similar to: CentOS Firewall configuration

Hi, I'm using the generic system-config-securitylevel-tui program on a remote server to configure my firewall. So far it's been fairly decent, allowing me to open up ports and whatnot. But I want to start blocking a couple of outgoing ports on my machine. I want to lock it down so the only traffic going in our out of my machine is stuff that I specify. Is there a way to do this

Hi. I have enabled the basic firewall that includes CentOs 4.3 enabling only ssh port. In which log could I view the attempts to other ports? Have I to use iptables instead that firewall to view that? Iago. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20060426/825a4efe/attachment.html>

Hello I have set up NAT with iptables for an openvpn connection, so that the VPN server could give VPN clients access to the entire sub-net of the server. The probelm is if I start system-config-securitylevel to say disable the firewall, and then again to enable it, my iptable rules are gone ! I did run `service iptables save` before. Is there something I can do to prevent this ? Is there a

Hi, I'm using the preconfigured firewall that comes with CentOS 5. I configure it with system-config-securitylevel-tui, close all ports except SSH, and then open only the ones I need. Right now, on one of my desktops, I've installed AMSN, which requires opening a series of ports. I've configured the app to use ports 7000 to 7010 (TCP and UDP). When running

I need a decent, easy, firewall on Centos. This is for test systems, so I do not need a lot. For 'a lot', I use and Astaro firewall. I had used Firestarter once, but found out that it cannot handle routing between a public and private network. Basically saying this is impossible. Of course, if your private network is addressed per RFC 1918 (that I co-authored), I can understand

Hello CentOS, I'm curious... there seems to be a couple of default firewall rules that I'm not familiar with in the CentOS 4.0 # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD

Hello everyone, I am setting up a new system for use as a testing/demo/trial-and-error system. I have installed CentOS 4.4 on it. There is not an X-environment, so I will need to fix this from the command line (via ssh access). I am trying to do an nfs export from this box to another on my internal home network. I have figured out that it is a firewall issue on the CentOS box (I turn off the

Well FWbuilder is NOT easy. The documentation does not match the current GUI. Now the box is locked up. I will have to pull it again, hook it up to a kybd/VGA and reset iptables.... Maybe Shoreline with webmin.... Problem is I want a REAL router/firewall with little work. Both public and private nets have routable addresses. No NATing for me! I just help write the RFC ;) And all the

Hi All, I have a home business circuit and I am gearing up to host my business affairs in my place. I have Comcast and 13 static IP's. I have an extra PIII 1U, 2 9gb SCSI, 1gb RAMm dual NICS. So I am wanting to build a firewall to front end my traffic. Assign one of my statics to it and have Comcast statically route my traffic to this IP. Then when traffic comes have it decide if it

Hi list. This is my first post here. Super newbie. I will try not to ask too many questions, but searching is hard when you don't even know where to begin. Hopefully someone can point me in the right direction. I have just installed CentOS 4.2. I selected to have a firewall in the graphic installer, and I opened ports 22 and 80. Fine so far. SSH and HTTP both work. But now that

Good day everyone. Today has been "one of those..." days. So I have a feeling this is just a brain lapse here. At any rate, I am setting up a firewall/router using centos 4.4 (minimal install, yummed up to date). I have in fact enables V4 ip forwarding (by editing /etc/sysctl.conf) and rebooted the system. I use fwbuilder for my rules, and at this point have a next to nothing set of

I'm trying to NFS-mount a CentOS directory on my Fedora laptop, but I find I can only do this is I turn off the firewall on the CentOS server. If instead I go to system-config-securitylevel-tui on the server, and allow NFS4, this does not do the trick. Nor does allowing port 2049. What do I need to allow? [I should say that the CentOS server is remote, and difficult to access directly; that

hi all, Please suggest me a good firewall package for Cent OS 5.1 Server. This server is going to face to internet and will be accessed by the branch offices. Regards Gopinath M.

We have kernel support for IPv6 in Centos, but not stateful firewall support. That requires at least the 2.6.20 kernel, which means Fedora Core 6 or some other Linux distro. None of the various free Linux firewalls have IPv6 support. Supposedly FWBuilder can manage Netfilters for a Linux Kernel, but that seems to be the extent of it. More sad facts as I uncover them.....

In following up on the rsh "problem" I was having earlier, I decided to try out the suggestion Felipe sent about using system-config-securitylevel-tui to open up ports 513 and 514, but that doesn't seem to do the job, either. # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination RH-Firewall-1-INPUT all -- anywhere anywhere

Is there a CentOS equivalent to config-system-firewall in Fedora, allowing specified services to pass through? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

Hi, This is semi-OT, but is Centos-related. I'm looking for an IPTables GUI to help us with our expanding network configuration. I know there's plenty out there, but most of them seem to manage the firewall on the computer on which they run, or only handle one firewall at a time. I need one that can easily manage multiple firewalls from some sort of central location/repository, i.e.

Hi Ignacio, apology for my English... my name is George Ginis... what you mean running/accessible via firewall and system-config-securitylevel? in XP or CentOS? and what is this? the PuTTY I have in XP or in CentOS? thank for your answer... By default CentOS doesn't have ftp, telnet, nor rlogin services running/accessible via firewall. Use an ssh client such as PuTTY. And don't forget

iptables -I INPUT -s 0.0.0.0/0 -p tcp --dport 5901 -j ACCEPT I'm going strictly off memoy here so you may need to man iptables. :) hadi motamedi <motamedi24 at gmail.com> wrote: >Dear All >To open a port , I know that I need to go to "System -> Administration -> >Security Level and Firewall" -> Other ports and then I can open port-5901 as >tcp

Hello, I see manage of firewall in CentOS (called security), and seems difficult to manage, not enough powerful. I am searching a middle term between scripts of iptables to manage and Security manager of CentOS. I know FireStarter, another similar? -- Devel in Precio http://www.pas-world.com