diff --git a/update.motd/10-hostname-color b/update.motd/10-hostname-color new file mode 100755 index 0000000..10b9f16 --- /dev/null +++ b/update.motd/10-hostname-color @@ -0,0 +1,3 @@ +#!/bin/bash + +/usr/bin/env figlet "$(hostname)" | /usr/games/lolcat -f diff --git a/update.motd/20-sysinfo b/update.motd/20-sysinfo new file mode 100755 index 0000000..902e68b --- /dev/null +++ b/update.motd/20-sysinfo @@ -0,0 +1,29 @@ +#!/bin/bash + +# get load averages +IFS=" " read LOAD1 LOAD5 LOAD15 <<<$(cat /proc/loadavg | awk '{ print $1,$2,$3 }') +# get free memory +IFS=" " read USED AVAIL TOTAL <<<$(free -htm | grep "Mem" | awk {'print $3,$7,$2'}) +# get processes +PROCESS=`ps -eo user=|sort|uniq -c | awk '{ print $2 " " $1 }'` +PROCESS_ALL=`echo "$PROCESS"| awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'` +PROCESS_ROOT=`echo "$PROCESS"| grep root | awk {'print $2'}` +PROCESS_USER=`echo "$PROCESS"| grep -v root | awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'` +# get processors +PROCESSOR_NAME=`grep "model name" /proc/cpuinfo | cut -d ' ' -f3- | awk {'print $0'} | head -1` +PROCESSOR_COUNT=`grep -ioP 'processor\t:' /proc/cpuinfo | wc -l` + +W="\e[0;39m" +G="\e[1;32m" + +echo -e " +${W}system info: +$W Distro......: $W`cat /etc/*release | grep "PRETTY_NAME" | cut -d "=" -f 2- | sed 's/"//g'` +$W Kernel......: $W`uname -sr` + +$W Uptime......: $W`uptime -p` +$W Load........: $G$LOAD1$W (1m), $G$LOAD5$W (5m), $G$LOAD15$W (15m) +$W Processes...:$W $G$PROCESS_ROOT$W (root), $G$PROCESS_USER$W (user), $G$PROCESS_ALL$W (total) + +$W CPU.........: $W$PROCESSOR_NAME ($G$PROCESSOR_COUNT$W vCPU) +$W Memory......: $G$USED$W used, $G$AVAIL$W avail, $G$TOTAL$W total$W" diff --git a/update.motd/20-uptime b/update.motd/20-uptime new file mode 100755 index 0000000..20c52d3 --- /dev/null +++ b/update.motd/20-uptime @@ -0,0 +1,4 @@ +#!/bin/bash + +printf "\n" +uptime -p diff --git a/update.motd/35-diskspace b/update.motd/35-diskspace new file mode 100755 index 0000000..c4215c9 --- /dev/null +++ b/update.motd/35-diskspace @@ -0,0 +1,41 @@ +#!/bin/bash + +# config +max_usage=90 +bar_width=50 +# colors +white="\e[39m" +green="\e[1;32m" +red="\e[1;31m" +dim="\e[2m" +undim="\e[0m" + +# disk usage: ignore zfs, squashfs & tmpfs +mapfile -t dfs < <(df -H -x zfs -x squashfs -x tmpfs -x devtmpfs -x overlay --output=target,pcent,size | tail -n+2) +printf "\ndisk usage:\n" + +for line in "${dfs[@]}"; do + # get disk usage + usage=$(echo "$line" | awk '{print $2}' | sed 's/%//') + used_width=$((($usage*$bar_width)/100)) + # color is green if usage < max_usage, else red + if [ "${usage}" -ge "${max_usage}" ]; then + color=$red + else + color=$green + fi + # print green/red bar until used_width + bar="[${color}" + for ((i=0; i<$used_width; i++)); do + bar+="=" + done + # print dimmmed bar until end + bar+="${white}${dim}" + for ((i=$used_width; i<$bar_width; i++)); do + bar+="=" + done + bar+="${undim}]" + # print usage line & bar + echo "${line}" | awk '{ printf("%-31s%+3s used out of %+4s\n", $1, $2, $3); }' | sed -e 's/^/ /' + echo -e "${bar}" | sed -e 's/^/ /' +done diff --git a/update.motd/40-services b/update.motd/40-services new file mode 100755 index 0000000..aa406ba --- /dev/null +++ b/update.motd/40-services @@ -0,0 +1,37 @@ +#!