diff --git a/check_eth b/check_eth
deleted file mode 100755
index 650db60..0000000
--- a/check_eth
+++ /dev/null
@@ -1,181 +0,0 @@
-#!/usr/bin/perl -w
-
-use strict;
-use warnings;
-use Getopt::Long;
-
-use constant BITS  => 8;
-use constant BYTES => 1;
-
-my $iface     = "";
-my $bandwidth = "";
-my $warning   = "";
-my $critical  = "";
-my $percent   = "";
-
-GetOptions(
-    "i|interface=s" => \$iface,
-    "w|warning=s"   => \$warning,
-    "c|critical=s"  => \$critical,
-    "b|bandwidth=s" => \$bandwidth,
-    "p|percent"     => \$percent
-);
-
-my $bitmod = BYTES;
-
-my $tmpfile = "/tmp/traffic";
-my $output  = "";
-my $line    = "";
-
-my %status = ( 'OK'       => 0, 
-               'WARNING'  => 1, 
-               'CRITICAL' => 2, 
-               'UNKNOWN'  => 3 
-           );
-my $exit_status = $status{OK}; 
-
-my %data = ( 'time'    => 0, 'last_time'    => 0, 
-             'rxbytes' => 0, 'last_rxbytes' => 0,
-             'txbytes' => 0, 'last_txbytes' => 0
-         );
-
-my %speed = ( 'tx' => 0, 
-              'rx' => 0, 
-              'interval' => 1 
-          );
-
-usage() if ( !$iface || !$warning || !$critical ); 
-if ( $percent ) {
-    usage() if ( !$bandwidth || $bandwidth !~ /^\d+[kKmMgG]$/ );
-    usage() if ( $warning !~ /^\d{1,3}$/ || $warning>100 || $critical !~ /^\d{1,3}$/ || $critical>100 );
-    $bandwidth = human2bytes($bandwidth);
-} else {
-    $warning = human2bytes($warning);
-    $critical = human2bytes($critical);
-    usage() if ( !$warning || !$critical )
-}
-usage() if ( $warning > $critical );
-
-open ( NET, "</proc/net/dev" ) or die ( "Can't open /proc/net/dev: $!" );
-while ( <NET> ) {
-    chomp();
-    if ( $_ =~ /^\s*$iface\:\s*(\d+)(?:\s*(?:\d+)){7}\s*(\d+)(?:\s*(?:\d+)){7}\s*$/ ) {
-        $data{time} = time - 1; 
-        $data{rxbytes} = $1; 
-        $data{txbytes} = $2;
-        last;
-    }
-}
-close( NET );
-
-if ( $data{time} == 0 && $data{rxbytes} == 0 && $data{txbytes} == 0 ) {
-    exit $status{UNKNOWN};
-}
-
-if ( open( TMP, "<$tmpfile-$iface" ) ) {
-    my @line = <TMP>; chomp( @line );
-    ( $data{last_time}, $data{last_rxbytes}, $data{last_txbytes} ) = split( ":", $line[0] );
-}
-
-if ( open( TMP, ">$tmpfile-$iface" ) ) {
-    print( TMP "$data{time}:$data{rxbytes}:$data{txbytes}\n" );
-    close( TMP ); 
-}
-
-$data{last_time} = $data{time} if ( !$data{last_time} || $data{last_time} > $data{time} );
-$data{last_rxbytes} = $data{rxbytes} if ( !$data{last_rxbytes} || $data{last_rxbytes} > $data{rxbytes} );
-$data{last_txbytes} = $data{txbytes} if ( !$data{last_txbytes} || $data{last_txbytes} > $data{txbytes} );
-
-$speed{interval} = $data{time} - $data{last_time} + 1;
-$speed{rx} = ( $data{rxbytes} - $data{last_rxbytes} ) / $speed{interval};
-$speed{tx} = ( $data{txbytes} - $data{last_txbytes} ) / $speed{interval};
-
-$output = "RX Bytes: ". bytes2human($data{rxbytes}) ."B, TX Bytes: ". bytes2human($data{txbytes}) ."B; ";
-$output .= sprintf( "RX Speed: %s%sps, TX Speed: %s%sps; ", 
-           bytes2human($speed{rx}*$bitmod), ($bitmod==BITS)?"b":"B", bytes2human($speed{tx}*$bitmod), ($bitmod==BITS)?"b":"B" );
-
-if ( $percent ) {
