Read IP address from text file to IPTABLES

Question

Currently I am using ufw to manually add the ip rules by typing

sudo ufw allow from (my ip address)

I have retrieve the ip address of my client ip by doing some script calling from my database and save it to a .txt file.

this is the value i get

  ipaddress
 10.1.100.90
 10.1.100.91

Is it possible to read the ip address in the .txt file and save it to the rule instead of typing manually?

You are not supposed to edit question requirements after posting it once, and answers have been provided — Inian, Feb 02 '17 at 09:30

score 0 · Answer 1 · answered Feb 02 '17 at 08:23

0

You can write a simple script in python that can read text file containing IP address list and then execute Linux command one by one on each IP address.A simple guide Python Execute Unix / Linux Command Examples

answered Feb 02 '17 at 08:23

Kashif Sohail EF

19
1

I need some examples. I have never used python before and Iam new to linux the command. – Fouzy Feb 02 '17 at 08:28
Please refer to the question. http://stackoverflow.com/questions/14676265/how-to-read-text-file-into-a-list-or-array-with-python and then https://www.cyberciti.biz/faq/python-execute-unix-linux-command-examples/ – Kashif Sohail EF Feb 02 '17 at 08:30

Inian · Accepted Answer · 2017-02-02T08:52:16.037

0

You could use a bash script like something below

#!/bin/bash

{ 
    # Skip the header line containing 'name  ipaddress'
    read skipLine;                     

    # Read the rest of the lines till end of the file
    while IFS= read -r name IP
    do
        # All the IP's are stored in the variable $IP. Use it
        # however you want
        printf  "%s %s\n" "$name" "$IP"

        # To print only the IPs, do
        # printf  "%s\n" "$IP"

    done
} <IPFile 

# IPFile - Input file name containing IP addresses. Replace it with your file

edited Feb 02 '17 at 08:52

answered Feb 02 '17 at 08:28

Inian

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what is the ` – Fouzy Feb 02 '17 at 08:34
@Fouzy: That is the file, you have the IP's stored in. Change that to actual file name you have – Inian Feb 02 '17 at 08:35
@Fouzy: Exactly. You need to use the `$IP` depending upon your need. – Inian Feb 02 '17 at 08:39
how do i ignore the "name" column? – Fouzy Feb 02 '17 at 08:42
@Fouzy: Why should you? Just access those contents inside the `$IP` variable – Inian Feb 02 '17 at 08:44
`printf "%s %s\n" "$name" "$IP"` I try to remove the $NAME variable and nothing is show – Fouzy Feb 02 '17 at 08:50
@Fouzy: Refer my update in the answer containing only prinint IPs, just remove the `#` at beginning and remove other print statements – Inian Feb 02 '17 at 08:52
I have implement the code, still the value does not show. – Fouzy Feb 02 '17 at 09:00
@Fouzy: What do you expect to do when you don't show what you have attempted? Update your attempt in question. – Inian Feb 02 '17 at 09:03
Problem solved thanks. What I did was just removing the username. – Fouzy Feb 02 '17 at 09:09

Read IP address from text file to IPTABLES

2 Answers2