IITM Netaccess Auto Login Script

A simple shell script to automatically log in and approve sessions on the IIT Madras Netaccess portal.
Ideal for users who want uninterrupted network access without manually logging in every day.

---

🚀 Features

• Automatically logs in to netaccess.iitm.ac.in
• Approves sessions for 1 hour or 1 day
• Maintains session cookies for stability
• Logs all activity to a specified log file
• Supports automation via crontab or /etc/rc.local

---

⚙️ Configuration

Edit the script and update the configuration section at the top:

# --- Config ---
USER="roll_no"           # Your Roll Number / Username
PASS="password"          # Your Netaccess password
IP="x.x.x.x"             # Your device’s IP address
ROOM="optional"          # Room number (optional)
DURATION="2"             # 1 = 1 hour, 2 = 1 day
COOKIE_JAR="/root/netaccess_cookies.txt"
LOG="/tmp/netaccess.log"

Tip: If you get an error saying could not find IP of netaccess, add this entry to your /etc/hosts file: {ip} netaccess.iitm.ac.in You can find the {ip} by running: ping netaccess.iitm.ac.in

🖥️ Usage

Manual Run

sudo sh /root/netaccess.sh

Automate with Crontab

Run every day at 9 PM:

crontab -e

and add:

0 21 * * * /root/netaccess.sh >/dev/null 2>&1

Run on Boot (Recommended)

Since @reboot is not enabled on OpenWRT, use /etc/rc.local:

sleep 10
sh /root/netaccess.sh >/dev/null 2>&1

📜 Log File

All logs are stored at:

/tmp/netaccess.log

You can check it anytime using:

cat /tmp/netaccess.log

Requires curl to be installed:

opkg update
opkg install curl