Autor - Bartłomiej Gałęzia - liczba wpisów 450

Mikrotik - Setup VLAN Kategoria: MikroTik | Tagi: mikrotik, vlan | Autor: Bartłomiej Gałęzia

Brigde -> [zakładka] Bridge -> [+]
Name: bridge_vlan_100
[OK]
Brigde -> [zakładka] Ports -> [+]
Interface: ether5 (ether6, ether7, ether8)
Bridge: bridge_vlan_100
[OK]
Interfaces -> [zakładka] VLAN -> [+]
Name: vlan_100
VLAN ID: 100
Interface: bridge_vlan_100
[OK]
IP -> Addresses -> [+]
Address: 192.168.100.1/24
Network: 192.168.100.0
Interface: bridge_vlan_100
[OK]
IP -> Pool -> [+]
Name: pool_vlan_100
Addresses: 192.168.100.150-192.168.100.200
[OK]
IP -> DHCP Server -> [zakładka] DHCP -> [+]
Name: dhcp_vlan_100
Interface: bridge_vlan_100
Address Pool: pool_vlan_100
[OK]
IP -> DHCP Server -> [zakładka] Networks -> [+]
Address: 192.168.100.0/24
Gateway: 192.168.100.1
DNS Servers: 8.8.8.8
[OK]

https://www.youtube.com/watch?v=mKmE9Iv3lhY

IP > DHCP Server > [+] > zakładka [Script]

Lease Script:

:local recipient "user@domain.com"
/ip dhcp-server lease

:if ($leaseBound = 1 && ([/ip dhcp-server lease find where dynamic mac-address=$leaseActMAC])) do={
	:do {
        :local dhcphostname $"lease-hostname"        
		:tool e-mail send to=$recipient subject="DHCP Address Alert [$leaseActIP] [$leaseActMAC] [$dhcphostname]" body="MAC address: [$leaseActMAC]\nIP address: [$leaseActIP]\nDHCP Server: [$leaseServerName]\nHostname: [$dhcphostname]"
		#:log info "Sent DHCP alert for MAC $leaseActMAC"
        
	} on-error={:log error "Failed to send alert email to $recipient"}}

https://forum.mikrotik.com/viewtopic.php?t=153641

Interfaces > [zakładka] Interfaces List > [Lists] > [+]
Name: allow_winbox > [OK]
Interfaces > [zakładka] Interfaces List > [+]
List: allow_winbox
Interface: ether2
[OK]

Teraz ustawiamy listę adresów z której będzie można wyszukiwać winboxa.

IP ->Neighbors -> [Discovery Settings]
Interface: [ ] allow winbox
[OK]

Teraz wyszukiwanie przez winboxa będzie dostępne tylko z interfejsu ether2.

Z ether1-WAN nikt nie wyszuka.

Można jeszcze dodać blokowanie portu winbox 8291 na interfejsie ether1-WAN żeby nikt z zewnątrz się nie podłączył.

IP > Firewall > [zakładka] Filter Rules > [+]
[zakładka] General
Chain: input
Protocol: 6 (tcp)
Dst. Port: 8291
In. Interface: ether1-WAN
[zakładka] Action
Action: drop
[OK]

Mikrotik - Logs backup - Local, FTP, e-mail Kategoria: MikroTik | Tagi: backup, logs, mikrotik | Autor: Bartłomiej Gałęzia

Skrypt do zrzucania logów do pliku + wysyłanie ich na maila i FTP

System -> Scripts -> [+]
Name = "Logs_backup"
Source
 # months array
 :local months ("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");

 # get time
 :local ts [/system clock get time]
 :set ts ([:pick $ts 0 2].[:pick $ts 3 5].[:pick $ts 6 8])

 # get Date
 :local ds [/system clock get date]

 # convert name of month to number
 :local month [ :pick $ds 0 3 ];
 :local mm ([ :find $months $month -1 ] + 1);
 :if ($mm < 10) do={ :set mm ("0" . $mm); }

 # set $ds to format YYYY-MM-DD
 :set ds ([:pick $ds 7 11] . $mm . [:pick $ds 4 6])

 # file name for logs backup - servername-YYYYMMDD-HHMMSS_logs.txt
 :local fname ([/system identity get name]."-".$ds."-".$ts."_logs.txt")
 :local sfname ("/".$fname1)