/bin/bash + +# set column width +COLUMNS=3 +# colors +green="\e[1;32m" +red="\e[1;31m" +undim="\e[0m" + +services=("zabbix-server" "zabbix-agent2" "apache2" "mariadb" "fail2ban" "chrony" "sendmail") +# sort services +IFS=$'\n' services=($(sort <<<"${services[*]}")) +unset IFS + +service_status=() +# get status of all services +for service in "${services[@]}"; do + service_status+=($(systemctl is-active "$service")) +done + +out="" +for i in ${!services[@]}; do + # color green if service is active, else red + if [[ "${service_status[$i]}" == "active" ]]; then + out+="${services[$i]}:,${green}${service_status[$i]}${undim}," + else + out+="${services[$i]}:,${red}${service_status[$i]}${undim}," + fi + # insert \n every $COLUMNS column + if [ $((($i+1) % $COLUMNS)) -eq 0 ]; then + out+="\n" + fi +done +out+="\n" + +printf "\nservices:\n" +printf "$out" | column -ts $',' | sed -e 's/^/ /' diff --git a/update.motd/50-fail2ban b/update.motd/50-fail2ban new file mode 100755 index 0000000..71093aa --- /dev/null +++ b/update.motd/50-fail2ban @@ -0,0 +1,21 @@ +#!/bin/bash + +logfile='/var/log/fail2ban.log*' +mapfile -t lines < <(grep -hioP '(\[[a-z-]+\]) ?(?:restore)? (ban|unban)' $logfile | sort | uniq -c) +jails=($(printf -- '%s\n' "${lines[@]}" | grep -oP '\[\K[^\]]+' | sort | uniq)) + +out="" +for jail in ${jails[@]}; do + bans=$(printf -- '%s\n' "${lines[@]}" | grep -iP "[[:digit:]]+ \[$jail\] ban" | awk '{print $1}') + restores=$(printf -- '%s\n' "${lines[@]}" | grep -iP "[[:digit:]]+ \[$jail\] restore ban" | awk '{print $1}') + unbans=$(printf -- '%s\n' "${lines[@]}" | grep -iP "[[:digit:]]+ \[$jail\] unban" | awk '{print $1}') + bans=${bans:-0} # default value + restores=${restores:-0} # default value + unbans=${unbans:-0} # default value + bans=$(($bans+$restores)) + diff=$(($bans-$unbans)) + out+=$(printf "$jail, %+3s bans, %+3s unbans, %+3s active" $bans $unbans $diff)"\n" +done + +printf "\nfail2ban status (monthly):\n" +printf "$out" | column -ts $',' | sed -e 's/^/ /' diff --git a/update.motd/50-fail2ban-status b/update.motd/50-fail2ban-status new file mode 100755 index 0000000..25cbc06 --- /dev/null +++ b/update.motd/50-fail2ban-status @@ -0,0 +1,19 @@ +#!/bin/bash + +# fail2ban-client status to get all jails, takes about ~70ms +jails=($(fail2ban-client status | grep "Jail list:" | sed "s/ //g" | awk '{split($2,a,",");for(i in a) print a[i]}')) + +out="jail,failed,total,banned,total\n" + +for jail in ${jails[@]}; do + # slow because fail2ban-client has to be called for every jail (~70ms per jail) + status=$(fail2ban-client status ${jail}) + failed=$(echo "$status" | grep -ioP '(?<=Currently failed:\t)[[:digit:]]+') + totalfailed=$(echo "$status" | grep -ioP '(?<=Total failed:\t)[[:digit:]]+') + banned=$(echo "$status" | grep -ioP '(?<=Currently banned:\t)[[:digit:]]+') + totalbanned=$(echo "$status" | grep -ioP '(?<=Total banned:\t)[[:digit:]]+') + out+="$jail,$failed,$totalfailed,$banned,$totalbanned\n" +done + +printf "\nfail2ban status:\n" +printf $out | column -ts $',' | sed -e 's/^/ /' diff --git a/update.motd/60-upgrades b/update.motd/60-upgrades new file mode 100755 index 0000000..e01cee8 --- /dev/null +++ b/update.motd/60-upgrades @@ -0,0 +1,12 @@ +#!/bin/sh +printf "\n" +number=`apt list --upgradable 2> /dev/null | grep 'upgradable' | wc -l` +printf "Available updates : %s\n" $number + +if [ $number -gt 0 ]; then + printf "\033[1;31mSystem needs %s updates\033[0m\n" $number + apt list --upgradable 2> /dev/null | grep 'upgradable' +else + printf "\033[1;32mSystem is uptodate\033[0m\n" +fi +echo