Update ipmi.md

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@ -25,6 +25,25 @@ To enable ipmi IPMI BMC follow these steps:
$ ipmitool -I lanplus -U admin -P admin -H pikvm power on
```
# IPMI SoL
IPMI supports the ability to get console access to the server using Serial-over-LAN. Pi-KVM can act as a proxy for your server's COM port.
To use this feature, you will need a USB-COM adapter that you need to connect to the Pi-KVM. The COM port of the adapter need to be connected to the server. As with IPMI BMC, you need to configure `kvmd-vnc` and add the following configuration to `/etc/kvmd/override.yaml`:
```yaml
ipmi:
sol:
device: /dev/ttyUSB0 # Path of your USB-COM adapter
speed: 115200
```
After enabling `kvmd-ipmi`, all requests that it receives over the network regarding the COM port will be forwarded to your server. For example:
```
$ ipmitool -I lanplus -U admin -P admin -H pikvm sol activate
```
# Redfish
[Redfish](https://www.dmtf.org/standards/redfish) is a more modern server management protocol designed to replace IPMI.
It is based on HTTP and fixes many security issues. If possible, we recommend using it instead of IPMI, or using the [KVMD API](api.md).