fail2ban bad ip database: ip 91.121.26.184

# Nmap 6.40 scan initiated Fri Nov 16 01:06:01 2018 as: /usr/bin/nmap -sU -sS -O 91.121.26.184
Nmap scan report for ks39948.kimsufi.com (91.121.26.184)
Host is up (0.0076s latency).
Not shown: 1985 closed ports
PORT      STATE    SERVICE
21/tcp    open     ftp
22/tcp    open     ssh
25/tcp    open     smtp
53/tcp    open     domain
80/tcp    open     http
110/tcp   open     pop3
143/tcp   open     imap
443/tcp   open     https
445/tcp   filtered microsoft-ds
587/tcp   open     submission
993/tcp   open     imaps
995/tcp   open     pop3s
10000/tcp open     snet-sensor-mgmt
53/udp    open     domain
10000/udp open     ndmp
Aggressive OS guesses: Linux 2.6.26 - 2.6.35 (95%), Linux 3.0 (94%), Linux 3.0 - 3.9 (94%), Linux 2.6.23 - 2.6.38 (93%), Linux 2.6.32 (92%), Netgear DG834G WAP or Western Digital WD TV media player (92%), Linux 2.6.32 - 3.9 (92%), HP P2000 G3 NAS device (91%), Linux 2.6.8 - 2.6.27 (91%), Linux 2.6.22 (91%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 8 hops

OS detection performed. Please report any incorrect results at http://nmap.org/submit/ .
# Nmap done at Fri Nov 16 01:24:14 2018 -- 1 IP address (1 host up) scanned in 1093.53 seconds