FIRO Masternodes monitor

Posted on by

The following script, creates an HTML file, to be presented by any webserver

#!/bin/bash

# --- Configuration ---
OUTPUT_FILE="/path_to_output_file/firo_nodes.html"

# Define your nodes in the format: "Alias:IP_Address:SSH_User"

NODES=(
"HomeSRV:79.177.xx.xx:user"
"Big1:xxx.61.xxx.175:user"
"Big2:yyy.53.yyy.98:user"
)

FIRO_CLI="/usr/local/bin/firo-cli"
# ---------------------

DATE=$(date "+%Y-%m-%d %H:%M:%S")
COUNTER=1 # Initialize serial number counter

# 1. Generate the HTML Header and CSS
cat <<EOF > $OUTPUT_FILE
<!DOCTYPE html>
<html>
<head>
<title>FIRO Masternode Monitor</title>
<style>
body { font-family: 'Segoe UI', Arial, sans-serif; background-color: #0d1117; color: #c9d1d9; margin: 40px; }
h2 { color: #ffffff; border-bottom: 2px solid #d11e4f; padding-bottom: 10px; }
.timestamp { font-size: 0.85em; color: #8b949e; margin-bottom: 20px; }
table { width: 100%; border-collapse: collapse; background: #161b22; border-radius: 8px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
th, td { padding: 12px 15px; border: 1px solid #30363d; text-align: left; }
th { background-color: #d11e4f; color: white; text-transform: uppercase; font-size: 0.85em; letter-spacing: 1px; }
.center { text-align: center; width: 30px; color: #8b949e; }
.online { color: #3fb950; font-weight: bold; }
.offline { color: #f85149; font-weight: bold; }
.warning { color: #d29922; font-weight: bold; }
.version-text { font-family: monospace; color: #58a6ff; }
tr:hover { background-color: #21262d; }
</style>
</head>
<body>
<h2>FIRO Masternode Fleet Status</h2>
<p class="timestamp">Last Sync: $DATE</p>
<table>
<tr>
<th class="center">#</th>
<th>Node Alias</th>
<th>IP Address</th>
<th>Status</th>
<th>Version</th>
<th>Peers</th>
<th>Height</th>
</tr>
EOF

# 2. Loop through nodes
for NODE_INFO in "${NODES[@]}"; do
IFS=':' read -r NAME IP USER <<< "$NODE_INFO"

# Execute remote commands
REMOTE_DATA=$(ssh -o ConnectTimeout=5 -p 8122 -o StrictHostKeyChecking=no ${USER}@${IP} \
"$FIRO_CLI evoznode status && $FIRO_CLI getnetworkinfo && $FIRO_CLI getblockcount" 2>/dev/null)

if [ -z "$REMOTE_DATA" ]; then
STATUS_HTML="<span class='offline'>OFFLINE</span>"
VERSION_HTML="---"
CONN_HTML="0"
BLOCK_HEIGHT="N/A"
else
# Parse the multi-JSON output
STATE=$(echo "$REMOTE_DATA" | jq -s -r '.[0].state')
VERSION=$(echo "$REMOTE_DATA" | jq -s -r '.[1].version')
SUBVER=$(echo "$REMOTE_DATA" | jq -s -r '.[1].subversion' | tr -d '/')
CONN_COUNT=$(echo "$REMOTE_DATA" | jq -s -r '.[1].connections')
BLOCK_HEIGHT=$(echo "$REMOTE_DATA" | jq -s -r '.[2]')

# Logic: Status Color
if [[ "$STATE" == "READY" || "$STATE" == "ENABLED" ]]; then
STATUS_HTML="<span class='online'>$STATE</span>"
else
STATUS_HTML="<span class='warning'>$STATE</span>"
fi

# Logic: Connection Warning
if [ "$CONN_COUNT" -lt 8 ]; then
CONN_HTML="<span class='warning'>$CONN_COUNT</span>"
else
CONN_HTML="<span class='online'>$CONN_COUNT</span>"
fi

