Unusual activity network manager CentOS 7. How to stop it?
Network Configuration
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 45.55.xx.xxx netmask 255.255.224.0 broadcast 45.55.63.255
inet6 fe80::601:94ff:fe94:9301 prefixlen 64 scopeid 0x20<link>
ether 04:01:94:94:93:01 txqueuelen 1000 (Ethernet)
RX packets 377928 bytes 38584549 (36.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 298834 bytes 1061519721 (1012.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::601:94ff:fe94:9302 prefixlen 64 scopeid 0x20<link>
ether 04:01:94:94:93:02 txqueuelen 1000 (Ethernet)
RX packets 6 bytes 480 (480.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10269 bytes 1825094 (1.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 40058 bytes 8361409 (7.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 40058 bytes 8361409 (7.9 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Problem (this never stop, using CPU and disk)
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> Auto-activating connection 'Wired connection 1'.
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: starting connection 'Wired connection 1'
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) started...
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) scheduled...
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) complete.
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) starting...
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: prepare -> config (reason 'none') [40 50 0]
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) successful.
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) complete.
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 3 of 5 (IP Configure Start) scheduled.
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 3 of 5 (IP Configure Start) started...
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: config -> ip-config (reason 'none') [50 70 0]
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> Activation (eth1) Beginning DHCPv4 transaction (timeout in 45 seconds)
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> dhclient started with pid 4666
Mar 6 13:18:21 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 3 of 5 (IP Configure Start) complete.
Mar 6 13:18:21 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 4 (xid=0x5f3e977b)
Mar 6 13:18:23 noctuamjuris avahi-daemon[423]: Registering new address record for fe80::601:94ff:fe94:9302 on eth1.*.
Mar 6 13:18:24 noctuamjuris ntpd[448]: Listen normally on 307 eth1 fe80::601:94ff:fe94:9302 UDP 123
Mar 6 13:18:25 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 5 (xid=0x5f3e977b)
Mar 6 13:18:25 noctuamjuris kernel: iptables: CN-Country-Drop: IN=eth0 OUT= MAC=04:01:94:94:93:01:f8:c0:01:27:e4:f0:08:00 SRC=222.186.56.42 DST=45.55.46.168 LEN=40 TOS=0x00 PREC=0x00 TTL=103 ID=256 PROTO=TCP SPT=6000 DPT=22 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 6 13:18:30 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 (xid=0x5f3e977b)
Mar 6 13:18:37 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15 (xid=0x5f3e977b)
ar 6 13:18:25 noctuamjuris kernel: iptables: CN-Country-Drop: IN=eth0 OUT= MAC=04:01:94:94:93:01:f8:c0:01:27:e4:f0:08:00 SRC=222.186.56.42 DST=45.55.46.168 LEN=40 TOS=0x00 PREC=0x00 TTL=103 ID=256 PROTO=TCP SPT=6000 DPT=22 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 6 13:18:30 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7 (xid=0x5f3e977b)
Mar 6 13:18:37 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15 (xid=0x5f3e977b)
Mar 6 13:18:52 noctuamjuris dhclient[4666]: DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15 (xid=0x5f3e977b)
Mar 6 13:18:53 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Mar 6 13:18:53 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...
Mar 6 13:18:53 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <warn> (eth1): DHCPv4 request timed out.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): DHCPv4 state changed unknown -> timeout
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): canceled DHCP transaction, DHCP client pid 4666
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): DHCPv4 state changed timeout -> done
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <warn> (eth1): Activation: failed for connection 'Wired connection 1'
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: failed -> disconnected (reason 'none') [120 30 0]
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): deactivating device (reason 'none') [0]
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> Auto-activating connection 'Wired connection 1'.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: starting connection 'Wired connection 1'
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) scheduled...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) started...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) scheduled...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 1 of 5 (Device Prepare) complete.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) starting...
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): device state change: prepare -> config (reason 'none') [40 50 0]
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) successful.
Mar 6 13:19:06 noctuamjuris NetworkManager[563]: <info> (eth1): Activation: Stage 2 of 5 (Device Configure) complete.
and start over again ...