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I got it to work by installing grub2 on my old system. I guess the old version of grub didn't know how to handle nvme drives.

I have made a bit of progress. When I boot off the ubuntu 18.10 thumbdrive, instead of choosing a grub entry, i press "c". In that new grub menu, I can find my grub.cfg location by typing: ls...

I have an old image for an old product that would be almost impossible to recreate at this point from scratch so just starting over with a new ubuntu install and installing all the custom stuff isn't...

Thank you. I changed it to /usr/bin/touch (after verifying that was what it really was for me) and it still didn't run. This is a real pain!

Thanks. No other file in the /etc/cron.d directory was executable but I made it executable anyhow. The .sh script was already executable. Didn't seem to make a difference.

So I have a simple file called startprogram in /etc/cron.d. It has permissions 644 and is owned by root:root.

This file has one line:
@reboot root /home/user/somedir/start_the_program.sh
...

Well, I noticed in the BIOS that the boot devices listed two items - some flash thing I don't recognize and the normal disk drive. I made the normal disk drive the default drive and I can't get the...

Ok. The BIOS is iBTMx-DS R1.02.

This BIOS looks very bare bones - not a ton of options in it compared to others I've seen. In the boot menu, there's a quiet boot mode which is disabled, numlock...

Yeah, I've run into the need for a monitor as well. The flaw in that theory is that it can cold boot without the monitor just fine. It's just re-booting without the monitor that fails.

Fresh install of 64bit vivid server. Got a LAMP stack installed and openssh.

Scenario 1: No monitor, I'm only ssh'd in
When I try to do a "sudo reboot", my ssh tession is terminated and am...

Thanks for the reply. My latest settings appear to match yours and no dice. Going to send this machine back.

Been ripping my hair out to get any recent version of Ubuntu server running on this motherboard with an SSD hard drive. I've tried it with UEFI enabled and 14.04 64bit server. I've tried it with...

I installed pptp as described here: https://help.ubuntu.com/community/PPTPServer

Works like a champ if I try to login with the credentials of the first account in chap-secrets. If I do the...

Well, I'm not sure asterisk has anything to do with it. The packet leaves the asterisk computer and is bounced back by the firewall with both the sender and receiver address changed. I can see that...

By adding an "-i em1" to my prerouting rule, I get a clean communication from asterisk#1 to asterisk#2:


$IPT -t nat -A PREROUTING -i em1 -s (asterisk#1publicIP) -d (asterisk#2publicIP) -p udp...

Thinking about it some more, it seems like each packet being sent from asterisk#2 is being reflected back to it by the ubuntu gateway. That's why you see 6 packets in that conversation but only 3...

What I described above was for when asterisk#1 is initiating contact with asterisk#2. When it's the other way around, it's even weirder. I decided to run tcpdump on two different interfaces of the...

Well, I'd like to stay with SNAT and DNAT as I've read all over the internet they're less CPU-intensive than masquerade. Also, they should work fine if all IP addresses are known. As you can see, I...

I have an asterisk server#1 (privateIP1) behind a plain old wifi access point (PublicIP1) in one city and another asterisk server#2 (privateIP2) behind an ubuntu server (acting as a gateway with...

My script is just a list of iptables rules. That's it. I then do a iptables-save to a file and an iptables-restore from that file on boot and it doesn't work.

Oh well, my script in rc.local...

Thanks for the tip. I uninstalled that package and did it the way you suggest. Unfortunately, it didn't seem to make a difference.

Remember, after a reboot, when I examine the iptables in...

I followed the tutorial here to make the iptables changes I make persistent.

I see that it does indeed make a /etc/iptables/rules.v4 file with everything I want in there.

Before rebooting to...

Well, it turns out the server needed to be rebooted. I guess you can only flush iptables so many times...

Thanks for your help!

I'd like to forward udp packets with port 4569 from my gateway ubuntu server (PUBLICIP) to my asterisk server inside (LOCALIP).

Here are the rules I've done:


$IPT -t nat -A PREROUTING -p udp...

I tried another version:


-A PREROUTING -i p1p1 -o p3p1 -j DROP

but I can't re-enable ufw with that in there - it throws an error. By the way, this is inside the *nat section. Is that what...