 # backup logs
 /log print file=$sfname1
 :log info message="Logs backup finished (1/1).";

# ftp server
 :local ftphost "192.168.1.1"
 :local ftpuser "ftp_user"
 :local ftppassword "ftp_password"
 :local ftppath "/folder/subfolder/"

 # upload the system backup
 :log info message="Uploading logs backup (1/1)."
 /tool fetch address="$ftphost" src-path=$sfname1 user="$ftpuser" mode=ftp password="$ftppassword" dst-path="$ftppath/$fname" upload=yes

 # delay time to finish the upload - increase it if your backup file is big
 #:delay 30s;

:local mname ([/system identity get name]." - Backup logs - ".$ds)
:local mailTo "admin@domain.com"
:local emailbody ("Plik z backupem logow: ".$sfname1)

/tool e-mail send subject=$mname to=$mailTo body=$emailbody

Następnie należy dodać skrypt do Schedulera

System -> Scheduler -> [+]
Name = "Logs_backup"
Interval ="1d 00:00:00"
On Event
/system script run Logs_backup

iRedMail - nftables - Blacklist Kategoria: Linux | Tagi: blacklist, iredadmin, nftables | Autor: Bartłomiej Gałęzia

vim /etc/nftables.conf

...

table inet filter {

    set blacklist-v4 {
        type ipv4_addr
             flags interval
             auto-merge
             elements = { 185.176.221.167, 81.30.158.0/24, 213.137.128.0/19 }
    }

...

        # accept traffic originated from us
        ct state established,related accept

        # drop ip form blacklist
        ip saddr @blacklist-v4 drop

....

service nftables restart

https://forum.iredmail.org/topic16335-nftables-rule-no-ping-floods.html

iRedMail - Fail2Ban email notification Kategoria: Linux | Tagi: fail2ban, iredmail | Autor: Bartłomiej Gałęzia

vim /etc/fail2ban/jail.d/postfix.local
action      = nftables-multiport[name=postfix, port="80,443,25,587,465,110,995,143,993,4190", protocol=tcp]
              banned_db[name=postfix, port="80,443,25,587,465,110,995,143,993,4190", protocol=tcp]
              sendmail[name=Postfix, dest=user@domain.com, sender=root]
service fail2ban restart

https://forum.iredmail.org/topic9644-fail2ban-blocked-ips.html

Msmtp - wysyłanie maili z konsoli przez SMTP Kategoria: Linux | Autor: Bartłomiej Gałęzia

aptitude install msmtp
vim /etc/msmtprc
# Set default values for all following accounts.
defaults
auth           on
tls            on

# Account 1
account        account1
host           mail.domain.com
port           587
from           user@domain.com
user           user@domain.com
password       userpassword

# Set a default account
account default : account1

aliases /etc/aliases
vim /etc/aliases
root: root@domain.com
username: username@domain.com
ln -s /usr/bin/msmtp /usr/sbin/sendmail

Test w CRON

crontab -e
* * * * *   echo "A message from Cron"

albo

crontab -e
* * * * *   /scripts/backup.sh 2>&1 | msmtp youremail@provider.com

https://wiki.debian.org/msmtp

DELL - iDRAC - Setup e-mail notifications Kategoria: | Tagi: dell, idrac, poweredge | Autor: Bartłomiej Gałęzia

iDRAC Settings -> Network -> Common Settins

Register iDRAC on DNS - check
DNS iDRAC Name - hostname
Static DNS Domain Name - domain.com

[Apply]

Server -> Alerts -> SNMP and Email Settings

SMTP (Email) Server Address Settings

SMTP (Email) Server IP Address or FQDN / DNS Name - mail.domain.com
Enable Authentication - check
Username - hostname@domain.com
Password - *****
SMTP Port Number - 587

[Apply]

Destination Email Addresses
Email Alert 1 - check - helpdesk@domain.com
[Apply]

 

