Taking file with ip ranges, each on it's own line like:
cat ipranges.txt
213.87.86.160-213.87.86.193
213.87.87.0-213.87.88.255
91.135.210.0-91.135.210.255
command returns deaggregated ip ranges using ipcalc deaggregate feature like that:
213.87.86.160/27
213.87.86.192/31
213.87.87.0/24
213.87.88.0/24
91.135.210.0/24
Useful for configuring nginx geo module
Show Sample Output
wget http://nginx.org/download/nginx-1.15.3.tar.gz && tar -xzf 1.15.3.tar.gz && cd nginx-1.15.3 Show Sample Output
I wrote this script to speed up Nginx configs. This (long) one liner can be run via BASH. You will see that we set a variable in bash called 'foo' and the streamline editor (sed) finds 'bar' in 'foo.conf' next it writes that output to a temp file (foo.temp) and removes the first 5 lines (that aren't needed in this case) & lastly it moves (overwrites) foo.temp to foo.conf Show Sample Output
wait nginx processes. Show Sample Output
Nginx (and other webservers like Apache) can be awkward to trace. They run as root, then switch to another user once they're ready to serve web pages. They also have a "master" process and multiple worker processes. The given command finds the process IDs of all Nginx processes, joins them together with a comma, then traces all of them at once with "sudo strace." System trace output can be overwhelming, so we only capture "networking" output. TIP: to kill this complex strace, do "sudo killall strace". Compare with a similar command: http://www.commandlinefu.com/commands/view/11918/easily-strace-all-your-apache-processes Show Sample Output
This command counts the number of blocked NGINX processes every 2 seconds and shows the last 22 measurements You should have at least the number of cpu's in a non-blocked state. The command up to the first ; truncates the log file. Show Sample Output
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