Category: networking
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VirtualBox: boot from USB image
Projects like OPNsense.org provide you with an .img file that you would dd to a USB device to boot from. This is not obvious how to use from VirtualBox. You need to convert that into a VMDK file. Basically, the command I used was: vboxmanage convertfromraw OPNsense-19.7-OpenSSL-serial-amd64.img /tank/VMs/4544-opnsense-19-freebsd/opensense-19.7-usb.vmdk –format vmdk Then attach that VMDK file…
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OpenVPN easy-rsa notes
Get the recent easy-rsa scripts: # git clone openvpn/easy-rsa git checkout v3.0.6 # copy easy-rsa directory to /etc/openvpn/server cd /etc/openvpn/server/easy-rsa ./easyrsa init-pki ./easyrsa build-ca # this will need a password ./easyrsa gen-dh ./easyrsa gen-req servername.com nopass ./easyrsa sign-req server servername.com # requires ca passwd from above Now you can edit your server/server.conf file and fire…
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Ubuntu 18.04 Netplan!
This was unexpected, but I think I’m coping well. These are my notes on configuring netplan networking on my Ubuntu 18.04 server. systemctl disable NetworkManager.service NetworkManager-wait-online.service systemctl mask NetworkManager-wait-online.service systemctl daemon-reload apt install bridge-utils -y edit /etc/udev/rules.d/70-net.rules SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{dev_id}==”0x0″, ATTR{type}==”1″, ATTR{address}==”c8:70:00:9f:d7:72″, NAME=”eth0″ SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{dev_id}==”0x0″, ATTR{type}==”1″, ATTR{address}==”00:e2:ed:17:09:60″, NAME=”eth1″ SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{dev_id}==”0x0″,…
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Xeon D with all the networking
This is an impressive little motherboard. I can think of a few tasks for it…
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Pulling 200 Feet of Cable
We wrapped five 200 foot segments of the direct burial line back onto the original spool so we could tape them all together. The paint cans are ballast to keep the spool from sliding around. Our first pull attempt was thwarted by friction. We yanked it back and greased the nose of the cable and…
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Dinner Table Network Lab
Because I needed to document my Vlan setup, of course. Serial cable swapped between an OPNsense firewall and a Fedora box. Verified that I don’t have to set Vlans on the host ports to hand out multiple DHCP domains. It does hog switch ports, tho.
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Thoughts on Media Hosting
If the recordings are licensed in the public domain, out of copyright, or creative commons, archive.org provides free audio hosting. http://archive.org/about/faqs.php#224 All of the services listed are not a substitute for an offline cold backup, just a reminder. Site content on Amazon or YouTube can disappear because of copyright dispute claims or policy conflicts like…
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Robocopy Notes
Install cmder: It’s the nicest shell I’ve seen for windows. Run your console as Administrator. Otherwise you can’t use the /B backup switch. Also rember you need to do a net use command as administrator. Before you robocopy stuff, setup a dedicated drive letter. The drive letter is only available to the logged in session.…
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