Sponsored Content
Full Discussion: iptables: block/allow ftp
Special Forums Cybersecurity iptables: block/allow ftp Post 17619 by PxT on Monday 18th of March 2002 03:37:27 PM
Old 03-18-2002
Just a guess, but this should work (iptables experts can correct me)


Assume:
server1 IP is 192.168.0.1
server2 IP is 192.168.100.1

# Allow ftp to server 2 from 1
iptables -A INPUT -s 192.168.0.1 -d 192.168.100.1 -p tcp -m tcp --dport 21 -j ACCEPT

# Deny ftp from server 2 to server 1
iptables -A INPUT -s 192.168.100.1 -d 192.168.0.1 -p tcp -m tcp --dport 21 -j DROP
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

iptables, ftp

I have allready opened a thread about this, but my question was really weird formed, so I'm writting it here again: I have a Network with 4 FTP Servers, then a firewall, and then a Network with clients. The clients should have access to the FTP Servers, but it should not be possible to connect... (2 Replies)
Discussion started by: sTorm
2 Replies

2. Shell Programming and Scripting

FTP inside a block of code

I need help on the code below. I am getting a compile error syntax error at line 283 : `<<' unmatched Looks like it doesn't like the << on the ftp line below. If I ran the code outside of this block everything work fine, but when I put in a block of code or in a function, I got syntax error. I... (1 Reply)
Discussion started by: leemjesse
1 Replies

3. Solaris

Want to block ftp for root user

Hi Friends, I would like to block the root user for doing ftp. As I am aware that I need to put the entry for root in /etc/ftpusers.....am I right...??? But I am not able to edit the file & even more command is not working. #ls -l ftp* total 14 -rw-r--r-- 1 root sys 1249 Jun... (3 Replies)
Discussion started by: jumadhiya
3 Replies

4. UNIX for Dummies Questions & Answers

How to block an anonymous ftp user?

Could anyone provide information on how to block a specific client machine from being able to log onto anonymous ftp? (10 Replies)
Discussion started by: dennisheazle
10 Replies

5. Shell Programming and Scripting

Block incoming traffic FTP from internet using iptables

Hi everybody. I have the next scenary: eth0: WAN eth1: DMZ eth2: LAN I need to block all incoming trafic from the internet through my network LAN using iptables. I have squid but i need to do this using ipatbles. I have been listening about iptables -A FORDAWARD but I am stuck right... (0 Replies)
Discussion started by: edeamat
0 Replies

6. AIX

Block users ftp service

Hello everyone I create a file /etc/ftpusers to block users. I put the names of the users and I refresh the service inetd. My question is the user still log in by ftp.???? What I miss Thanks for your opinions. Greetings (2 Replies)
Discussion started by: lo-lp-kl
2 Replies

7. UNIX for Dummies Questions & Answers

iptables-ftp

I have set up a firewall on my centOS 5.6 box. I copied it from info I found online related to web servers. Everything seems to work fine but my ftp from my LAN. I am not able to ftp into the directories at all. I have the box set up as a test web server. Here is my iptable: I have opened ports... (7 Replies)
Discussion started by: ktb231
7 Replies

8. Red Hat

iptables ftp denies ls

Hi, Following is the output of iptables -S command -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A INPUT -s 192.168.0.5/32 -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -s 192.168.0.5/32 -p udp -m udp --dport 22 -j ACCEPT -A INPUT -s 192.168.0.0/24 -p udp -m udp --dport 20 -j... (3 Replies)
Discussion started by: shahdharmit
3 Replies

9. IP Networking

vsftp | active and passive ftp | iptables

I am using vsftp but I can't login with passive mode. I can only login with active mode. I can login with both mode when service of iptables is stop. In active mode : 20,21 must be open from server site. 1023 and over must be open at client site. In passive mode : only 21,1023 and over must be... (1 Reply)
Discussion started by: getrue
1 Replies

10. IP Networking

iptables problem with ftp

I have a pretty stock iptables script. One rule allows active ftp from an outside IP address. To troubleshoot it, I opened up ftp to all connections from the outside. When a user outside our domain connects via FTP, they are denied. If I flush the rules, the ftp takes place successfully. This... (2 Replies)
Discussion started by: bricoleur
2 Replies
tgt-setup-lun(8)					      System Manager's Manual						  tgt-setup-lun(8)

NAME
tgt-setup-lun - creates a target, adds a device to the target and defines initiators that can connect to the target SYNOPSIS
tgt-setup-lun -d device -n target_name [initiator_IP1 initiator_IP2 ...] [-h] DESCRIPTION
Starts tgtd if necessary and creates a target according to the supplied target_name. The format of the target name is as follows: iqn.2001-04.com.<hostname>-<target_name> The target name must be unique. The script then adds the requested device to the target. If specific IP addresses are defined, it adds them to the list of allowed initia- tors for that target. If no IP addresses is defined, it defines that the target accepts any initiator. EXAMPLES
Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81: tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81 and 192.168.10.82: tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 192.168.10.82 Create a target that uses /dev/sdb1 and allows connections from any initiator: tgt-setup-lun -d /dev/sdb1 -n my_target Display help: tgt-setup-lun -h AUTHOR
Written by Erez Zilber REPORTING BUGS
Report bugs to <stgt@vger.kernel.org> COPYRIGHT
Copyright (C) Voltaire Ltd. 2008. tgt-setup-lun(8)
All times are GMT -4. The time now is 11:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy