Dear All.
I have strange problem with SSH on UML (user Mode Linux).
The network is simple
[host]-------------------[uml]
I cannot :
* ssh from the uml to the host
* ssh to the um...
I have the following setup:
One computer running Slackware 9 with IPTables 1.2.7a protecting a small home network with 4 computers on it. One of these computers (192.168.10.2) is running Win...
I was creating a firewall with firewall builder, and accidentally installed a firewall that won't let me do anything. (oops...)
How do I reset iptables to allow me to get back to normal? I ...
I am new to iptables.
What I need to do is, to block any access from some ip addresses.
I know that I can use: iptables -A INPUT -s <ip> -j drop
But then, I must write one by one for ...
Hi,
I am trying to setup a spam filter gateway. We have iptables firewall running on Linux box. Our firewall is connected to the public internet and ip addresses behind firewall are publi...
Hi All,
Ok, I'm trying to secure up sendmail's relaying capability.
Here's what I want to do:
Have local users on the network be able to send email thru my email server.
Have remot...
I want to forward all port 80 to a internal server, but can't make it work. My config are as follows:
The iptables server:
eth0 : 2xx.xxx.xxx.37
eth0 : 2xx.xxx.xxx.38 (alias)
eth1 : 192...
I'm not shy to admit that I'm new to security, but I am making my best attempt at keeping my servers safe. I'm running vsftpd and I've read that passive mode should be used instead of active ...
I have a RHEL 4.6 rack mount server running NX Server 3. I am using this for some testing purposes, but I don't want to sit in the server room. I'd like to sit at my desk and remotely work on ...
i am setting up SNORT for this i need ,apache,php,mysql,and acid. on rh9.
iI am upto installing PHP and this is what happend
root@linbox php-4.3.3]# ./configure --prefix=/www/php --with-ap...
We are in the process of setting up a Dell Poweredge 2850 with Red hat Enterprise Linux 3 to be our Disaster Recovery server.
Our production data is on an IBM 7026-H80 running AIX 4.3.3.
To ...
Hi
I require my user 'www' to run the command '/sbin/service crond restart' without having to use the root password.
How do I write this in /etc/sudoers?
Thank you
tr5
Hello all, I want to block all bittorrent traffic passing through
my gateway server. Want to use only iptables not p2p patched kernel
module.
eth0 --------- Internet
eth1 --------- Local
...
I understand that the below indicates a "TCP protocol violation by a box on the other end". That does not mean hacking to my server correct? I'm suspecting that the below has something to do w...
dear, all
my server's being under heavily attacked. my server's OS: linux whitebox with iptables, apache2.0
i've configed my kernel with appropriate parameters to prenvet SYN flood as well a...
I have an Ubuntu box with 3 nics in it. 2 of them are bridged for use with Squid. The 3rd nic is on a different network. I only want to use this for SSH into the box. The problem is, all web t...
Is there an easy way in Linux os to change permission on (chmod) all my folders and files in group instead of one file or one folder each time?
Thank You
Hi,
I'm currently using RedHat 7.2 & 7.3. I use ssh to connect to the linux servers. Recently I have disabled the reverse name lookup in the DNS server and now whenever I try ssh to the lin...
How can I setup iptables rule to redirect all outbound http/https requesets to Symantec Web Security software operating on another server? I have a client with two gateways to the Internet. On...
Doing a :
./snort -d -l /var/log/snort -h 172.16.1.0/24 -c /root/snort-2.8.4.1/etc
then I open up a separate terminal window and do a tail -f /var/log/snort/alert and nothing shows up....
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Hi all,
I have a client that wants to set up an automated process to get and retrieve files from our ssh server without being prompted for passwords. So I got their ssh key and set it up. A...
Dear Experts,
My linux server is hacked by a hacker.
He replaced all my client's index pages, including sub-folders.
(It seems he can use my server to scan other's ports too, and it gener...
I have set up a mail server at work using Linux and the internet as my guide. I am completely new to Linux but managed to get everything working somehow....
Now I get my daily LogWatch ema...
I am using Linux 9.0 & squid as an Internet Gateway with two network cards eth0 (public IP) and eht1(Private IP) and Exchange2000 as an e-mail server which is on private IP. By using IPtables ...
