I recently ran in to trouble restarting neo4j over ssh here’s the fix: From machine calling neo4j host ssh -f $USER@$HOST ‘sh -c “( (nohup sudo restart 2>&1 >output.file </dev/null) & )”‘ Target Machine Sudoers Replace “someuser” with whatever…
Goal: Whitelist an Entire Country with ipset For this article i’ll be referencing the github repository I set up at We have a few files there, specifically: * cidr_to_ipset.sh (a script to create an ipset ruleset) * Some example…
What to do when barnyard2 won’t log to the database…. Are you seeing something like this? [SignatureReferencePullDataStore()]: No Reference found in database … Full text: # /usr/local/bin/barnyard2 -c -d /var/log/snort -f snort.log -w Running in Continuous mode –==…
Objective Add two network interface in ubuntu 12.04 in aws and route traffic properly to either ip Scope: Amazon EC2 Attach Elastic Network Interface (VPC) Related Documentation Process Start AMI in VPC After boot attach…
Example to egrep valid ip address To egrep all valid ip addresses in current directory: egrep -r ‘[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}’ . An Alternative: /bin/egrep ‘\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b’
Getting SSL to work with neo4j can be very frustrating. The crux of the problem is that their documentation isn’t very robust. Here’s what they don’t tell you: Both the cert and the key MUST be in DER format! example…
I spend hours trying to figure this out and here are the fruits of my labor Problem You are unable to create a valid Tomcat Keystore using a GoDaddy crt and key file Curl output may look like this: curl:…
Objective Remove the index.php prefix from your nginx code igniter instance. Assumptions In your main nginx conf file you define how php is called (unix socket or ip:port) You will replace foo.example.com with whatever your domain name is The proper…
Recently I tried passing a bash variable to perl command in bash script, it didn’t end well. Troy Engel from was nice enough to point out the issue: use sed instead of perl for what you need; it’s simpler, faster…
Disk Space Usage Visual Tools Some great tools for viewing disk space usage are: pydf (essential df with colors) Philesight (Web-based implementation of Filelight) ncdu (awesome text-only GUI!) Philesight Philesight is a tool to browse your filesystem and see where…
