Fail2ban/fr

db configuration show sshd

yum --enablerepo=smecontribs install smeserver-fail2ban

db configuration setprop masq status enabled
expand-template /etc/rc.d/init.d/masq
/etc/init.d/masq restart
signal-event fail2ban-conf

db configuration setprop masq status enabled
signal-event post-upgrade; signal-event reboot

 # config show sshd

 # config setprop sshd AutoBlock disabled
 # signal-event remoteaccess-update

# config show fail2ban 
fail2ban=service
Mail=enabled
status=enabled

db configuration setprop fail2ban Mail disabled

signal-event fail2ban-conf

db configuration setprop httpd-e-smith Fail2Ban disabled
signal-event fail2ban-conf

[root@sme8 ~]# fail2ban-client status 
Status
|- Number of jail:	10
`- Jail list:		http-overflows, http-noscript, http-auth, sogo, pam-generic, ssh-ddos, http-scan, ssh, qpsmtpd, recidive

[root@sme8 ~]# fail2ban-client status ssh

nano /root/checklist_ban

#!/bin/bash
#lancer le script en sudo 
JAILS=$(fail2ban-client status | grep " Jail list:" | sed 's/`- Jail list:\t\t//g' | sed 's/,//g')
for j in $JAILS
do
echo "$j $(fail2ban-client status $j | grep " Currently banned:" | sed 's/   |- Currently banned:\t//g')"
done

chmod 700 /root/checklist_ban

/root/checklist_ban

fail2ban-client status qpsmtpd

Status for the jail: qpsmtpd
|- filter
|  |- File list:	/var/log/qpsmtpd/current /var/log/sqpsmtpd/current 
|  |- Currently failed:	5
|  `- Total failed:	119
`- action
   |- Currently banned:	1
   |  `- IP list:	93.17.128.20 
   `- Total banned:	1

fail2ban-client status

fail2ban-client set qpsmtpd unbanip 93.17.128.20 

fail2ban-client set JAIL unbanip MYIP

/etc/e-smith/templates-custom/etc/fail2ban/jail.conf

mkdir -p  /etc/e-smith/templates-custom/etc/fail2ban/jail.conf

expand-template /etc/rc.d/init.d/masq
/etc/init.d/masq restart
signal-event fail2ban-conf

[DEFAULT]
ignoreip = 127.0.0.0/8 192.168.XXX.XXX 192.168.XXX.0/24
bantime  = 1800
findtime  = 900
maxretry = 3
usedns = yes
backend = auto

[ssh]
enabled  = true
filter   = sshd
logpath  = /var/log/sshd/current
action   = smeserver-iptables[port="22",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="SSH",dest=root]

[ssh-ddos]
enabled  = true
filter   = sshd-ddos
logpath  = /var/log/sshd/current
action   = smeserver-iptables[port="22",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="SSH",dest=root]

[qpsmtpd]
enabled  = true
filter   = qpsmtpd
logpath  = /var/log/*qpsmtpd/current
maxretry = 9
action   = smeserver-iptables[port="25,465",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="Qpsmtpd",dest=root]

[http-overflows]
enabled  = true
filter   = apache-overflows
logpath  = /var/log/httpd/error_log
action   = smeserver-iptables[port="80,443",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="Apache (overflows)",dest=root]

[http-noscript]
enabled  = true
filter   = apache-noscript
logpath  = /var/log/httpd/error_log
action   = smeserver-iptables[port="80,443",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="Apache (noscript)",dest=root]

[http-scan]
enabled  = true
filter   = apache-scan
logpath  = /var/log/httpd/error_log
action   = smeserver-iptables[port="80,443",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="Apache (scan)",dest=root]

[http-auth]
enabled  = true
filter   = apache-auth
logpath  = /var/log/httpd/error_log
action   = smeserver-iptables[port="80,443",protocol=tcp,bantime=1800]
          smeserver-sendmail[name="Apache (auth)",dest=root]

[pam-generic]
enabled  = true
filter   = pam-generic
logpath  = /var/log/secure
maxretry = 6
action   = smeserver-iptables[bantime=1800]
          smeserver-sendmail[name="PAM generic",dest=root]

[recidive]
enabled  = true
filter   = recidive
logpath  = /var/log/fail2ban/daemon.log
bantime  = 604800
findtime = 86400
maxretry = 5
backend  = polling
action   = smeserver-iptables[bantime=604800]
          smeserver-sendmail[name="Recidive",dest=root]

yum remove smeserver-fail2ban fail2ban

fail2ban-regex [LOG] [REGEX]

fail2ban-regex /var/log/qpsmtpd/current /etc/fail2ban/filter.d/qpsmtpd.conf

^\s*\d+\s*logging::logterse plugin \(deny\): ` <HOST>\s*.*90\d.*msg denied before queued$

^\s*\d+\s*logging::logterse plugin \(deny\): \` <HOST>\s*.*90\d.*msg denied before queued$

mkdir /root/bin
nano -w /root/bin/IP_list.sh

#!/bin/sh
# Définir les variables de l'interface en ligne de commande de façon à pouvoir les lire.
TYPE=$1
LOG=$2

# Définir la chaîne grep principale
SEARCH="Ban ((1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])"

# Ajouter le terme de recherche
SEARCH="\[$TYPE]\ $SEARCH"

# Maintenant, cherchez dans le journal
grep -oE "\[$TYPE\] Ban ((1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])" $LOG

chmod 755 /root/bin/IP_list.sh

IP_list.sh [service] [log]

