New methods of breaking into corporate networks are resulting in major losses. This book provides the latest information on how to guard against attacks and informs the IT manager of the products that can detect and prevent break-ins. Crucial concepts such as authentication and encryption are explained, enabling the reader to understand when and where these technologies will be useful. Due to the a. Read more Show all links. Allow this favorite library to be seen by others Keep this favorite library private. Find a copy in the library Finding libraries that hold this item Internet security.
This book provides the information on how to guard against attacks and informs the IT manager of the products that can detect and prevent break-ins.
Server Administrator Overview
It also explains concepts such as authentication and encryption. Reviews Editorial reviews. Publisher Synopsis "Security must become a fabric of the network that strikes the balance between security and usability. User-contributed reviews Add a review and share your thoughts with other readers. Be the first. Add a review and share your thoughts with other readers. Computer networks -- Security measures. Computer security. Linked Data More info about Linked Data. The Internet and Security; Chapter 2. The Security Review Process; Chapter 3.
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Cryptography; Chapter 4. Secure Networks; Chapter 5. Authentication and Authorization; Chapter 7. Public Key Infrastructure; Chapter 8. Messaging Security; Chapter 9. If the default protocols work for the majority of your devices, you do not need to change them. For devices that should use a non-default protocol, you can change the protocol in the device properties for the specific devices. However, if you typically use a protocol that is not the Security Manager default for example, if you use a token management server TMS for your routers , you should change the default setting.
In the Device Connection Settings group, select the most appropriate protocols for each type of device. You can also change the default connection time out and retry settings.
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Security Manager comes packaged with RME, which you can use to manage the operating systems on your devices. If you use Performance Monitor to monitor your devices, you can identify the servers to Security Manager.
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However, with routers, you can select which types of policies are managed by Security Manager. You can manage other parts of the router configuration using other tools including the router's CLI. By default, all security-related router policies are managed. Security Manager can send e-mail notifications for several types of events such as deployment job completion, activity approval, or ACL rule expiration.
To enable e-mail notifications, you must configure an SMTP server that Security Manager can use for sending the e-mails. Users can override the defaults when managing deployment jobs and activities. Rules expire only if you configure them with expiration dates. This address is used as the default target for some notifications such as deployment job completion. The SMTP server cannot require user authentication for sending e-mail messages. Also, enter an e-mail address that CiscoWorks can use for sending e-mails.
This does not have to be the same e-mail address that you configure for Security Manager to use when sending notifications. The workflow mode you choose depends on your organizational structure and the level of control you wish to have over changes to the network. The following topics help you understand the different workflow modes and how to configure the desired mode:. Workflow mode is an advanced mode of operation that imposes a formal change-tracking and change-management system. Workflow mode is suitable for organizations in which there is division of responsibility among security and network operators for defining policies and deploying those policies to devices.
For example, a security operator might be responsible for defining security policies on devices, another security operator might be responsible for approving the policy definitions, and a network operator might be responsible for deploying the resulting configurations to a device.
10.4 Incident handling procedures
This separation of responsibility helps maintain the integrity of deployed device configurations. You can use Workflow mode with or without an approver. When using Workflow mode with an approver, device management and policy configuration changes performed by one user are reviewed and approved by another user before being deployed to the relevant devices. When using Workflow mode without an approver, device and policy configuration changes can be created and approved by a single user, thus simplifying the change process.
An activity is essentially a proposal to make configuration changes. The changes made within the activity are applied only after the activity is approved by a user with the appropriate permissions. An activity can either be submitted to another user for review and approval Workflow mode with an activity approver , or it can be approved by the current user Workflow mode without an activity approver.
To do this, a user must create a deployment job. A deployment job defines the devices to which configurations will be deployed, and the deployment method to be used. A deployment job can either be submitted to another user for review and approval Workflow mode with a deployment job approver , or it can be approved by the current user Workflow mode without a job approver. Deployment preferences can be configured with or without job approval.
Some organizations have no division of responsibility between users when defining and administering their VPN and firewall policies.
These organizations can work in non-Workflow mode, which is the default mode of operation. When using non-Workflow mode, there is no need to create activities and jobs. This activity is transparent to the user and does not need to be managed in any way.
In addition, when you save and deploy configuration changes, Security Manager creates a job for you as well. Like activities, jobs are transparent and do not need to be managed. When using non-Workflow mode, multiple users with the same username and password cannot be logged into Security Manager at the same time. If another user logs in with the same username and password while you are working, your session will be terminated and you will have to log in again.
Security Manager creates a deployment job for you when you deploy configuration changes. Select the job in the Deployment Manager and click Discard. If the job has already been deployed, you can abort the job by selecting Abort. Yes, but only if each one has a different username. If a user with the same username logs into Security Manager, the first user is automatically logged out. You will receive a message indicating that the devices are locked.
You can change the workflow mode that Security Manager enforces if you have the appropriate administrator permissions.
Tableau and your data
Changing the workflow mode has significant effects on users. Before making a change, be sure to understand the following:. You do not have to do anything to jobs that are in the failed state. Approve or delete the editable activities, and then turn Workflow mode off again. However, Security Manager hides and automatically manages activities when in non-Workflow mode.
If you select Enable Workflow to use Workflow mode , you can also select these options:. These are the default e-mail addresses for the e-mail sender that is, Security Manager , the approvers, and another person or e-mail alias who should be notified when deployment jobs are complete. You also have the options to include the job deployer when sending notifications of job status, and to require that e-mail notifications are sent for deployment job status changes. Skip to content Skip to footer. Home Support. Book Contents Book Contents.