Isn’t this a situation where you should engineer around the circular dependencies? Set power-on delays in the server BIOS. You have multiple DNS servers, so that’s a plus. DNS caching? Would this be as simple as using IP addresses or host files for your NFS or storage network? You didn’t mention the particular virtualization technology, … Read more
There’s no option here. Since the advent of the Nehalem and newer CPU’s, the POST time on HP systems has grown tremendously. I see that you’re using this as a workstation. Is there any option to leave the system running and take advantage of some of the BIOS power management options?
You need, at minimum, After=network.target in the [Unit] section of your unit file, to ensure that the network is up before starting nginx. I have no idea why your unit file doesn’t have it. Here is a complete example from my handy Fedora system, as shipped by Fedora: [Unit] Description=The nginx HTTP and reverse proxy … Read more
I’d suggest just using the user-data option to ec2-run-instances. It lets you give a script of some sort to the VM which will be run on first boot. If you’re using ubuntu or debian, you can use cloud-init, which puts some nice polish on the process. If using cloud-init, you can use the [runcmd] section … Read more
In the System event log, filter by event id 1074, this will show by which process and on behalf of which user a reboot was initiated. This was tested on Windows Server 2008.
See this post for instructions for how to take stuff that’s on a bootable DVD and placing it on a USB drive that’s bootable. A USB Thumbdrive is just a hard drive, and if it’s got the right boot files and the BIOS supports booting from an external USB hard drive it will work fine. … Read more
Out of the box, you are guaranteed that iptables will start before the interface is brought up by the order of the startup scripts. Look at the “chkconfig” line in each startup script and you will see the runlevels it is “on” when active, the start order, and the stop order. You are not guaranteed … Read more
sudo systemctl enable docker did the trick.
In short: ls /etc/rc*.d This shows you what starts at which runlevel, and within each level the order is determined by the number after the letter (K is Kill, S is start). You can configure what starts at each runlevel with sysv-rc-conf, which is installable with apt. e.g. on my system apache2 is symlinked in … Read more
These days, 100 Megabytes or 200 Megabytes is the norm. You do not need to have a /boot partition. However, it’s good to have for flexibility reasons (LVM, encryption, BIOS limitations). Edit: The recommended size has been increased to 300MB-500MB. Also see: https://superuser.com/questions/66015/installing-ubuntu-do-i-really-need-a-boot-parition