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Which Linux network services pose a security threat?
This is a discussion on Which Linux network services pose a security threat? within the Linux software forums, part of the Linux Getting Started category; Hi gurus! I was asked to close all insecure or network services pose a security threat for Linux server. I ...
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07-18-2006, 02:35 AM
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Which Linux network services pose a security threat?
Hi gurus!
I was asked to close all insecure or network services pose a security threat for Linux server. I was also reading somewhere that almost all network service is insecure so I must turning off unused services or not so important one. The idea is to keep exploits for services and patched under control… The only problem is I don’t know which Linux network services pose a security threat? Our server setup is CentOS linux (RHEL clone) and a 2 webserver and 1 mysql server. 
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07-19-2006, 11:50 PM
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Any network service which pass usernames/passwords over a network unencrypted is insecure. Examples:
telnet ftp all R services (rlogin/rsh) etc. Disable these services. If you are using RHEL/Fedora Core/CentOS, tyep ntsysv command to disable all these services: Code:
ntsysv
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07-20-2006, 07:59 PM
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If you are using following services use firewall:
yservices (yppasswdd/ypserv/ypxfrd) - NIS finger, identd Network dump services (netdump/netdump-server) Linux/UNIX Network file sharing (nfs/portmap etc) sendmail Samba
__________________
Rocky Jr. You may have my body & soul, but you will never touch my pride! If you have knowledge, let others light their candles at it. Certified to work on HP-UX / Sun Solaris / RedHat
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