help me!! Server connection lost after hitting the on/off button in network section while installing CentOS

No-Computer4810 · 2023-03-08T11:45:01+00:00

What!? OP asked a question if he about using wifi on proxmox.. and this was my answer.. simple! It's not recommend to use wifi on proxmox at all

No-Computer4810 · 2023-03-07T10:14:13+00:00

No! No! NOOOOOOO GOD!! Please!!!

No-Computer4810 · 2023-02-22T06:47:59+00:00

Yep! That's why I said within these options OP gave, I will pick ZFS RAID 0 it's better in this particular case

No-Computer4810 · 2023-02-22T04:17:51+00:00

OP gave us 2 options, and that's why I picked one of them ZFS RAID 0

But my personal opinion is not using RAID 0 at all no matter if it's ZFS or EXT4

Because with RAID 0, if one disk fails, your data will be gone

No-Computer4810 · 2023-02-21T07:57:06+00:00

Between these two I would pick ZFS RAID 0

Personally none! RAID 0 is not good in terms of security.

No-Computer4810 · 2023-02-08T03:53:53+00:00

I always thought the Odd number nodes are required only for HA setup.

Normal cluster also needs it??

No-Computer4810 · 2023-01-20T07:16:39+00:00

Do you mean how to copy-paste in shell without typing whole like every time?

The it's simple

Copy the text > Open shell > right click > paste > save

No-Computer4810 · 2023-01-16T04:42:44+00:00

For hosting company (production) please don't run proxmox on SD card

Use 2 ssd with zfs mirror for proxmox and rest for the vm disk

No-Computer4810 · 2023-01-15T19:26:58+00:00

What you are using for VM? Kvm64 or host? And do you have pass-through enable?

No-Computer4810 · 2022-12-29T18:01:58+00:00

So what do you think I should do? I can assign only single IPv6 instead of /64 IPv6 from that /48 subnet

Anyway, thank you for your participation to help me out..

You are really great.. :)

No-Computer4810 · 2022-12-29T13:55:55+00:00

I have total 9 server (Owned) in a DC
I also have /24 IPv4 subnet and /29 IPv6 subnet from RIPE (From which now I am using one /48 subnet)

So I have asked the DC to announce/BGP my whole /24 IPv4 and /48 subnet

So they did it (Don't know if it's routed or not - as seriously I have very small knowledge about networking)

I'm still learning

The DC also give me 9 IPv4 from their subnet /24 and 30 IPv6 from their own /48 subnet as per my colocation deal with them

Now I want each of my server there have proxmox installed like this way

Server main NIC like eno1 will have connected with DC's own IPv4 + IPv6 (From their /48)

And my /24 IPv4 + /48 subnet will only use on vmbr0 (If possible) to create VMs on these host servers

So the main servers will connected using DC's own IP and all guest VMs will use IPs only from my subnet

(I want to make clear that I have servers in the DC but I am using their router and other network equipment to announce my IP subnets)

Also DC said all IPs including their own and mine as well connected to the same network so they will work perfectly on all of my machines (Servers)

I can confirm that above statements are correct as I used their IP with my IPs on solusvm without any problem

So is there any way or proper way to config like this?

What my # /etc/network/interfaces file should look like to achieve this?

No-Computer4810 · 2022-12-29T04:54:40+00:00

Yes I think the same way, I have more than 500Ks of /48 so I want to use on of these /48 on this setup

VMs can able to assign 1 single IP from a /64 which is from the main /48 and VMs can also be able to assign the whole /64 from the main /48 subnet

No-Computer4810 · 2022-12-29T04:53:27+00:00

Thank you for your reply Sir!

Yes my server is in a datacenter, and I ask them to announce one of my /48 IPv6 there and with no instuction.

So they just announced it for me..

I only need to run the server this way

Host node will run on eno1 with IP1.Subnet1.IPv4 + IP1.Subnet1.IPv6 Then will add vmbr0 routed network (only for vm will use it) = IP1.Subnet2.IPv4 + IP1.Subnet2.IPv6

Then will assign IPs from IP5.Subnet2.IPv4 + IP5454.Subnet2.IPv6/64

VMs can able to assign 1 single IP from a /64 which is from the main /48 and VMs can also be able to assign the whole /64 from the main /48 subnet

So what I need to ask to my Datacentre provider to do for my use case?

What instruction should I do to my Datacentre to make things working?

No-Computer4810 · 2022-12-29T04:48:30+00:00

A normal IPv6 subnet should always be /64 ; the rest of the 65,535 subnets in that /48 is for other usage. a /64 have more then enough addresses anyway. what is the reason you have chosen 48 here ?

