Alle 13:24, martedì 9 luglio 2002, Karen Almeida ha scritto:
OK, that raises yet another ?. How do you close ports?
Deactivating the network service you do not need. For example by editing /etc/inetd.conf and commenting out everything you do not need, or just turning of inetd from within yast2. You can configure inetd from within yast2 any way. You could also stop every standalone service you do not need, for example apache (web server), or ssh, using the runlevel editor. Next question (I guess): what is a runlevel? You should read "man inittab" and /etc/inittab only (Do not edit /etc/inittab if you do not know what you are doing!). A runlevel is a "level" of the system. If you are in one runlevel, some services are on, if you move on another runlevel, some other services are on. Still about security: netstat -a let you know what ports are listening. Moreover: there is a script called hardensuse, that should disable EVERY service, so you need ot turn on those you really need. Praise
On Tuesday 09 July 2002 19:48, Praise wrote:
Next question (I guess): what is a runlevel?
You should read "man inittab" and /etc/inittab only (Do not edit /etc/inittab if you do not know what you are doing!). A runlevel is a "level" of the system. If you are in one runlevel, some services are on, if you move on another runlevel, some other services are on.
In Windows NT family (nt, 2000), one can create hardware/software profiles, such as in profile A, certain services/hardwares are deactivated. Whereas in profile B, services/hardwares which deactived in A are activated, while certain services/hardwares from profile A are deactived. Runlevel concept is quite similar to that. Regards, Verdi
Still about security: netstat -a let you know what ports are listening. Moreover: there is a script called hardensuse, that should disable EVERY service, so you need ot turn on those you really need.
Praise
On Tuesday 09 July 2002 13:48, Praise wrote:
Alle 13:24, martedì 9 luglio 2002, Karen Almeida ha scritto:
OK, that raises yet another ?. How do you close ports?
Next question (I guess): what is a runlevel?
You should read "man inittab" and /etc/inittab only (Do not edit /etc/inittab if you do not know what you are doing!). A runlevel is a "level" of the system. If you are in one runlevel, some services are on, if you move on another runlevel, some other services are on.
See also /etc/init.d/README Leen
participants (3)
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Leendert Meyer
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Praise
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Verdi March