• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here: Home » How To Configure Fail2ban To Send Daily Email Report

By Abhishek Ghosh December 20, 2018 12:14 am Updated on December 20, 2018

How To Configure Fail2ban To Send Daily Email Report

Advertisement

Fail2Ban is a robust tool. By default the system of Fail2Ban sends an email with each ban. There is an action there named mail-buffered. That action expects 5 ban (default) before sending you an email. But a summary report probably more practical. Here are the required steps on how to configure Fail2ban to send daily email report. This system needs to configure mail server on the server under question. However, one can configure the bash scripts to use any transactional email service (like SendGrid) based on their API.

How To Configure Fail2ban To Send Daily Email Report

 

Configure Fail2ban To Send Daily Email Reports

 

Based on the mail-buffered action, instead of having an email for x number of bans, we can send all bans as report every day at a specific time. We need something like this :

Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
[Definition]
 
actionstart = echo -en "***** Fail2Ban *****\n\nNotification Type: RECOVERY\n\nService: <name>\nHost: <server>\nAddress: <serverip>\nState: STARTED\n\nDate/Time: `date`\n\nAdditional Info:\n\n" | mail -a "From: <from>" -s "** RECOVERY alert - <server>/<name> jail is STARTED **" <dest>
 
actionstop = echo -en "***** Fail2Ban *****\n\nNotification Type: ALERT\n\nService: <name>\nHost: <server>\nAddress: <serverip>\nState: STOPPED\n\nDate/Time: `date`\n\nAdditional Info:\n\n" | mail -a "From: <dest>" -s "** ALERT alert - <server>/<name> jail is STOPPED **" <dest>
 
actioncheck =
 
actionban = echo `date | awk -F ' ' '{print $4}'`" - <ip> (<failures> attempts against <name>)" >> <tmpfile>
 
actionunban =
 
[Init]
 
tmpfile = /tmp/fail2ban-mail.txt
 
# default dest
dest = root

Notice the /tmp/fail2ban-mail.txt line. You probably will need to create the file and give proper permission to write :

Advertisement

---

Vim
1
2
touch /tmp/fail2ban-mail.txt
chmod 777 /tmp/fail2ban-mail.txt

Next, we need a configaration for jail.conf :

Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
fromt   = Fail2ban
servert = host.example.com
serveript = 127.0.0.1
emailt  = webmaster@example.com
 
[ssh-iptables]
 
enabled  = true
filter   = sshd
action   = iptables[name=SSH, port=ssh, protocol=tcp]
           mail-daily[name=SSH, dest=%(emailt)s, from=%(fromt)s, server=%(servert)s, serverip=%(serveript)s]
logpath  = /var/log/sshd/current
maxretry = 3

Next we need a bash script to create the daily story :) :

report.sh
Vim
1
2
3
4
5
6
7
8
9
10
11
12
13
#!/bin/sh
 
SERVER="host.example.com"
IP="127.0.0.1"
FROM="Fail2ban "
TO="webmaster@example.com"
 
TMP=/tmp/fail2ban-mail.txt
 
if [ -f $TMP ]; then
echo -en "***** Fail2Ban *****\n\nNotification Type: INFO\n\nService: *\nHost: $SERVER\nAddress: $IP\nState: OK\n\nDate/Time: `date`\n\nAdditional Info:\n\nThese hosts have been banned on `date --date '1 days ago' +"%a %d %b"`\n`cat $TMP`" | mail -a "From: $FROM" -s "** INFO alert - $SERVER jail REPORT **" $TO
rm $TMP
fi

As final step, you need to create a cron :

Vim
1
10 0 * * * /etc/fail2ban/action.d/report.sh> / dev / null

 

Alternate way

 

Actually there is many ways to do the same work. We can use a bash script to get the summary :

