The DHCP client must be disabled if not needed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| RHEL-06-000292 | RHEL-06-000292 | RHEL-06-000292_rule | Low |
| Description |
|---|
| DHCP relies on trusting the local network. If the local network is not trusted, then it should not be used. However, the automatic configuration provided by DHCP is commonly used and the alternative, manual configuration, presents an unacceptable burden in many circumstances. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 6 Security Technical Implementation Guide | 2013-02-05 |
Details
| Check Text ( C-RHEL-06-000292_chk ) |
|---|
| To verify that DHCP is not being used, examine the following file for each interface. # /etc/sysconfig/network-scripts/ifcfg-[IFACE] Look for the following. BOOTPROTO=static and the following, substituting the appropriate values based on your site's addressing scheme. NETMASK=255.255.255.0 IPADDR=192.168.1.2 GATEWAY=192.168.1.1 If it does not, this is a finding. |
| Fix Text (F-RHEL-06-000292_fix) |
|---|
| For each interface [IFACE] on the system (e.g. eth0), edit "/etc/sysconfig/network-scripts/ifcfg-[IFACE]" and make the following changes. Correct the BOOTPROTO line to read. BOOTPROTO=static Add or correct the following lines, substituting the appropriate values based on your site's addressing scheme. NETMASK=255.255.255.0 IPADDR=192.168.1.2 GATEWAY=192.168.1.1 |