Thanks I'll think of that...

No, I mean that the service is open only on LAN IP and not on External IP. like SSH or FTP

All service are not available from external IP. Some are exclusively accessible from LAN IP.
With one IP I can no longer do that.


I need to connect to ISP router to enable DHCP that use router's DNS
I need Clear OS DNS in order to assign logical name to my LAN equipements (thing I can't do with ISP's router).


DHCP server is done by Clear OS. When Clear OS is down, I need to activate ISP's router DHCP.

your WAN subnet is part of your LAN subnet?

Yes Overlap
External


LAN


As my LAN should work with or without Clear OS I need to be able to access 10.0.0.138.
I need ClearOS DNS and DHCP as my ISP's router doesn't have all required features...

Recieveing this arpwatch message is not an issue.
The reason I recieve it is what I'm looking

arpwatch flipflop

Hi all,

I get some chaotic arpwatch flipflop.
Sometimes very few 4 a day some time huge amount 100 or 200 a day.

Each time I get them by 2 copies :

Or when server's MAC address is involved I've got :

and

I get only this on the External IP address
that raise some alert on my ISP router :
NIC 0c:c4:7a:33:07:8b and 0c:c4:7a:33:07:8a use the same IP address 10.0.0.142
But in this message this is the LAN IP that is involved

I've got 2 NIC :
enp4s0 External Static 10.0.0.137

enp3s0 LAN Static 10.0.0.142


The strange thing is that the mac adress in the arpwatch alert email could be anything :

from the 2 server NIC MAC address
2 other equipement MAC Address

In the exemple this is my ISP router MAC Address and my laptop and then my ISP router and my PC

I need my network to work with or without the ClearOS server on. I do not use firwall feature of the Clear OS.

Any idea of the reason for that ?

Re: WARNING: PV /dev/xxx is marked in use but no VG was found using it. PV /dev/xxx might need repairing.

Here is the answer from Red-Hat :

If it could help you in such situation.

Here is the answer from Red-Hat :

WARNING: PV /dev/xxx is marked in use but no VG was found using it. PV /dev/xxx might need repairing.

Hi all,

After moving segment from a defective drive that is failing I've got this messages :
WARNING: PV /dev/sdk is marked in use but no VG was found using it.
WARNING: PV /dev/sdk might need repairing.
WARNING: PV /dev/sdl is marked in use but no VG was found using it.
WARNING: PV /dev/sdl might need repairing.
WARNING: PV /dev/sdj is marked in use but no VG was found using it.
WARNING: PV /dev/sdj might need repairing.

I'm sure to have made a pvmove to /dev/sdj.
Why /dev/sdk & /dev/sdl are found has been used I'm quite sure they aren't

Here are the segments from the VG point of view
[root@home store]# lvs -a -o +devices WD_Group
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices
Store WD_Group -wi-ao---- <11.83t /dev/sdb(476932)
Store WD_Group -wi-ao---- <11.83t /dev/sdb(0)
Store WD_Group -wi-ao---- <11.83t /dev/sdg(0)
Store WD_Group -wi-ao---- <11.83t /dev/sdb(953843)
Store WD_Group -wi-ao---- <11.83t /dev/sdb(476911)
Store WD_Group -wi-ao---- <11.83t /dev/sde(953843)
Store WD_Group -wi-ao---- <11.83t /dev/sdg(476911)
Store WD_Group -wi-ao---- <11.83t /dev/sdj(0)
Store WD_Group -wi-ao---- <11.83t /dev/sdb(953864)
Store WD_Group -wi-ao---- <11.83t /dev/sde(1430754)

Here are the segment from PVS point of view :
[root@home store]# pvs --segment /dev/sdj
PV VG Fmt Attr PSize PFree Start SSize
/dev/sdj WD_Group lvm2 a-- <1.82t 4.00m 0 476931
/dev/sdj WD_Group lvm2 a-- <1.82t 4.00m 476931 1
[root@home store]# pvs --segment /dev/sdk
PV VG Fmt Attr PSize PFree Start SSize
/dev/sdk WD_Group lvm2 a-- <1.82t <1.82t 0 476932
[root@home store]# pvs --segment /dev/sdl
PV VG Fmt Attr PSize PFree Start SSize
/dev/sdl WD_Group lvm2 a-- <1.82t <1.82t 0 476932

So for sdk & sdl it probably unused disk but for sdj I'm sure it is used for strore LV.

Any recomandation on how troubleshoot that without loosing data that I can't backup for sure.

How could I found the file in the suspected segments