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  • Route RPKI validation April 1st, 2022
    RPKI is a security framework by which network owners can validate and secure the critical route updates or Border Gateway Protocol (BGP) announcements between public Internet networks. BGP is essentially the central nervous system of the Internet and one of its fundamental building blocks. The main function of BGP is to facilitate efficient routing between Autonomous Systems (AS), by building and maintaining the Internet routing table. The Internet routing table is effectively the navigation system of the Internet and without it, traffic would be unable to flow between its constituent networks. Unfortunately, routing equipment alone cannot distinguish between legitimate and malicious routing announcements,...
  • RIPE – Atlas Anchor February 17th, 2022
    We have become an even more integral part of the RIPE Atlas project by hosting an anchor, a device that allows for latency analysis of traffic between autonomous systems.https://atlas.ripe.net/probes/7073/RIPE Atlas anchors play an integral role in the RIPE Atlas network by acting both as enhanced RIPE Atlas probes with more measurement capacity, as well as regional measurement targets within the greater RIPE Atlas network. Anchors are able to perform many more measurements than a regular RIPE Atlas probe, and the large amount of data they collect is made available to everyone. In addition, anchors act as powerful targets that can...
  • MANRS June 20th, 2020
    GOLINE firmly believes in initiatives to protect networks, improve security and resilience of the global routing system. Therefore we decided to support the MANRS project and join as participants.Mutually Agreed Norms for Routing Security (MANRS) is a global initiative, supported by the Internet Society, that provides crucial fixes to reduce the most common routing threats. MANRS offers specific actions via four programs for Network Operators, Internet Exchange Points, CDN and Cloud Providers, and Equipment Vendors. Requirements for Participation Please read the full MANRS Actions document before applying. You can become a participant if you meet these requirements: You (or your company) support...

ConfigServer CSF command line

Paolo Caparrelli Linux 22 June 2022

This article covers some useful CSF SSH Command Line Commands in a “cheat sheet” format.

Command Description Example
csf -s Start the firewall rules root@server[~]#csf -s
csf -f Flush/Stop firewall rules (note: lfd may restart csf)
root@server[~]#csf -f
csf -r Restart the firewall rules root@server[~]#csf -r
csf -a [IP.add.re.ss] [comment] Allow an IP and add to /etc/csf/csf.allow
root@server[~]#csf -a 187.33.3.3 Home IP Address
csf -tr [IP.add.re.ss] Remove an IP from the temporary IP ban or allow list.
root@server[~]#csf -tr 66.192.23.1
csf -tf Flush all IPs from the temporary IP entries
root@server[~]#csf -tf
csf -d [IP.add.re.ss] [comment] Deny an IP and add to /etc/csf/csf.deny root@server[~]#csf -d 66.192.23.1 Blocked This Guy
csf -dr [IP.add.re.ss] Unblock an IP and remove from /etc/csf/csf.deny root@server[~]#csf -dr 66.192.23.1
csf -df Remove and unblock all entries in /etc/csf/csf.deny root@server[~]#csf -df
csf -g [IP.add.re.ss] Search the iptables and ip6tables rules for a match (e.g. IP, CIDR, Port Number) root@server[~]#csf -g 66.192.23.1
csf -t  Displays the current list of temporary allow and deny IP entries with their TTL and comment  root@server[~]#csf -t


Whitelisting
 an IP Address

In order to prevent specific IP from being blocked, even for a temporary deny, you need to list their IP address in the files csf.ignore and csf.allow. The first step is to enable IGNORE_ALLOW in csf.conf. The value for IGNORE_ALLOW will appear as “0”, you will need to adjust it to “1” and restart csf and lfd.

This will allow lfd to reference csf.ignore. If you add an IP address to csf.ignore, the IP address will no longer be checked by lfd and failed login attempts will not trigger temporary denies.

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