[02:51] <distant> Hello, im just looking for somw help with errors im recieving trying to enable memory ballooning. Everytime i try to execute the command "VBoxManage modifyvm <VM name> --largepages off" with the UUID i get from "sudo blkid" or "# /usr/sbin/dmidecode | grep UUID" i recieve a error stipulating: "VBoxManage: error: Could not find a registered machine with UUID"
[06:28] <lordievader> Good morning
[09:24] <supaman> lordcirth: found it! :-) (it was a cron job on the NFS server that uses truncate to set the file size to 0)
[12:05] <gokhani> hi folks, How can we configure iscsi volumes on ubuntu 18.04.2 LTS live server ? There is no selection like Configure ISCSI volumes ? I need help
[12:05] <DangerosoDavo_> Hey, I hear here is a good place to ask about postfix and ubuntu
[12:10] <DangerosoDavo_> Well incase it is, can someone give me a little help?  I'm trying to setup a contact form on a website I'm hosting on a digital ocean droplet. (LEMP server image) ive got it working, the website works well and all.  but its not sending emails via the contact form, however it was in the past on a pervious host, after a little digging i am getting so
[12:10] <DangerosoDavo_> me errors in the /var/log/mail.log Its losing connection while performing the HELO handshake
[12:11] <sdeziel> gokhani: I don't know if the live installer has that ability. I'd check the d-i one maybe
[12:13] <sdeziel> DangerosoDavo_: are you losing the connection no matter where you make it? Or is it just a single domain/MX that drops you?
[12:13] <gokhani> sdeziel,  I checked debian installer but it has not ability to set vlan intarface
[12:14] <gokhani> sdeziel, I want to reach iscsi disk with vlan tagged interface
[12:16] <sdeziel> gokhani: OK, then maybe you could open a shell in the installer env and do the missing setup by hand. Missing setup meaning VLAN config for d-i and iSCSI for live installer
[12:16] <sdeziel> gokhani: I suspect that doing the VLAN config on d-i might be easier
[12:34] <DangerosoDavo_> I didnt see the reply sorry.
[12:36] <DangerosoDavo_> This screenshot might help https://i.imgur.com/DjSzSBN.png  But I've got 2 domains pointed to the server and the mx records point to an email provider (123-reg) as I'd like my emails to be handled by them, but I have a contact form on a website which sends to another domain so its all in one palce
[12:37] <DangerosoDavo_> i have a records pointing to the ip
[12:37] <DangerosoDavo_> sdeziel I forgot to tag
[12:40] <TJ-> DangerosoDavo_: try the same connection manually using telnet, see if you get any indications from the remote MTA as to why the HELO negotiation fails
[12:41] <TJ-> DangerosoDavo_: it's possible you're trying to treat the remote MTA as a relay and it blocks that, if it isn't the MX for the target domain
[12:44] <sdeziel> DangerosoDavo_: if you are relaying through an email provider (123-reg) then your postfix should only be talking to their servers. ATM your postfix tries to do direct deliveries to mailguard-2.talkcloud.co.uk
[12:52] <DangerosoDavo_> I see, Email is new to me, How do i use telnet do that?  I'm new to running the server too.  I know my way around linux to a fairly basic but functional way. I can setup a server to host a site/proxy etc but I havnt used sendmail or postfix before.  I'm guessing the auto-config digital ocean have doesnt work without futher configuration
[12:59] <TJ-> DangerosoDavo_: the local postfix should be sending the email directly, not relaying it through a 3rd party MTA (unless that 3rd party has authorised relaying)
[13:02] <DangerosoDavo_> Okay, right, so directly. I was reading that there needs to be an MX or A record pointing back to there server ip. I just thought, would going trough cloudflare would change that resolved ip?
[13:02] <DangerosoDavo_> the* server ip
[13:05] <TJ-> MX records are for *receiving* email to your domain; nothing to do with *sending* email to others
[13:07] <tomreyn> there are 'contact forms' which can do remote smtp auth - might be a better option?
[13:09] <TJ-> sounds like the 'form' is using the local postfix/sendmail but postfix has been configured to send everything to a smarthost. Sounds like a very good example of why not to operate your own MTA if you've got no previous experience
[13:12] <DangerosoDavo> postfix has been left as it was installed, it tries to send the email directly (unless im mistaken) as it showed in the screenshot.  https://i.imgur.com/DjSzSBN.png
[13:15] <DangerosoDavo> I don't know why it is failing the HELO handshake though.    After thinking about it and what has been said above,  I think that postfix needs configuring.
[13:15] <TJ-> DangerosoDavo: oh! beg-pardon - your description suggested you were using a mail relay
[13:15] <DangerosoDavo> sorry :D
[13:16] <TJ-> DangerosoDavo: start a telnet session to the server and do the negotation manually  https://port25.com/how-to-check-an-smtp-connection-with-a-manual-telnet-session-2/
[13:27] <DangerosoDavo> Sorry for being such a novice https://i.imgur.com/x9wIxtC.png  Did i type those commands correctly?
[13:28] <DangerosoDavo> need to setup my .bashrc / .bash_profile too yet :D
[13:28] <DangerosoDavo> not transferred it yet
[13:29] <TJ-> DangerosoDavo: it's pretty clear "No SMPT service here"
[13:31] <TJ-> DangerosoDavo: I'd guess that your host's reverse-DNS is not configured correctly
[13:31] <DangerosoDavo> Is that on the remote host (talkcloud)?  Or on the web server?  It receives email normally from other sources, I'm in regular contact with them.
[13:31] <TJ-> DangerosoDavo: to prevent abuse, the remote MTA will use the EHLO <fqdn> to do a reverse-lookup and check that the IP address matches the clients IP address
[13:45] <DangerosoDavo> Makes sense.
[14:10] <superboot> How can I install php-apcu on 18.04 server? I've installed the package php-apcu, but PHP/apache2 isn't seeing it. Hints?
[14:11] <teward> superboot: did you restart Apache and PHP yet?
[14:11] <teward> you need to restart Apache2 to refresh the PHP plugins if you're using Apache's inbuilt PHP modules
[14:12] <superboot> teward: No I didn't. Haha
[14:15] <superboot> Thanks. That worked. :)
[14:15] <teward> superboot: restart the Apache2 service then try.  whenever you change PHP plugins you have to restart the underlying PHP process - for Apache2's inbuilt you have to restart the entire Apache service :P
[14:15] <superboot> teward: Ok, cool. That makes sense. :)
[14:20] <DangerosoDavo> Right-o Followed some guides, https://i.imgur.com/gFC17mR.png
[14:20] <DangerosoDavo> Cheers for your help and patience TJ
[14:21] <DangerosoDavo> It was the reverse dns, turns out Digital ocean sets it up for you, but you have to use a fqdn as your droplet name
[14:23] <TJ-> DangerosoDavo: aha !