Guide to the Secure Configuration of Debian 12
Rules, Groups, and Values defined within the XCCDF Benchmark
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Secure Session Configuration Files for Login Accounts
When a user logs into a Unix account, the system configures the user's session by reading a number of files. Many of these files are located in the...Group -
Maximum login attempts delay
Maximum time in seconds between fail login attempts before re-prompting.Value -
Maximum concurrent login sessions
Maximum number of concurrent sessions by a userValue -
Account Inactivity Timeout (seconds)
In an interactive shell, the value is interpreted as the number of seconds to wait for input after issuing the primary prompt. Bash terminates afte...Value -
Interactive users initialization files
'A regular expression describing a list of file names for files that are sourced at login time for interactive users'Value -
Ensure that Root's Path Does Not Include Relative Paths or Null Directories
Ensure that none of the directories in root's path is equal to a single <code>.</code> character, or that it contains any instances that lead to re...Rule Unknown Severity -
Sensible umask
Enter default user umaskValue -
NFS and RPC
The Network File System is a popular distributed filesystem for the Unix environment, and is very widely deployed. This section discusses the circ...Group -
Disable All NFS Services if Possible
If there is not a reason for the system to operate as either an NFS client or an NFS server, follow all instructions in this section to disable sub...Group -
Disable netfs if Possible
To determine if any network filesystems handled by netfs are currently mounted on the system execute the following command: <pre>$ mount -t nfs,nfs...Group -
net.ipv6.conf.all.max_addresses
Maximum number of autoconfigured IPv6 addressesValue -
net.ipv6.conf.all.router_solicitations
Accept all router solicitations?Value -
net.ipv6.conf.default.accept_ra_defrtr
Accept default router in router advertisements?Value -
net.ipv6.conf.default.accept_ra_pinfo
Accept prefix information in router advertisements?Value -
net.ipv6.conf.default.accept_ra_rtr_pref
Accept router preference in router advertisements?Value -
net.ipv6.conf.default.accept_redirects
Toggle ICMP Redirect Acceptance By DefaultValue -
net.ipv6.conf.default.accept_source_route
Trackers could be using source-routed packets to generate traffic that seems to be intra-net, but actually was created outside and has been redirec...Value -
net.ipv6.conf.default.autoconf
Enable auto configuration on IPv6 interfacesValue -
net.ipv6.conf.default.max_addresses
Maximum number of autoconfigured IPv6 addressesValue -
net.ipv6.conf.default.router_solicitations
Accept all router solicitations by default?Value
Node 2
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