Linux mount Windows Share - CIFS Kategoria: Linux | Autor: Bartłomiej Gałęzia

aptitude install cifs-utils
mkdir /mnt/win_share
sudo mount -t cifs -o username=<win_share_user>,password=<win_share_password> //WIN_SHARE_IP/<share_name> /mnt/win_share -o vers=1.0

https://linuxize.com/post/how-to-mount-cifs-windows-share-on-linux/

iRedMail - Changes SSH port Kategoria: Linux | Tagi: iredmail, postfix | Autor: Bartłomiej Gałęzia

vim /etc/ssh/sshd_config
Port 1234
vim /etc/nftables.conf
chain input {
...
tcp dport 1234 accept
...
}
services nftables restart
services sshd restart

iRedMail - Create multiple users Kategoria: Linux | Tagi: iredmail, postfix | Autor: Bartłomiej Gałęzia

cd /root/iRedMail-1.3.1/tools/
bash create_mail_user_SQL.sh username@domain.com 'Test123' > username.sql
mysql -u dbuser -pdbpass -h localhost vmail < username.sql

zmień folder /var/vmail na taki jaki był wprowadzony przy instalacji

https://docs.iredmail.org/sql.create.mail.user.html

Imapsync - migracja poczty przez IMAP Kategoria: Linux | Autor: Bartłomiej Gałęzia

1. Installation.

https://imapsync.lamiral.info/INSTALL.d/INSTALL.Debian.txt

aptitude install libauthen-ntlm-perl libcgi-pm-perl libcrypt-openssl-rsa-perl libdata-uniqid-perl libencode-imaputf7-perl libfile-copy-recursive-perl libfile-tail-perl libio-socket-inet6-perl libio-socket-ssl-perl libio-tee-perl libhtml-parser-perl libjson-webtoken-perl libmail-imapclient-perl libparse-recdescent-perl libmodule-scandeps-perl libreadonly-perl libregexp-common-perl libsys-meminfo-perl libterm-readkey-perl libtest-mockobject-perl libtest-pod-perl libunicode-string-perl liburi-perl libwww-perl libtest-nowarnings-perl libtest-deep-perl libtest-warn-perl make cpanminus
cd /home/username/
wget -c https://imapsync.lamiral.info/dist2/imapsync-1.977.tgz
tar -xf imapsync-1.977.tgz
cd imapsync-1.977

2. Usage

https://imapsync.lamiral.info/#DOC_BASIC_UNIX

User login

./imapsync --host1 mail.host.pl --user1 user1@host.pl --password1 "sicret_pass" --host2 mail.host2.pl --user2 user1@host2.pl --password2 "sicret_pass2"

Master User login

./imapsync --host1 mail.host.pl --user1 "user1@host.pl*masteruser_login" --password1 "masteruser_pass" --host2 mail.host2.pl --user2 "user1@host2.pl*masteruser2_login" --password2 "masteruser_pass2"

3. Import credentials from CSV

vim sync_loop_unix.sh
echo Looping on account credentials found in file.txt
echo

{ while IFS=';' read  h1 u1 p1 h2 u2 p2 fake
    do 
        { echo "$h1" | tr -d '\r' | egrep '^#|^ *$' ; } > /dev/null && continue # this skip commented lines in file.txt
        echo "==== Starting imapsync from host1 $h1 user1 $u1 to host2 $h2 user2 $u2 ===="
        ./imapsync --notls1 --host1 "$h1" --user1 "$u1" --password1 "$p1" \
                 --host2 "$h2" --user2 "$u2" --password2 "$p2" \
                 "$@"  
        echo "==== Ended imapsync from host1 $h1 user1 $u1 to host2 $h2 user2 $u2 ===="
        echo
    done 
} < file.txt
vim file.txt
mail.host.pl;user1@host.pl*masteruser_login;masteruser_pass;mail.host2.p;user1@host2.pl*masteruser2_login;masteruser_pass2
mail.host.pl;user2@host.pl*masteruser_login;masteruser_pass;mail.host2.p;user2@host2.pl*masteruser2_login;masteruser_pass2
chmod +x sync_loop_unix.sh
./sync_loop_unix.sh