Vim
1
2
3
!/bin/bash
 
grep "Ban " /var/log/fail2ban.log | grep date +%Y-%m-%d -d yesterday | /usr/bin/sort | /usr/bin/logresolve | /usr/bin/uniq -c | /usr/bin/sort -n | mail -s "Fail2Ban Yesterday Summary date +%Y-%m-%d -d yesterday" name@example.com

or this one :

Vim
1
2
3
4
5
6
!/bin/bash
 
grep "Ban " /var/log/fail2ban.log | grep $(date +%Y-%m-%d -d yesterday) | \
sed -e 's/Ban [0-9\.]*/Ban/' | sed -e 's/\( [0-2][0-9]\):[0-9]\{2\}:[0-9]\{2\},[0-9]\{3\}/\1h/' | \
/usr/bin/sort -n | /usr/bin/uniq -c | \
mail -s "Fail2Ban Summary $(date +%Y-%m-%d -d yesterday)" root

However, the command will suck significant resource and take longer time. Logwatch has own plugin, that is probably a different discussion.

Tagged With fail2ban send email on ban , fail2ban report email , fail2ban email notifications , fail2ban email alert , fail2ban email , fail2ban configure action , fail2ban check mail , fail2ban alerts , fail2ban action mail , email fail2ban

This Article Has Been Shared 261 Times!

Facebook Twitter Pinterest
Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Orthopaedic Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to How To Configure Fail2ban To Send Daily Email Report

  • WordPress Multisite on Nginx on Ubuntu 14.04 on HP Cloud

    Here is a Step by Step Guide on Setting Up WordPress Multisite on Nginx on Ubuntu 14.04 on HP Cloud with All Commands and the Configuration.

  • Install Apache Drill on Ubuntu 16.04 LTS Single Cloud Server

    Drill is SQL Query Engine for Hadoop, NoSQL, Cloud Storage. Here is How to Install Apache Drill on Ubuntu 16.04 LTS Single Cloud Server.

  • Accessing Bluemix MySQL Database From External Server

    Here is How You’ll Be Accessing Bluemix MySQL Database From External Server With Root Access. On CLI You Need MySQL Client to Work on MySQL.

  • Ondřej Surý’s PPA For Ubuntu 18.04 LTS LAMP, LEMP : Current Status

    Before Upgrade, We Need to Check Resources, Incompatibilities and Needed Changes in Settings. Here is Current Status of Ondřej Surý’s PPA For Ubuntu 18.04 LTS For Setup of LAMP, LEMP Server.

  • How to Install or Renew SSL Cert on Ubuntu 18.04, Apache 2.4 (GeoTrust/RapidSSL/Comodo)

    Here Are Detailed Steps & Commands on How to Install SSL Cert on Ubuntu 18.04, Apache 2.4. SSL Cert Provider Can Be GeoTrust, RapidSSL, Comodo Like CA.

Additionally, performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

You can subscribe to our Free Once a Day, Regular Newsletter by clicking the subscribe button below.

Click To Subscribe

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (21K Followers)
  • Twitter (5.3k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • 5 Tech Tools to Help With Business Growth April 22, 2021
  • Corona Pandemic as Cloud Adoption Driver April 20, 2021
  • How to Save Electricity Consumption During the Pandemic April 20, 2021
  • Best Powerpoint Templates for Communicating IoT Concepts April 17, 2021
  • How to Build a DIY Water Level Indicator? April 16, 2021

 

About This Article

Cite this article as: Abhishek Ghosh, "How To Configure Fail2ban To Send Daily Email Report," in The Customize Windows, December 20, 2018, April 22, 2021, https://thecustomizewindows.com/2018/12/how-to-configure-fail2ban-to-send-daily-email-report/.

Source:The Customize Windows, JiMA.in

 

This website uses cookies. If you do not want to allow us to use cookies and/or non-personalized Ads, kindly clear browser cookies after closing this webpage.

Read Cookie Policy.

PC users can consult Corrine Chorney for Security.

Want to know more about us? Read Notability and Mentions & Our Setup.

Copyright © 2021 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy