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  • Bulk add IP's to Netbox IPAM and attach to Interface

    calendar May 27, 2020 · 1 min read · NETBOX NETBOX-IPAM IP CONFIG  ·
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    I need to add a /30 IP to every interface on a switch to enable host based routing in a virtualization cluster. I'm lazy and didn't want to key them all in by hand. So I wrote this script in Pyhton3 It uses a starting interface ID(Assuming that all of the interfaces on your switch are in numerical order) and it uses a …


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  • Moutning a CephFS share using ceph-fuse

    calendar May 16, 2020 · 1 min read · linux ceph  ·
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    I always forget how to mount the subfolder of a CephFS filesystem sudo ceph-fuse -m 192.168.2.9:6789 -r /subfolder /folder/on/my/machine Note: The proceeding / after the -r is important Some great info here on restricting access to specific folders and more notes on mounting …


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  • Notes on using nmap

    calendar Apr 29, 2020 · 1 min read · linux networking  ·
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    Nmap Scan subnet for PTR's When you need to scan an entire subnet for 'research purposes' and check for any associated PTR's we can use Nmap   nmap -R -sL 103.112.200.0/22 > results.txt


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  • EasyRSA - Make a certificate and copy to ansible staging dir

    calendar Feb 27, 2020 · 1 min read · linux pki  ·
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    I use this script on my CA server to create a certificate for each new server we provision. This allows our internal PKI to function. This script creates a certificate then copies it to the Ansible server where is can be deployed to the destination host Obviously you'll need to take the necessary precautions around key …


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  • Ubuntu interfaces file examples

    calendar Feb 27, 2020 · 1 min read · linux networking  ·
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    Example 1 - Includes some static routes and manually specified IP's auto lo iface lo inet static address 103.90.59.9/32 auto ens3 iface ens3 inet static address 172.2.1.17 network 172.2.1.0 netmask 255.255.254.0 up route add -net 172.2.0.0 netmask 255.255.0.0 gw 172.2.1.1 up route add -net 172.2.0.0 netmask 255.255.0.0 …


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  • Putty SSH settings to stop garbled output

    calendar Sep 24, 2019 · 1 min read · PUTTY SSH CONFIG UBUNTU-18  ·
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    Using Ubuntu 18 and tools like glances and iftop would often mangle the output Changing the default Puttty settings 'Connection > Data > 'Terminal-type string' to 'putty' instead of 'xterm' and setting your PuTTY settings under Translation and ensure that you have UTF-8 set as the character set then save this as …


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  • Copy files from Android phone using ADB - Quicker than MTP

    calendar Sep 21, 2019 · 1 min read · ANDROID ADB MTP  ·
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    When backing up photos form my Android phone i found that the phone didn't present as a mass storage device, it would only appear as a MTP\PTP device and the file copy speed was terrible. So some research led me to using the ADB command, you'll need to enable USB debugging before this will work. Find your files 1adb …


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  • MYSQL Backup to S3 script

    calendar Sep 18, 2019 · 1 min read · linux mysql  ·
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    Script #!/bin/bash # Set the enviroment variable so read function knows to seperate on ",". export IFS="," NOW=$(date +"%Y_%m_%d_%H_%M") DATABASES_CONFIG_FILE="/home/bfnadmin/databases.csv" S3_ENDPOINT="https://my-s3-storage.com" S3_BUCKET="s3://sql-backups" TEMP_BACKUP_DIR="backups" while read HOST USERNAME PASSWORD …


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  • TCPDump commands

    calendar Jul 17, 2019 · 1 min read · TCP-DUMP TCP  ·
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    HTTP GET or POST commands on port 5000 1tcpdump -i eth0 -s 0 -A 'tcp dst port 5000 and tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420 or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x504F5354'


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  • Exchange Autodiscover with HTTP redirect method

    calendar Jul 17, 2019 · 1 min read · HTTP AUTODISCOVER CAS SERVER-2012 SMTP  ·
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    Server 2012 R2 Create a new Website on the CAS "autodiscover-redirect" create a virtual directory called "autodiscover" Click the virtual directory then open "Http Redirect enter the url of the exchange server e.g. "https://contoso.com/autodiscover/autodiscover.xml" (Must be HTTPS) …


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Cory Hawkvelt

Career Nerd and Open Source Cloud Architect
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