Problem:

shell: # ./myexample.php

-bash: myexample.php cannot execute: required file not found

myexample.php:

Commandline:

HISTSIZE=9999;HISTFILESIZE=9999

/root/.bashrc

/path/to/user/.bashrc

HISTSIZE=9999
HISTFILESIZE=9999

Change it globally:

/etc/bash.bashrc.

Problem:

Problem:

ModSecurity: Warning. Operator GE matched 4 at TX:outgoing_points.

Solution?

Problem:

Strato Dedicated Server : no answer on ping, traceroute

Solution:

Strato Firewall Rules >> add ICMP

Problem:

Warning: Undefined array key "url" in Drupal\Core\Asset\CssCollectionOptimizerLazy->optimizeGroup() on line 156 ...

Referrer:  mysite.example/sites/default/files/css/css_...css?delta=0&include=...&language=de&theme=mytheme 

Solution?

Check Sleep Mode:

Save all iptables rules to a .txt file and restore later (as root user):

iptables-save > /path/to/my-iptables-rules.txt
iptables-restore < /path/to/my-iptables-rules.txt

netstat

netstat -tnpa | grep sshd

fuser

fuser -u ssh/tcp

ps

ps -ef | grep 'sshd'

Reboot um 14:25

shutdown -r 14:25

Reboot nach 2 Stunden

sleep 7200 && reboot