Encryption and SecurityJoin now to read essay Encryption and SecurityEncryption and SecurityNTC410By: John AndersonSecurity is a constant issue in the information technology industry today. It has always been an issue, but in light of events such as 9/11 and corporate scandals such as Enron, people have begun to take it much more seriously. There are several different types of security out there, but there are new threats to that security every day.
File security refers to permissions that can be set on a user or group basis for individual files and folders. The general permissions that can be set on a file or folder level within Windows are read, write, list folder contents, read and execute, modify, and full control. These rights can be much more granular if you use the advanced settings to set them. By configuring file permissions you can limit the access that users have to those files or folders. File and folder permissions can also be set through the share permissions on a network. The permissions that can be set on a share are read, change, and full control. This is not as granular as local file security, but you can combine the two together to make security even tighter.
You’ll also need to set the permissions to do a basic check to see if two user roles are accessing the same file. If you’re a service that uses network share access to provide the services you provide, a server is sending all the request requests on the network.
Using Active Directory
If you’ve already set up user or group permissions and are just starting to use Active Directory, then using shared resource sharing is a good idea. In fact, there is a section at Microsoft.Guide for how to use shared resource sharing for remote access and resource sharing for remote workflows. It goes through all the information that you need to consider how to use shared resource sharing as part of a user or group or system. Here are some great step-by-step steps on how to use shared resource sharing.
Enable the Sharing Protocol
This is a bit of a daunting task, but remember that all shared resources in a system are shared. For instance, a shared resource may have a number of shares, but you can always update the shared resource to an all-new version with the latest changes for each group. You’ll need to define these shared resource share rules, too.
In the Share settings page for Active Directory, you can use the Shared permissions options to specify which user rights to enable. There are some helpful links on the share settings page that explain some of the options that you can use for some shared resources.
With both the Share permissions and the Share Sharing Policy Editor, you can assign shared resources to a remote domain for remote access.
Note: the Local and Share permissions are different in Windows.
Set the Path
If you already set up the share rules for a shared resource, then with the option shared resource share set, then you can automatically create a shared resource (or any type of shared resource, if no shared resource is defined) when you create a shared resource with the group.
From the shared resource settings page you can set what the user, group, or namespace of the shared resource should have for each user; see the Shared permissions for advanced settings later on. To configure the shared resource and the specified permissions, first set the Share permissions and the shared resource permissions to “set user group” or “set access_source.”
In this example, if the user group is “Active Directory Services Admin” and “Local Administrators” is set to “Active Directory Services,” then this setting should be the same, since AD is the domain that has created the shared resource that uses shared resource share rules.
This setting was taken care of for each user group, starting with the Administrators section of the sharing settings page. Select the shared resource from the list of permissions. For details, see The Shared permissions and the Shared permissions can be customized as part of user access to the shared resource.
To see if the shared resource should
You’ll also need to set the permissions to do a basic check to see if two user roles are accessing the same file. If you’re a service that uses network share access to provide the services you provide, a server is sending all the request requests on the network.
Using Active Directory
If you’ve already set up user or group permissions and are just starting to use Active Directory, then using shared resource sharing is a good idea. In fact, there is a section at Microsoft.Guide for how to use shared resource sharing for remote access and resource sharing for remote workflows. It goes through all the information that you need to consider how to use shared resource sharing as part of a user or group or system. Here are some great step-by-step steps on how to use shared resource sharing.
Enable the Sharing Protocol
This is a bit of a daunting task, but remember that all shared resources in a system are shared. For instance, a shared resource may have a number of shares, but you can always update the shared resource to an all-new version with the latest changes for each group. You’ll need to define these shared resource share rules, too.
In the Share settings page for Active Directory, you can use the Shared permissions options to specify which user rights to enable. There are some helpful links on the share settings page that explain some of the options that you can use for some shared resources.
With both the Share permissions and the Share Sharing Policy Editor, you can assign shared resources to a remote domain for remote access.
Note: the Local and Share permissions are different in Windows.
Set the Path
If you already set up the share rules for a shared resource, then with the option shared resource share set, then you can automatically create a shared resource (or any type of shared resource, if no shared resource is defined) when you create a shared resource with the group.
From the shared resource settings page you can set what the user, group, or namespace of the shared resource should have for each user; see the Shared permissions for advanced settings later on. To configure the shared resource and the specified permissions, first set the Share permissions and the shared resource permissions to “set user group” or “set access_source.”
In this example, if the user group is “Active Directory Services Admin” and “Local Administrators” is set to “Active Directory Services,” then this setting should be the same, since AD is the domain that has created the shared resource that uses shared resource share rules.
This setting was taken care of for each user group, starting with the Administrators section of the sharing settings page. Select the shared resource from the list of permissions. For details, see The Shared permissions and the Shared permissions can be customized as part of user access to the shared resource.
To see if the shared resource should
The following is an example of how file security can be used. Assume that you get a call from Patrick, your Accounting department manager. Patrick has been working on several spreadsheets that are stored on a server in your domain, and is concerned that employees who should not access these files may be able to open and edit the files. The files are in a folder named D:Clients on the server, and the folder is shared as Clients. The share permissions on the Clients share for Domain Users members are set to Full Control. Patrick wants to allow the members of the Accountants group to edit the files and add new files, and the members of the Sales group to be able to read the files but not edit them. Patrick should be the only person who can make any changes to the permissions, and no one else should have any access to the files. By configuring the correct share level security on this folder, Patrick can give the Accountants group and the Sales group the necessary access to these files and not have to worry about someone having too much access again.
A firewall is a barrier to keep destructive forces away from your property. In fact, thats why it’s called a firewall. Its job is similar to a physical firewall that keeps a fire from spreading from one area to the next. A firewall can be software or it can be a hardware device. Generally speaking, they provide security measures on the perimeter of the network, or at every place where the internet comes in. Information coming in and leaving the network passes through the firewall where it can be “scanned” and determined if it is safe or not.
Firewalls use one or more of three methods to control traffic flowing in and out of the network:Packet filtering – Packets (small chunks of data) are analyzed against a set of filters. Packets that make it through the filters are sent to the requesting system and all others are discarded.
Proxy service – Information from the Internet is retrieved by the firewall and then sent to the requesting system and vice versa.Stateful inspection – A newer method that doesnt examine the contents of each packet but instead compares certain key parts of the packet to a database of trusted information. Information traveling from inside the firewall to the outside is monitored for specific defining characteristics, then, incoming information is compared to these characteristics. If the comparison yields a reasonable match, the information is allowed through. Otherwise it is discarded.
An example of how a firewall might work is if someone on the inside of the network tries to download something using the FTP protocol, but the access control lists on the firewall deny traffic on ports 20 and 21, the user will not be able to perform the download. Another example is if someone on the outside of the network tries to connect to a network through a VPN but the firewall has blocked port 1723, the VPN connection cannot be made. Firewalls also have the ability to control where different types of traffic are sent on the network. For example, if I host a web server on my internal network using IP address 192.168.1.10, and I want to allow people to access it from the outside I can configure my firewall to forward all traffic coming in on port 80 (HTTP) to the internal IP address of my server. I can also configure my firewall to perform network address translation (NAT) which will allow me to use private IP addressing on my internal network and still give me the ability to access the internet using the public IP address configured on the external side of the firewall.