Firewall
Firewall reduces the risk of viruses infecting your computer by blocking ports and Internet protocols that contribute to the distribution of the most malicious programs, prevents unauthorized sending of data to the network, and also excludes the possibility of connecting to your subscriber device from another subscriber device without your knowledge.
Firewall provides information security in accordance with the rules restricting access via Internet protocols:
Rules | Source (of request) | Destination (of request) | Services (protocols) | Action | Description | Description With Firewall | Without Firewall |
|---|---|---|---|---|---|---|---|
Rule 1 | A1 IP addresses | All IP addresses | TCP/135 - TCP/139 | Block | Prevents unnecessary and often malicious connections (NetBIOS EPMAP, Microsoft RPC Locator Service, Microsoft-DS (SMB, Active Directory, Sasser network worm, Agobot, Zobot network worm, etc.). | x | + |
Rule 2 | A1 IP addresses | A1 IP addresses | All protocols | Block | Prevents direct communication between individual client devices on the A1 network. | x | + |
Rule 3 | A1 IP addresses | All IP addresses | All protocols | Allow | Allows any A1 client to initiate a connection to the Internet. | + | + |
Rule 4 | All IP addresses | A1 IP addresses | All protocols | Block | Denies any connections requested from the Internet. | x | + |
The subscription fee and service connection fee are not charged.
The service is provided to all corporate clients of the company.
The service can be connected/disabled in one of the following ways:
- USSD request *135*5*2# call;
- Personal account;
- On the basis of a standard application that can be transferred to the official office of agents upon presentation of an identity document.