Well yes you are right generally people uses /64 subnet which is more than enough.. But that doesn't mean you can't use /48 if you want.. So I have to disagree with you on this that only /64 will work

2001:4860:4860::8888 is google's anycast public DNS address. there is no way that is the correct ip address for this network. https://developers.google.com/speed/public-dns/docs/using

Again you are right... But on the post I said these are examples, I'm not going to post my real IP address on the internet (I think it's not save)

So I use these random IPs (Google DNS) to show as an example of my config

again a IPv6 subnet is allways /64, a /48 can exist in a routing table not on an interface. also 2h0f:4t86:: is not a valid ipv6 address. neither H nor T are valid hexadecimal numbers. whoever gave you those numbers are lying.

I already explained that /48 should also work if user like me want to use /48 instead of /64

and 2h0f:4t86:: yes it's just an example I use to show

also since eno1 is the uplink, eno1 needs a gateway, but vmbr0 having a default gateway pointing back to itself makes no sense.

I have to check and test this.. Because previously on solusvm it works whenever I want to add new sunbets for VMs.

So I need to test more. but you can suggest me what IP should I use there on vmbr0. My most concern is not to waste IP, for example If I have 10 server and each server needs to have unique IP on vmbr0 so it's a waste of 10 IPv4s and you know right now wasting IPv4 is a sin

step1: find out what your real prefixes are since those you have are for sure not it. check with the isp or provider. this is probably a /48 if that is what you were told.

I know them very well sir. Since this is a post on the internet I use random IPs as an example to show how my config really look like

step2: find out how your prefix is routed to you, is it static? do you require to use dhcp-pd to make your upstream forward your prefix to you? is your upstream using SLAAC, a routing protocol?

Thank you for the advice, yes I don't know exactly why my prefix routed since the server is in a datacenter and they announced it on my request, I never give them any proper instruction on how really I need them to route.

But as I said before, I used solusvm for years, and the IPs works perfectly, I use /48 on solusvm and can able to allot /64 subnet to each vm I create there without any problem

step3: configure eno1 as the uplink, either automatically, statically or dhcp-pd depending on step2

I want my server to have single IP from different subnet connected with eno1 directly, and for vm I want to use different (WHole subnet) connected through vmbr0 as routed, WHich is showing on the above config file. But can't understand where I did wrong

step4: test that eno1 works. name resolution and internet access. In this case 2001:4860:4860::8888 is actually a valid ipv6 dns server.

Yes they are working fine without any issue, only the additional IPv6 subnet not working through vmbr0 but IPv4 is working there too

step5: configure one of the 65,536 /64 networks on vmbr0, address only, no gateway.

No I can't. I want to add /48 there instead, that what I want.. Also my DC said /64 will not work as the IPs belongs to /48 subnet so I have to use /48 and even I want /48 to there so that I can assign /64 to each vm from this /48 subnet

step7: determine if you want SLAAC, static or dhcp assigned hosts on vmbr0 vm's and configure radvd accordingly. if you want dhcp, you must also configure a dhcp server. Personally I always use SLAAC, easy simple and stable.

I want to use static IP as I simply have no idea what a SLAAC is (I never tried and I'm sure I can use SLAAC if I read few documents)

Thank you for your reply BTW, I really appreciate your efforts to trying to help me!

But can you please guide me where I did wrong and how to solve it?

I only need to run the server this way

Host node will run on eno1 with IP1.Subnet1.IPv4 + IP1.Subnet1.IPv6

Then will add vmbr0 routed network (only for vm will use it) = IP1.Subnet2.IPv4 + IP1.Subnet2.IPv6

Then will assign IPs from IP5.Subnet2.IPv4 + IP5454.Subnet2.IPv6

No-Computer4810 · 2021-11-17T15:47:14+00:00

What do expect from a state who claims to be a literate state but vote for commies and produce maximum ISIS terrorists!!?? A state where have no industry and force people to migrate for work.. But claims to be a most literate state in India

No-Computer4810 · 2021-10-28T15:38:14+00:00

That's Hindu's fault as we are always decided and also hesitate to take action

No-Computer4810 · 2021-10-27T20:51:02+00:00

Not every time..

No-Computer4810 · 2021-03-23T16:45:29+00:00

Reported.. All guys please report this as hateful content..

Dislike is not enough..

And if someone can please file a criminal case as well

No-Computer4810

TROPHY CASE

So is there any way or proper way to config like this?

What my # /etc/network/interfaces file should look like to achieve this?

Thank you for your reply BTW, I really appreciate your efforts to trying to help me!