https://imapsync.lamiral.info/examples/sync_loop_unix.sh

https://imapsync.lamiral.info/examples/file.txt

https://imapsync.lamiral.info/

Dovecot - Master user Kategoria: Linux | Autor: Bartłomiej Gałęzia

vim /etc/dovecot/dovecot.conf
auth_master_user_separator = *
passdb {
driver = passwd-file
args = /etc/dovecot/dovecot-master-users
master = yes
}
doveadm pw -s SSHA512
Enter new password:
Retype new password:
{SSHA512}HuxqgaziXpd4pQo17w/De1Opw7fhP6YLFpIBPpzR8AtZPjeEY2ahJruambrCM28CKb3rr4JC6zJbMHLDyjc6b
chmod +w /etc/dovecot/dovecot-master-users
vim /etc/dovecot/dovecot-master-users
username@domain.com:{SSHA512}HuxqgaziXpd4pQo17w/De1Op...

https://imapsync.lamiral.info/FAQ.d/FAQ.Dovecot.txt

https://doc.dovecot.org/configuration_manual/authentication/master_users/

https://doc.dovecot.org/configuration_manual/authentication/authentication_mechanisms/

https://docs.iredmail.org/dovecot.master.user.html

Dovecot 1.2.17

https://www.dovecot.org/list/dovecot/2015-October/102294.html

vim /usr/local/etc/dovecot.conf
passdb passwd-file {
args = /usr/local/etc/dovecot.passwd.masterusers
pass = yes
master = yes
}
vim /usr/local/etc/dovecot.passwd.masterusers
masteruser:{PLAIN}masterpassword

iRedAdmin PRO - upgrade Kategoria: Linux | Tagi: iredadmin, iredmail, postfix | Autor: Bartłomiej Gałęzia

cd /root/
wget -c https://domena.com/iRedAdmin-Pro-SQL-4.4.tar.bz2
tar xjf iRedAdmin-Pro-SQL-4.4.tar.bz2
cd iRedAdmin-Pro-SQL-4.4/tools/
bash upgrade_iredadmin.sh

https://docs.iredmail.org/migrate.or.upgrade.iredadmin.html

Download latest release of CardDav plugin.

https://plugins.roundcube.net/#/packages/roundcube/carddav

https://packagist.org/packages/roundcube/carddav

https://github.com/blind-coder/rcmcarddav/releases

https://github.com/blind-coder/rcmcarddav/releases/download/v3.0.3/carddav-3.0.3.zip

cd /opt/www/roundcubemail/plugins/
wget -c https://github.com/blind-coder/rcmcarddav/releases/download/v3.0.3/carddav-3.0.3.zip
unzip carddav-3.0.3.zip
cd carddav
cp config.inc.php.dist config.inc.php
vim /opt/www/roundcubemail/config/config.inc.php
// PLUGINS
$config['plugins'] = array('managesieve', 'password','carddav');

iRedAPD 4.4 Upgrade - Internal server error Kategoria: Linux | Tagi: iredmail | Autor: Bartłomiej Gałęzia

https://forum.iredmail.org/topic17082-internal-server-error-iredadmin.html

https://docs.iredmail.org/upgrade.iredapd.html

AIDA - Automatic report scipt Kategoria: Windows | Tagi: aida | Autor: Bartłomiej Gałęzia

Apps\AIDA_ETC\AIDA64_Engineer\aida64.exe /RMREPORT >> Report_ETC_%COMPUTERNAME%_%DATE%.html

Conky - Install and autostart Kategoria: Raspberry PI | Tagi: monitoring, conky | Autor: Bartłomiej Gałęzia

sudo aptitude install conky
wget -O /home/pi/.conkyrc https://blog.cssoft.pl/images/conkyrc.txt
sudo vim /usr/bin/conky.sh
#!/bin/sh
(sleep 4s && conky) &
exit 0
sudo vim /etc/xdg/autostart/conky.desktop
[Desktop Entry]
Name=conky
Type=Application
Exec=sh /usr/bin/conky.sh
Terminal=false
Comment=system monitoring tool.Categories=Utility;
sudo reboot

https://html.dynu.net/index.php/installing-conky-linux/

How to add weather info

sudo vim /home/pi/.conkyrc
${font Dejavu Sans Mono:size=8}${alignc}${color green}${execpi 300 curl wttr.in/Warsaw?T0 --silent --max-time 3}

https://askubuntu.com/questions/1190907/how-can-i-get-conky-to-display-weather