Guidelines
This site is for tech Q&A. Please keep your posts focused on the subject at hand.
Ask one question at a time. Don't conflate multiple problems into a single question.
Make sure to include all relevant information in your posts. Try to avoid linking to external sites.
Links to documentation are fine, but in addition you should also quote the relevant parts in your posts.
Most popular tags
bash
linux
question2answer
puppet
mysql
php
devuan
css
array
ubuntu
powershell
puppet-bolt
nginx
apt
ruby
gitlab
cron
vim
firefox
ssh
font
partition
lvm
openssl
dns
password
datetime
postfix
logger
logging
html
jq
json
puppet-provider
pager
azure
bell
certbot
fluxbox
nfs
pip
locale
python
tun-device
openvpn
mirror
hetzner-cloud
web-search
hiera
nag-screen
youtube
responsive-design
systemctl
goss
ssh-agent
windows
cups
printer
bind
request-trace
gpg
shared-folder
virtualbox
sector
raid
disk
environment
glue-record
nis
tcp
foreman
chroot
volume
mount
powerdns
puppetdb
fact
network-interface
systemd
network
java
hash
sha256
solr
letsencrypt
smtp-auth
database
permissions
theme
admin
puppet-agent
fail2ban
email
commandline
process
service-management
upstart
Recent questions tagged fail2ban
Fail2ban scans log files (e.g.
/var/log/apache/error_log) and bans IPs that show the malicious signs – too many password failures, seeking for exploits, etc. Generally Fail2ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. sending an email) could also be configured. [Source: Fail2ban Wiki]
To see more, click for the full list of questions or popular tags.