In addition to installing NCP packet signature, you can use other NetWare security features and protective measures to keep client workstations secure. The following security guidelines are suggested for client workstations:
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Use only the most current versions of system software, NetWare Client software, and patches.
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Check for viruses regularly.
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Use the SECURITY utility to detect vulnerable access points to the server.
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Enable intruder detection and lockout.
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Advise users to log out when they leave their client workstations unattended.
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Enable NCP packet signature level 3 on all unattended client workstations.
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Require unique passwords of at least five characters on all accounts, and establish forced password changes at least every three months.
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Limit the number of grace logins.
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Limit the number of concurrent connections.
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Enforce login time restrictions and station restrictions.