FatRabbit's questions

I am trying to import a specific key from ubuntu key server and when I launch the gpg command for that, the received key ID does not match the one I passed as argument:

$ gpg --keyserver keyserver.ubuntu.com --recv-keys 54404762BBB6E853
gpg: key A48449044AAD5C5D: 4 signatures not checked due to missing keys
gpg: clef A48449044AAD5C5D : « Debian Security Archive Automatic Signing Key (11/bullseye) <[email protected]> » n'est pas modifiée
gpg:       Quantité totale traitée : 1
gpg:                 non modifiées : 1

I requested the: 54404762BBB6E853 but received A48449044AAD5C5D. Deleting and reimporting the key gives the same behavior

Edit: this behaviour is totally normal. A subkey is bound to his primary key. You will need to pass --with-subkey-fingerprints to apt-key in order to print its fingerprint. I did not notice the "sub" comming with "pub" entries. My bad.

Bonjour,

We have 3 identical nodes running drbd version: 8.4.7 (api:1/proto:86-101) and upgrade to drbd9 is on the menu.

Is it safe to have drbd8 running alongside with drbd9? at least during upgrade process.

Thanks!

--- system config (identical nodes)

• Ubuntu server 18.04 (end of life) upgrading to Ubuntu 20
• HD= 2x2TBytes per node
• RAM= 32GBytes
• drbd version: 8.4.7 (api:1/proto:86-101) -- srcversion: 7FA2FF168828B1B272D3F92

Need some help:

1. install libiptc
2. commandline to compile with libiptc
3. a very simple example would be welcome!

I have seen the official website but there is not many information for Ubuntu and their guide is almost outdated.

I have Ubuntu 18.04 Bionic Beaver installed on my computer.

Thanks!

I am using ubuntu 16.04.4 LTS (latest). I want to move to nftables.

How can I remove iptables and install nftables ?

We have a ubuntu set up as firewall (basic iptables), the thing is we have a netmask of 255.255.0.0 i.e almost possible 65531 addresses.

Since I want to monitor download traffic per IP, I need to make thousands of rules (I have a script that can do that) but will my server support that number of rules?

configuration:

Dell optiplex 7210    
core i3 2.6Ghz    
4GB RAM    
50GB HD

I would like to set up a dedicated firewall with a minimal linux. I need something that just has absolutely the minimum and no more:

• iptables
• ssh access
• basic tools

Do you have any suggestions?

We have a Ubuntu Server 16.04.2 LTS installed on a Dell powerEdge. It has 4x2 TB HDD in RAID-5 configuration.

The thing is, we have to periodically backup 4TB of data and it takes 7 days for a full backup and 3 days for incremental.

Is there a way to improve this speed?

I have set up a postfix+spamassassin mail filter to protect my Exchange 2010 server. The matter is I'd like to use a custom tag string instead of the default *****SPAM*****. I have already changed the rewrite_header in local.cf but spams are still tagged with the default *****SPAM*****. Thanks.