TID: Mystic BBS 1.12 A46   
   MSGID: 3:770/100 1767a03c   
   REPLY: 12.fidonet_binkd@1:142/103 24fed020   
   TZUTC: 1200   
   On 10 May 2021 at 04:39p, Brian Rogers pondered and said...   
       
    BR> /path/to/iptables -I INPUT 1 -s x.x.x.x -p tcp --dport 24554 -j DROP    
    BR> where x.x.x.x = remote IP.   
      
   Many thanks for the info / help :)   
      
   --- Mystic BBS v1.12 A46 2020/08/26 (Windows/32)   
    * Origin: Agency BBS | Dunedin, New Zealand | agency.bbs.nz (3:770/100)   
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