2020-02-05 18:18:57 +00:00
|
|
|
# Utility Services
|
|
|
|
|
|
2023-03-29 05:47:27 +01:00
|
|
|
## Overview
|
2020-02-05 18:18:57 +00:00
|
|
|
|
|
|
|
|
Variety of convenience services for carrying out common networking changes.
|
|
|
|
|
|
|
|
|
|
The following services are provided as utilities:
|
2023-03-29 05:47:27 +01:00
|
|
|
|
2020-02-05 18:18:57 +00:00
|
|
|
* UCARP
|
|
|
|
|
* IP Forward
|
|
|
|
|
* Default Routing
|
|
|
|
|
* Default Muticast Routing
|
|
|
|
|
* Static Routing
|
|
|
|
|
* SSH
|
|
|
|
|
* DHCP
|
|
|
|
|
* DHCP Client
|
|
|
|
|
* FTP
|
|
|
|
|
* HTTP
|
|
|
|
|
* PCAP
|
|
|
|
|
* RADVD
|
|
|
|
|
* ATD
|
|
|
|
|
|
|
|
|
|
## Installation
|
|
|
|
|
|
|
|
|
|
To install the functionality of the previously metioned services you can run the following command:
|
2023-03-29 05:47:27 +01:00
|
|
|
|
2020-02-05 18:18:57 +00:00
|
|
|
```shell
|
|
|
|
|
sudo apt-get install isc-dhcp-server apache2 libpcap-dev radvd at
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## UCARP
|
|
|
|
|
|
2023-03-29 05:47:27 +01:00
|
|
|
UCARP allows a couple of hosts to share common virtual IP addresses in order to provide automatic failover. It is a
|
|
|
|
|
portable userland implementation of the secure and patent-free Common Address Redundancy Protocol (CARP, OpenBSD's
|
|
|
|
|
alternative to the patents-bloated VRRP).
|
2020-02-05 18:18:57 +00:00
|
|
|
|
2023-03-29 05:47:27 +01:00
|
|
|
Strong points of the CARP protocol are: very low overhead, cryptographically signed messages, interoperability between
|
|
|
|
|
different operating systems and no need for any dedicated extra network link between redundant hosts.
|
2020-02-05 18:18:57 +00:00
|
|
|
|
|
|
|
|
### Installation
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
sudo apt-get install ucarp
|
|
|
|
|
```
|
