Removed CC_OLDGEOLITE and associated code so that all installations will now use the MaxMind GeoLite2 databases
Added more CLI options that work if csf is disabled
Added Include line support to 20 more /etc/csf/csf.* configuration files. See /etc/csf/readme.txt under “Include statement in configuration files” for the list of supported files
Added mangle and raw tables to csf –grep [IP] and modified output to show a new column with the table then the chain that a rule is in
Added mangle and raw tables to csf –status output and modified output to show a new header line with the table that a rule is in
Added new option USE_FTPHELPER. This enables the ftp helper via the iptables CT target on supporting kernels instead of the current method via /proc/sys/net/netfilter/nf_conntrack_helper and unrestricted use of RELATED state
Modified ICMP_IN/ICMP_OUT to only affect PING (echo-request), all other ICMP traffic is allowed (which can help network performance) unless otherwise blocked. This is for IPv4, it does not affect IPv6
Improved rule placement to prevent existing connections bypassing ICMP_IN_RATE/ICMP_OUT_RATE limits
Updated csf.conf documentation relating to the ICMP/PING settings
Added new option ICMP_TIMESTAMPDROP. For those with PCI Compliance tools that state that ICMP timestamps should be dropped, you can enable this option. Otherwise, there appears to be little evidence that it has anything to do with a security risk but can impact network performance, so should be left disabled by everyone else
csf and lfd now exit with status 1 on error or if disabled. However, this will not happen with csf if the CLI option used still works while disabled
USE_CONNTRACK is now enabled by default on new installations
Fixed DOCKER IPv6 warning message when DOCKER not enabled
Modified csf.blocklists for GREENSNOW to use https on existing and new installations
Added support for GeoLite2 databases from Maxmind for CC_*. These databases are significantly larger than the soon to be deprecated GeoLite ones stored in /var/lib/csf/
Added support for GeoLite2 databases from Maxmind for CC_LOOKUPS and CC6_LOOKUPS
Added new option: CC_OLDGEOLITE. This option is enabled by default to continue using the old GeoLite databases. See csf.conf for more information. This option will be removed in the near future so that all installations use the new GeoLite2 databases
GeoLite2 lookups now use the CSV files instead of the formatted Data files because the Perl dependencies for the MaxMind Perl modules that access the Data files are prohibitively excessive. We have developed our own fast binary search module to perform the required lookups on the CSV files for both IPv4 and IPv6
An advantage of the new GeoLite2 databases is that IPv6 lookups can now be done to the same level as IPv4: Country Code; Country; Region; City; ASN
Unified storage of GeoLite2 database to avoid duplication between CC_LOOKUPS and CC_* databases
Added new CC_LOOKUPS value of “4”. This option does not use the MaxMind databases directly for lookups. Instead it uses a URL-based lookup from a third-party provider at https://freegeoip.net and so avoids having to download and process the large databases. See csf.conf for more information and limitations
Modified CC_INTERVAL default to 14 days on new installations
Ensure MESSENGERV2 service will not start if using a valid cPanel account in MESSENGER_USER (must be non-cPanel account)
Create entry in /etc/aliases for “csf” if MESSENGERV2 is enabled on cPanel servers to reserve the account name
Added new feature: DOCKER support. This configures iptables rules to allow Docker containers to communicate through the host. This is currently in BETA testing. See csf.conf for more information. Thanks to Marcele for the rules
Removed redundant nat table check for ip6tables in Config.pm
Added missing WAITLOCK to iptables when processing advanced port filters in csf and lfd and checking csf status in UI
Added WAITLOCK, if enabled, to iptables-restore commands during FASTSTART
Server Check Report – removed ini_set check as so many scripts use ini_set nowadays. Updated text on various checks
Updated the postfix SMTP AUTH regex
Added new SSHD “maximum authentication attempts exceeded” regex
Set basic PATH before running csfpre.sh/csfpost.sh to avoid binary location issues
csf now runs csfpre.sh/csfpost.sh directly without forcing it through /bin/sh. If present, csf chmods the script 0700 and checks for a shebang. If the shebang is missing #!/bin/bash is added to the top. The script is then run
Added seventh parameter to regex.custom.pm to allow Cloudflare blocking if a CUSTOM regex is triggered (see latest regex.custom.pm in distro)
Rearranged UI tabs and shortened tab names. Moved quick actions to the top of the “csf” tab pane
Added “AUTH command used when not advertised” to the LF_EXIMSYNTAX regex check
Added new csf CLI cluster option: -ci, –cignore ip [comment] This will add the IP to each remote /etc/csf/csf.ignore member and then restart lfd. This has also been added to the UI
Fixed cluster grep output in UI
Modified MESSENGERV2 to support combined certificates+keys in cPanel v68+
Added triggered setting and, if applicable, temporary TTL to the “Blocked:” status in block alert emails
Added “wildcard” option to “Search System Logs” UI to use ZGREP to search the specified log with a wildcard suffix
ZGREP option added to csf.conf which must point to the zgrep binary
Added git binaries to csf.pignore on cPanel servers for upcoming v72/74 features
Added new configuration option LF_APACHE_ERRPORT. This option is used to determine if the Apache error_log format contains the client port after the client IP. By default it is set to autodetect