VERSION_HTML="<span class='version-text'>$SUBVER ($VERSION)</span>"
fi

# Append row
cat <<EOF >> $OUTPUT_FILE
<tr>
<td class="center">$COUNTER</td>
<td>$NAME</td>
<td>$IP</td>
<td>$STATUS_HTML</td>
<td>$VERSION_HTML</td>
<td>$CONN_HTML</td>
<td>$BLOCK_HEIGHT</td>
</tr>
EOF

((COUNTER++)) # Increment serial number
done

# 3. Close HTML
echo "</table></body></html>" >> $OUTPUT_FILE

Rocky Linux adjustments

Posted on by

 

dnf update -y
dnf install epel-release -y
dnf install htop -y
sudo dnf autoremove
systemctl stop kdump
systemctl disable kdump
vi /etc/default/grub (=no)
grub2-mkconfig --update-bls-cmdline -o /boot/grub2/grub.cfg
sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
ls -lh /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo cp /etc/fstab /etc/fstab.bak
echo "/swapfile none swap sw 0 0" | sudo tee -a /etc/fstab


sudo firewall-cmd --permanent --zone=public --add-port=8168/tcp
sudo firewall-cmd --permanent --zone=public --add-port=8122/tcp
sudo firewall-cmd --permanent --zone=public --add-port=22/tcp

sudo firewall-cmd --reload
sudo firewall-cmd --list-all
sudo systemctl enable --now firewalld
sudo systemctl status firewalld
sudo dnf install fail2ban fail2ban-firewalld -y
sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
sudo vi jail.local 
sudo systemctl start fail2ban
sudo systemctl enable fail2ban

Debian/Ubuntu adjustments

Posted on by
Reply 
sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
ls -lh /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo cp /etc/fstab /etc/fstab.bak
echo "/swapfile none swap sw 0 0" | sudo tee -a /etc/fstab
apt-get update
apt-get upgrade
sudo apt install sudo ufw htop fail2ban
adduser myuser
usermod -aG sudo myuser
ufw reset
ufw limit 22/tcp
ufw limit 8122/tcp
ufw allow 8168/tcp
ufw enable
sudo mkdir /var/run/fail2ban
sudo cp /etc/fail2ban/fail2ban.conf /etc/fail2ban/fail2ban.local
sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
sudo systemctl restart fail2ban
sudo fail2ban-client status
sudo systemctl disable multipathd
sudo systemctl disable udisks2
sudo apt-get remove --purge udisks2 packagekit snapd fwupd polkitd upower
sudo apt autoremove

for ubuntu 24 – if install of fail2ban fails (ubuntu 24.04) – the fix is here: https://discuss.frappe.io/t/fail2ban-fails-on-ubuntu-24-04-lts/127658

EA6700 adjustments

Posted on by
Reply

trying to recover a non-functional LINKSYS EA6700:

    • 32k nvram bug and
    • default linksys firmware
    • overheating

this mean CFE replacement and USB bug fix

relevant links which i used:

http://www.linksysinfo.org/index.php?threads/xvortex-or-advancedtomato-on-ea6900-v1-v1-1-without-32k-bug-renew.74084/

http://www.linksysinfo.org/index.php?threads/asuswrt-merlin-build-384-5-or-later-on-linksys-ea6900-or-ea6700.74209/

HP-UX uid change

Posted on by
Reply

following is a procedure to make 2 SAP SIDadm users who share

the same UNIX UID, live together on the same app server,

by changing one of the user’s UID (including the files)

# first change in /etc/passwd

usermod -u newUID loginname

# now go recursively and change the files accordingly

find / -user oldUID -exec chown newUID {} \;

PERL search and replace

Posted on by
Reply

a simple script i made to replace multiple appearance of a word in a raw or multiple raws, output to file.new

#!/usr/bin/perl

if ($#ARGV != 2) {

  print “this programs output is FILENAME.new\n”;

  print “usage: search_Replace.pl

     BEFORE AFTER FILENAME\n”;

  exit;

