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Solaris Express Installation Guide: Planning for Installation and Upgrade
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Planning Network Security

Starting with the Solaris Express 7/06 release, the generic installation has been changed so that all network services except Secure Shell are disabled or restricted to respond to local requests only. This change minimizes the potential vulnerabilities a remote attacker might try to exploit. In addition, the change provides a base for customers to enable only the services they require.

For Solaris Express releases, the hardening changes are automatically applied whenever a fresh install is performed. This effect is achieved by invoking the netservices command from the SMF upgrade file found in /var/svc/profile. Behavior is unchanged if the system is upgraded.

Restricted Security Specifics

Numerous services are fully disabled. Other services are still enabled, but these services are restricted to local connections only. The Secure Shell remains fully enabled.

For example, the following table lists network services that, for the Solaris 10 11/06 release, are restricted to local connections.

Table 4-6 Solaris 10 11/06 SMF Restricted Services

Service

FMRI

Property

rpcbind

svc:/network/rpc/bind

config/local_only

syslogd

svc:/system/system-log

config/log_from_remote

sendmail

svc:/network/smtp:sendmail

config/local_only

smcwebserver

svc:/system/webconsole:console

options/tcp_listen

WBEM

svc:/application/management/wbem

options/tcp_listen

X server

svc:/application/x11/x11-server

options/tcp_listen

dtlogin

svc:/application/graphical-login/cde-login

dtlogin/args

ToolTalk

svc:/network/rpccde-ttdbserver:tcp

proto=ticotsord

dtcm

svc:/network/rpccde-calendar-manager

proto=ticits

BSD print

svc:/application/print/rfc1179:default

bind_addr=localhost

Revising Security Settings After Installation

With the restricted network security feature, all of the affected services are controlled by the Service Management Framework (SMF). Any individual network service can be enabled after an initial installation by using the svcadm and svccfg commands. The netservices(1M) command can be used to switch the service startup behavior.

For further information about revising security settings, see How to Create an SMF Profile in System Administration Guide: Basic Administration. See also the following man pages.

  • netservices(1M)

  • svcadm(1M)

  • svccfg(1M) commands.

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  Published under the terms fo the Public Documentation License Version 1.01. Design by Interspire