# DCD How-Tos

You can configure Network Security Groups (NSGs) via the DCD and associate it with [<mark style="color:blue;">Network Interface Cards (NICs)</mark>](https://docs.ionos.com/cloud/support/general-information/glossary-of-terms#network-interface-card-nic) or [<mark style="color:blue;">Virtual Machine (VM)</mark>](https://docs.ionos.com/cloud/support/general-information/glossary-of-terms#virtual-machine-vm) resources.

{% hint style="info" %}
**Prerequisites:** Contract administrators and owners can create, access, manage, and use NSGs without additional permissions. For more information, see [<mark style="color:blue;">Set User Privileges for Network Security Groups</mark>](/cloud/security/network-security-groups/how-tos/set-user-privileges.md).
{% endhint %}

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Set User Privileges for Network Security Groups</strong></mark></td><td>Learn how to set User privileges for security groups.</td><td><a href="/pages/NalBpAuRpDBphjJ4kyVS">/pages/NalBpAuRpDBphjJ4kyVS</a></td></tr><tr><td><mark style="color:blue;"><strong>Create Default or Custom Network Security Groups</strong></mark></td><td>Learn how to create a Default or Custom NSG.</td><td><a href="/pages/em2qmA3FFauUvET8kkBx">/pages/em2qmA3FFauUvET8kkBx</a></td></tr><tr><td><mark style="color:blue;"><strong>Create Rules</strong></mark></td><td>Learn how to define rules.</td><td><a href="/pages/oLOBZNShMmM9Slbynto9">/pages/oLOBZNShMmM9Slbynto9</a></td></tr><tr><td><mark style="color:blue;"><strong>View Rules</strong></mark></td><td>Learn how to view rules associated with an NSG.</td><td><a href="/pages/d354dD71qmzbLa4hILAn">/pages/d354dD71qmzbLa4hILAn</a></td></tr><tr><td><mark style="color:blue;"><strong>Modify Rules</strong></mark></td><td>Learn how to modify associated rules.</td><td><a href="/pages/8Vx9eDun1U5i4F4Wf4D7">/pages/8Vx9eDun1U5i4F4Wf4D7</a></td></tr><tr><td><mark style="color:blue;"><strong>Delete Rules</strong></mark></td><td>Learn how to delete associated rules.</td><td><a href="/pages/5P6dh095MO5Rf40aPXvY">/pages/5P6dh095MO5Rf40aPXvY</a></td></tr><tr><td><mark style="color:blue;"><strong>Convert Custom Network Security Group to Default</strong></mark></td><td>Learn how to convert a Custom NSG to a Default NSG and vice versa.</td><td><a href="/pages/zrhHG4NiLX7S2P6cmyZl">/pages/zrhHG4NiLX7S2P6cmyZl</a></td></tr><tr><td><mark style="color:blue;"><strong>Attach a Server or NIC to a Network Security Group</strong></mark></td><td>Learn how to attach an NSG to a server or an NIC.</td><td><a href="/pages/agDCRgGz8OKf4Oj4JmwK">/pages/agDCRgGz8OKf4Oj4JmwK</a></td></tr><tr><td><mark style="color:blue;"><strong>Detach a Server or NIC from a Network Security Group</strong></mark></td><td>Learn how to detach an NSG from a server or NIC.</td><td><a href="/pages/solmImYkUVthjYWv4Cbf">/pages/solmImYkUVthjYWv4Cbf</a></td></tr><tr><td><mark style="color:blue;"><strong>View Network Security Groups</strong></mark></td><td>Learn how to retrieve a list of all the NSGs that are associated with a data center.</td><td><a href="/pages/ny4Yz5OpMUA0lm9YuToP">/pages/ny4Yz5OpMUA0lm9YuToP</a></td></tr><tr><td><mark style="color:blue;"><strong>Update Network Security Groups</strong></mark></td><td>Learn how to update an NSG.</td><td><a href="/pages/uD9rSy2MMR8pe1TJP50s">/pages/uD9rSy2MMR8pe1TJP50s</a></td></tr><tr><td><mark style="color:blue;"><strong>Delete Network Security Groups</strong></mark></td><td>Learn how to delete your NSGs.</td><td><a href="/pages/oDMndbwf8XYFIF5aUKla">/pages/oDMndbwf8XYFIF5aUKla</a></td></tr></tbody></table>


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