IP_list.sh qpsmtpd /var/log/fail2ban/daemon.log

mkdir /root/bin
vim /root/bin/sfail2ban

#!/bin/bash
for SERVI in $(fail2ban-client status|grep 'Liste des prisons'|cut -d':' -f2|sed 's/, / /g'| sed -e 's/^[ \t]*//')
do
fail2ban-client status $SERVI |grep -E 'liste IP|Statut de la prison'|sed 'N;s/\n/:/'|cut -d: -f2,4
done

chmod 755 /root/bin/sfail2ban

sfail2ban

# sfail2ban
ftp:	 
imap:	 
pam-generic:	 
qpsmtpd:	 
recidive:	141.98.80.15
ssh:	
ssh-ddos:	
wordpress:	

mkdir -p /root/bin
vi /root/bin/bansummary.sh

#!/bin/bash
 echo -e \
 "IP             \t"\
 "BanTime             \t"\
 "UnbanTime           \t"\
 "Jail"

 for ban in $(db fail2ban show |awk -F\= ' $2=="ban" {print $1}'); 
   do
     IP=$(db fail2ban getprop $ban Host)
     Bantime=$(date +"%F %T" -d @$(db fail2ban getprop $ban BanTimestamp))
     UnBanTime=$(date +"%F %T" -d @$(db fail2ban getprop $ban UnbanTimestamp))
     LastJail=$(zgrep -H "Ban $IP" $(find /var/log/fail2ban -type f -ctime -7) |tail -1 |awk '{print $6}') 

     printf "%-15s" "$IP"
     echo -e "\t$Bantime\t$UnBanTime\t$LastJail"
   done

chmod 755 /root/bin/bansummary.sh

bansummary.sh

IP             	BanTime             	UnbanTime           	Jail
 46.246.39.228  	2017-09-09 18:45:00	2017-09-10 18:45:00	[http-scan]
 124.239.180.102	2017-09-09 12:07:32	2017-09-10 12:07:32	[http-scan]
 212.237.54.93  	2017-09-09 19:27:32	2017-09-10 19:27:32	[http-scan]

ID	Product	Version	Status	Summary (12 tasks) ⇒
12453	SME Contribs	10.0	CONFIRMED	extra coma leading to empty string fails ignore ip template fragment
12402	SME Contribs	10.0	UNCONFIRMED	Using smeserver-git makes smeserver-fail2ban ban even though whitelisted.
12285	SME Contribs	10.0	UNCONFIRMED	WARNING message in daemon log after reboot about ssh
12199	SME Contribs	10.0	CONFIRMED	add externalip /internal ip to whitelist
11805	SME Contribs	10.0	CONFIRMED	NFR: use fail2ban db to list banned host
11801	SME Contribs	10.0	CONFIRMED	NFR: add a permanent/custom or manual jail
10799	SME Contribs	Futur	CONFIRMED	NFR: Fail2ban OpenVPN routed templates
10798	SME Contribs	9.2	CONFIRMED	NFR convert long mask to bit mask if entered as long mask
10786	SME Contribs	9.2	CONFIRMED	lockout without a full masq restart
10638	SME Contribs	9.2	CONFIRMED	IgnoreIP entry created with trailing slash stopping f2b from working
10422	SME Contribs	9.2	UNCONFIRMED	NFR: portscan jail
8955	SME Contribs	9.2	UNCONFIRMED	Fail2Ban error in qpsmtpd.conf regex

Fail2ban/fr

Contents

Fail2ban pour SME Server

Mainteneur

Description

Systèmes requis

Koozali SME v9/v10

Installation sur Koozali SME V10

Désactiver la fonctionalité AutoBlock sur SME 9.x et supérieur

Commandes DB

Services

Bannissements sélectifs

Utilisation de Fail2ban

Lister toutes les prisons

Lister les IP bannis d'une prison spécifique

Script qui liste combien d'IP sont interdits dans toutes les prisons

Réintégrer une IP

Jail.conf

Default jail.conf

Désinstallation

Contributions des utilisateurs

Test de nouvelles expressions régulières

Afficher les adresses IP bannies par le service

Consultez le journal de fail2ban

Vérifiez l'IP bannie par fail2ban pour tous les prisons actives

Imprimez un résumé de la base de données de fail2ban

WordPress

Bogues

Journal des modifications

Navigation menu

Page actions

Page actions

Personal tools

Koozali SME Server

Recent activities

Koozali resources

Koozali SME Server wiki

Tools

Search

	Skill level: Facile
	Les instructions sur cette page peuvent être suivies par un débutant.

	Astuce :
	Fail2ban n'est pas seulement un outil contre les attaques par force brute sur SSH, mais il peut être un outil utile contre les attaques de protocole http ou spam sur votre serveur. Voir la section prison.

	Attention :
	à défaut d'exécuter l'une de ces commandes, l'accès au réseau sera verrouillé le temps de recharger les règles d'iptables.

	Attention :
	le service de masquage doit être activé pour que Fail2ban fonctionne correctement ; si vous le désactivez, Fail2ban ne bannira rien.

	Note :
	votre réseau et votre serveur sont dans la liste des adresses IP ignorées par fail2ban (voir IgnoreIP.)