On Tue, 27 Jul 1999, Georges-Henry Portefait wrote:
Hi,
I'm linked to the internet trough a cable modem ( motorola cyber surf)
what I would like to know is:
Can I protect myself against potetial intruders ??
See http://gtoft.dynip.com/security - this is the bare minimum.
What is my level of exposure.
Huge - they have all the time they need to attack.
I have a single machine which is my workstation at the end of this install, I never work as root except when needed root has a complex passsword remote login is forbidden for root , "." is not in the root password that s all for now.
I'm a full believer in the concept of a bastion host. That is a machine that is heavily fortified to protect the machines on the inside. Set up an old 486 as a router/firewall and put your workstation on a LAN inside the firewall. That gives the attackers twice the number of computers to attack, and gives you the opportunity to receive a mail warning if the firewall is compromised. My firewall runs a cron job to check the integrity of key files (passwd, group, shadow) once a minute, and if they change, I get e-mail.
the ISP is supposed to protect my comms between him and I.
My ISP protects all comms, too - so an attacker has all the privacy they need to break in. Been there twice.
I m looking for any kind of advices.
They are out to get you.
regards
GH Portefait
-- "Computers are like air conditioners - they stop working properly when you open Windows"
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