No-ip не обновляет адрес.

rc-update add noip default

# ps -ax | grep noip2
 3105 ?        Ss     0:00 /usr/sbin/noip2 -c /etc/no-ip2.conf

ps -ax | grep noip2
 3105 ?        Ss     0:00 /usr/sbin/noip2 -c /etc/no-ip2.conf

#noip2 -S
1 noip2 process active.

Process 3105, started as noip2 -c /etc/no-ip2.conf, (version 2.1.9)
Using configuration from /etc/no-ip2.conf
Last IP Address set 0.0.0.0
Account xxxxxx@gmail.com
configured for:
	host  xxxxxx.ddns.net
Updating every 5 minutes via /dev/ppp0 with NAT enabled.

#rc-status
Runlevel: default
 syslog-ng  [  started  ]
 iptables   [  started  ]
 net.enp1s0 [  started  ]
 net.ppp0   [  started  ]
 openvpn    [  started  ]
 noip       [  started  ]

#ifconfig
ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1492
        inet 94.241.237.183  netmask 255.255.255.255  destination 217.9.147.97
        ppp  txqueuelen 3  (Point-to-Point Protocol)
        RX packets 3534  bytes 2676061 (2.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2985  bytes 550670 (537.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0