-    if ( ( $speed{rx} / $bandwidth ) * 100 > $critical || ( $speed{tx} / $bandwidth ) * 100 > $critical ) {
-        $exit_status = $status{CRITICAL};
-        $output .= "CRITICAL";
-    } elsif ( ( $speed{rx} / $bandwidth ) * 100 > $warning || ( $speed{tx} / $bandwidth ) * 100 > $warning ) {
-        $exit_status = $status{WARNING};
-        $output .= "WARNING";
-    } else {
-        $output .= "OK";
-    }
-} else {
-    if ( ( $speed{rx} > $critical ) or ( $speed{tx} > $critical ) ) {
-        $exit_status = $status{CRITICAL};
-        $output .= "CRITICAL";
-    } elsif ( ( $speed{rx} > $warning ) or ( $speed{tx} > $warning ) ) {
-        $exit_status = $status{WARNING};
-        $output .= "WARNING";
-    } else {
-        $output .= "OK";
-    }
-}
-
-$output .= " bandwidth utilization";
-$output .= sprintf( " | rx=%.0f;%2.0f;%2.0f tx=%.0f;%2.0f;%2.0f", 
-           $speed{rx}*$bitmod, ($percent)?$warning*$bandwidth/100:$warning, ($percent)?$critical*$bandwidth/100:$critical, 
-           $speed{tx}*$bitmod, ($percent)?$warning*$bandwidth/100:$warning, ($percent)?$critical*$bandwidth/100:$critical );
-
-print "$output\n";
-exit( $exit_status );
-
-
-# helper function
-sub bytes2human {
-    my $bytes = shift;
-    return 0 if !$bytes;
-
-    my @units = ( '','K','M','G','T' );
-    my $offset = 0;
-
-    while ( $bytes > 1024 ){
-        $bytes = $bytes / 1024;
-        $offset++;
-    }
-    return sprintf( "%2.0f%s", $bytes, $units[$offset] );
-}
-
-sub human2bytes {
-    my $value = shift;
-    return 0 if ( !$value || $value !~ /^(\d+)(\w)$/ );
-    my ($number, $scale) = ($1,$2);
-
-    my $bitmod = ( $scale =~ /[kmg]/ ) ? BITS : BYTES;
-    my @units = ( '','K','M','G','T' );
-    my $offset = 0;
-
-    while( $units[$offset] ne "\u$scale" && $offset <= scalar(@units) ) {
-        $number *= 1024;
-        $offset++;
-    }
-
-    return $number/$bitmod;
-}
-
-sub usage {
-    print <<EOU;
-
-    Usage: $0 -i <interface> -w <warn> -c <critical> [-p -b <bandwidth>]
-
-    -i, --interface STRING
-        Network interface name (example: eth0)
-    -w, --warning STRING
-        Warning interface speed level (K/M/G Bps, k/m/g bps)
-        If using with -p value should be in percentage (1-100)
-    -c, --critilcal STRING
-        Critical interface speed level (K/M/G Bps, k/m/g bps)
-        If using with -p value should be in percentage (1-100)
-    -p
-        Calculate warning and critical levels in percentage based on interface bandwidth
-    -b, --bandwidth STRING
-        Interface bandwidth value (K/M/G Bps, k/m/g bps)
-
-EOU
-unlink($tmpfile);
-    exit $status{UNKNOWN};
-}
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..65b9ccd
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+apt update
+apt install -y python3-venv git sysstat
+
+cd /opt || exit
+
+git -C /opt/icinga2-checks pull || git clone https://git.dp15.us/dpanzer/icinga2-checks.git /opt/icinga2-checks
+
+ln -s /opt/icinga2-checks/check_iowait.sh /usr/lib64/nagios/plugins/check_iowait
+ln -s /opt/icinga2-checks/check_bandwidth /usr/lib64/nagios/plugins/check_bandwidth
\ No newline at end of file