure Firewall
Cisco Meraki
Palo Alto Networks
WatchGuard
SonicWall
pfSense
OPNsense
Ubiquiti
MikroTik
Next-generation firewall
Stateful inspection
Intrusion prevention
Application control
Web filtering
DNS security
Anti-malware
SSL inspection
IPsec VPN
SSL VPN
Remote-access VPN
Site-to-site VPN
Multi-factor authentication
Network segmentation
VLANs
DMZ
NAT
Port forwarding
SD-WAN
Dual WAN
High availability
QoS
Bandwidth management
Centralised management
Syslog
Security monitoring
Log retention
Firmware management
Configuration backup
AWS VPN
Azure VPN Gateway
Active Directory
Microsoft Entra ID
Industries
Managed IT support across key sectors
Healthcare
Protect clinical, laboratory, administration and guest networks with controlled access.
Explore Healthcare solutions →Mining
Secure branches, remote sites, operational networks and cloud connectivity.
Explore Mining solutions →Education
Separate staff, student, server, laboratory and guest access.
Explore Education solutions →Government
Support policy enforcement, logging, segmentation and secure remote access.
Explore Government solutions →Legal & Professional Services
Protect confidential systems, client data and remote users.
Explore Legal & Professional Services solutions →Logistics & Transport
Secure depots, branches, booking systems, tracking platforms and remote operations.
Explore Logistics & Transport solutions →Retail & eCommerce
Protect stores, payment systems, head office, Wi-Fi and cloud services.
Explore Retail & eCommerce solutions →Technology Companies
Secure development, production, cloud and customer-facing environments.
Explore Technology Companies solutions →
Why Hozit
A practical technology partner for your organisation
Security-led design
We build firewall policies around least privilege, segmentation and real business requirements.
Multi-vendor capability
Hozit can support selected platforms from major commercial and open-source vendors.
Network and cloud expertise
We integrate firewalling with LAN, WAN, VoIP, AWS, Azure and remote-access requirements.
Managed operations
Monitoring, updates, changes, backups and reporting are handled as an ongoing service.
Documented governance
Rules, changes, VPNs and access are recorded to improve accountability.
Practical support
Hozit provides deployment, troubleshooting, incident assistance and lifecycle planning.
Example Scenarios
How managed IT support can be applied
These are illustrative examples and are not presented as named customer case studies.
Branch connectivity
Multiple offices can be linked securely using monitored site-to-site VPN tunnels.
Remote workforce
Authorised staff can connect through MFA-protected remote-access VPN.
Guest Wi-Fi isolation
Guest users can access the internet without reaching internal business systems.
Server protection
Critical servers can be placed in controlled network zones with limited access.
Dual-WAN resilience
A secondary internet connection can take over if the primary service fails.
Ransomware containment
Segmentation and restrictive policies can reduce the spread of an internal compromise.
Frequently Asked Questions
Managed IT support FAQs
What is a managed firewall service?
It is an ongoing service where Hozit monitors, maintains and administers a supported firewall environment.
Can Hozit supply firewall hardware?
Yes. We can source suitable firewall appliances, subscriptions and related services.
Which firewall brands do you support?
Support depends on scope, but selected Fortinet, Sophos, Cisco, Palo Alto, WatchGuard, SonicWall, pfSense, OPNsense, Ubiquiti and MikroTik platforms can be considered.
Can you replace our current firewall?
Yes. We assess the existing configuration and perform a controlled migration to a suitable replacement.
Do you configure site-to-site VPNs?
Yes. We connect offices, branches, cloud environments and approved partner networks.
Do you provide remote-access VPN?
Yes. Remote users can receive encrypted access to approved internal resources.
Can VPN access use multi-factor authentication?
Yes, where supported by the selected firewall and identity platform.
Do you monitor VPN tunnels?
Yes. Managed services can include availability monitoring and failure alerts.
Can you block inappropriate websites?
Yes. Supported web-filtering controls can block selected categories and malicious sites.
Can you control applications such as streaming or peer-to-peer traffic?
Yes. Supported application-control features can identify and restrict selected traffic.
Do you provide intrusion prevention?
Yes. Supported firewalls can detect and block known attack patterns.
Can you segment our network?
Yes. We can separate users, servers, voice, CCTV, IoT and guest networks.
Can you secure our guest Wi-Fi?
Yes. Guest traffic can be isolated from internal systems.
Do you manage firewall rules?
Yes. We create, review, document and remove rules through controlled change procedures.
Will you update the firewall firmware?
Yes. Managed support can include firmware planning and controlled updates.
Do you back up firewall configurations?
Yes. Recoverable configuration backups are maintained for supported devices.
Can you provide firewall reports?
Yes. Reports can cover availability, traffic, threats, applications, VPN and system health.
Can you configure dual internet connections?
Yes. Supported firewalls can use failover, load balancing or SD-WAN.
Can you connect our firewall to AWS or Azure?
Yes. Site-to-site VPN and supported cloud-connectivity options can be configured.
How do we get started?
We begin with a firewall and network-security assessment.
Related Services
Build a stronger technology environment
Cyber Security
Combine firewall protection with broader security controls and monitoring.
Explore Cyber Security →Network Design
Build secure LAN, WAN, VLAN and branch infrastructure.
Explore Network Design →AWS & Azure Cloud
Connect offices securely to public-cloud environments.
Explore AWS & Azure Cloud →Server Support
Protect and maintain the servers behind the firewall.
Explore Server Support →VoIP Phone Systems
Prioritise and secure voice traffic across business networks.
Explore VoIP Phone Systems →Backup & Disaster Recovery
Prepare recovery capabilities for cyber incidents and outages.
Explore Backup & Disaster Recovery →Improve the reliability and security of your IT environment
Speak to Hozit about your users, infrastructure, support challenges and technology priorities.