}

$newfile_name = “$ARGV[2].new”;

print “Before : “,$ARGV[0],”\n”;

print “After  : “,$ARGV[1],”\n”;

print “Opening … “;

open (OLDF, $ARGV[2]) ||

   die (“Could not open file. $!”);

open (NEWF, “>$newfile_name”) ||

   die (“Could not create output file. $!”);

print “IN/OUT pipes are open.\n”;

while ($text = ){

    $text =~ s/$ARGV[0]/$ARGV[1]/g;

    print NEWF “$text”;

    }

close (OLDF);

close (NEWF);

ESX image copy

Posted on by
Reply

as ESX v3 don’t support copy of vmware machines by web interface

(no VC) i have written a script for migrating a vmdk disk from existing Machine to a new one.

#!/bin/sh

SRC=$1

TRG=$2

/usr/bin/clear

if [ $# -ne 2 ]

then

echo “COPY Virtual Machine Utility”

echo “USAGE : cp_IMAGE SourceDIR DestinationDIR”

echo “—————————————–“

exit

fi

echo “COPY Virtual Machine Utility”

echo “—————————————–“

sleep 1

echo “Source Directory : ” = $SRC

echo “Target Directory : ” = $TRG

echo “—————————————–“

sleep 1

if [ -e $SRC/$SRC.vmdk ]

then

echo “Source Virtual Machine exists !”

sleep 1

else

echo “Source Virtual Machine – not Exists !”

echo “fix source Virtual Machine name”

exit

fi

sleep 1

if [ -e $TRG/$TRG.vmdk ]

then

echo “Target Virtual Machine exists !”

sleep 1

else

   echo “Target Virtual Machine – not Exists !”

   echo “Create Destination Virtual Machine”

   exit

fi

if [ $SRC = $TRG ]

then

   echo “Cannot copy VM to itself !”

   echo “bye”

   exit

fi

echo “Going to remove {” $TRG “} Disks”

echo “Are you Sure ? (yes/no)”

read ANswer

case “$ANswer” in

        “yes” ) /bin/rm $TRG/*.vmdk;

                echo “Target Disk Removed”;

                sleep 2;

        ;;

        “no” ) echo “bye”;

               exit;

        ;;

        * ) echo “not a valid option”;

            echo “bye”;

            exit;

esac

/usr/sbin/vmkfstools -i $SRC/$SRC.vmdk $TRG/$TRG.vmdk

echo “—————————————–“

echo “Done.”

Automated Login example

Posted on by
Reply

this is a small script for automated login,

used with our HP-UX systems

cabe used for regular maintenance or something…

#!/bin/sh

#

#

server=x.x.x.x

(

   sleep 2;

   echo “username”;

   sleep 2;

   echo “password”;

   sleep 2;

   echo “do some manipulations in the session”;

   sleep 3;

   echo “exit”;

) | telnet $server

Busybox notes

Posted on by
Reply

Some notes from my busybox implementation:

    • for fortran support –enable-languages=f77 in gcc.
    • after compilation make the soft link : ln -s /path-to-g77 /bin/g77
    • inittab :: wait:-/bin/sh for automated login
    • no Correct Hostname value in this file, so manualy do /bin/hostname ‘the_name’
    • no Snapshot use in buildroot compilation – uclibc,busybox.
    • bash :: echo -e ‘\E[num1;num2m{text}’ – for:back :: 31 red – 32 green – 36 cyan – 37 white – 40 black
    • changes in packages settings for buildroot are done in package/…
    • busybox :: enable_renice

KERNEL :

    • Firestarter :: USB::Usb Mass storage ;
    • SCSI::Scsi Disk support,num of disks 40 ;
    • File Systems::dos fat fs,ms dos fs,vfat,romfs ;
    • Partition types::Advanced Partition, PC Bios ;
    • Block Devices::RAM Disk Support,initrd

ENV :

    • alias ls=’ls -l –color’