similar to: Easy way to reject all incoming packets except from certain IPs?

Displaying 20 results from an estimated 3000 matches similar to: "Easy way to reject all incoming packets except from certain IPs?"

2006 Sep 21
4
CentOs 4.X and APF firewall issues
Hi, We have 7 Dell 2850 servers with dual xeon 3 gig processors running the APF firewall version 0.9.6 http://rfxnetworks.com/apf.php They run fine for a day or two, then suddenly lock out all incoming connections, other than the backend IP, sometimes restarting the firewall resolves this, but occasionally we may have to leave it 10 mins or so before restarting where it will actually
2005 Sep 08
4
Does anyone use VMWare 4.5.2 on CentOS 4?
I'm trying to use my copy and whenever I reboot I have to reconfigure everything again using vmware-config.pl. Any idea why I might have to do this? Is there something about the way services are setup under CentOS 4 or something? Preston
2005 Oct 23
4
Anyone use a Rio Cali Sport with CentOS 4.2?
My wife does and here's the problem. It automatically mounts the flash memory of the player. But it doesn't mount the SD card slot. I used Ubuntu 5.10 recently and it mounted both of them. Both as separate USB sticks. How do I get CentOS to do the same thing? Or can it not discern that two USB flash devices are plugged in? Preston
2006 Feb 13
11
ssh attack
Hi, I get ssh connect attempts all the time, to my servers at home and at work. I've noticed lately they come from a certain ip address, hitting every 3 or 4 seconds, trying 50 or 100 different user names and passwords. And I get these sweeps from 2 or 3 ip addresses a day. I guess this is an automated attempt to guess a user/pass and break into a system. I tried to secure ssh better by
2007 May 01
3
Installed CentOS 5 today, question about an error I'm getting
So I did a fresh install today. Decided to go ahead and upgrade. Everything seems okay save for three problems. #1 - I get a message during boot saying that an Intel microcode update didn't work. Something about not being able to find /proc/microcode. #2 - I can't use the Firefox extension HTML Parser. Anyone use this. #3 - Off and on GDM crashes and I get dropped into a prompt. Any
2005 Nov 10
4
Multi-button mice and Linux?
Does anyone here use a multi-button (as in more than 2) mouse with Linux? How well supported are they? I've had to get one recently for work. I was diagnosed with CTS and I now wear braces and use a wireless Intellimouse. Works great at work with Windows, but I'm unsure how much, if any support there is for Linux. Anyone have experience with this? Preston
2005 Aug 28
5
Trying to control the torrent of spam...
Someone got ahold of my information (actually, I know who they are - t2net.net - just not how to get back at them) and now I'm getting 4 phone calls a week upwards of 20 spams a day. I'm trying to put an end to the spam at least and the built-in stuff for Evolution isn't working as well as it should I did some Googling on procmail and fetchmail and spamassassin config files and much
2005 May 07
6
New to CentOS, is this a safe bet?
I know this may be a stupid place to ask, but I have to ask. I'm looking for a new Linux distro to use and support. I've been a loyal purchaser of SuSE Linux Pro for the last 3 years. I've paid my $90 loyally, in part because I wanted money to actually go to someone working on OSS, but also because I thought it was a good bargain, to get a quality, tested distro for that cost. The
2005 May 09
3
Removing custom kernels?
Is this possible. I did my first one yesterday in order to get my iPod mini to work with the EL kernel. It worked well. Everything went smoothly, but I don't like what I named it. So I'd like to take one more shot at it. If I do, is there a way to remove the old one cleanly? Modules and everything. Also, if do recompile the kernel again, do I need fresh source, or can I just do a make
2005 May 07
2
Thanks for all the help and advice
I went with CentOS today and I couldn't be happier. I'm definitely excited to be part of this community. Now I just have to remember (after years of using the default SuSE install of Java/Ant/Tomcat/Eclipse, etc.) where the best place to put my Java apps is. Preston
2007 May 01
2
Sound problems with CentOS
Has anyone experienced this before? This happened to me even under CentOS 4.x. But basically what happens is that when I play MP3s, whatever the right speaker crackles at higher volume. And it's always that speaker and only that speaker. If I turn the balance to the other speaker I have no problems. So it feels like it might be a mixer issue. I use Alsa, of course, as that's what the
2005 Oct 12
2
Anyone use fetchmail for multiple users?
Trying to figure out how to configure it for multiple users. By default CentOS doesn't have a daemon setup if you want to do this. Preston
2005 Sep 15
2
Can someone point me in the direction of a quick postfix/fetchmail setup example?
I need to start doing some email filtering. Can someone point me in the direction of how to do this if they have a link handy? If not I'll Google anyway, but I thought I'd ask just in case. Preston
2007 May 03
2
Running SELinux necessary for the average user?
I'm wondering because it seems to be slowing my machine down considerably under CentOS 5. Especially the daemon they include to monitor SELinux and the program that attaches to it. I tried opening this earlier and it just sat there spinning. I want the knowledge that my machine is secure and safe. But I'm wondering if the price is worth it. Is it necessary for my machine to be fairly
2005 Oct 14
2
Anyone know why this wouldn't be valid mbox format?
Trying to get my wife's emails out of a proprietary format and into mbox for use on our local box. Doing some major file munging. In a test email the following doesn't work. (forgetting dates, email addresses, etc.) >From heraddress at herdomain.com Wed Oct 10 11:50:44 2005 -0700 Date: Wed, 10 Oct 2005 11:50:42 -0700 (PDT) This does work >From heraddress at herdomain.com Wed Oct
2005 Sep 15
2
Capturing audio streams with Linux?
So I got a new Pocket PC this weekend (yes, you read that right, sorry, don't like the Palms on offer currently and I can at least install software on it via Windows on VMWare). One of the main things I wanted to do with it is get Audible.com again and listen to All Things Considered from NPR on the way home like I used to. Now I find out they not only don't have an agreement with Audible
2005 Jul 26
3
Software to monitor security logs and email ISPs?
I know they have software that does this. I'm just not sure which one it is. Basically here's the scoop. I'm on a cable modem connection with Comcast. I have a firewall router and I run a firewall on CentOS as well. All the same, other computers (probably zombies or hackers) are attempting brute force attacks on a couple of ports on my computer. I've just sat and watched them for
2007 May 03
2
Grip for CentOS 5?
Does anyone know where you can find an RPM for this? I'm just trying to rip some MP3s on my upgraded box. The last of the things I can't do. Preston
2005 Nov 01
2
Installing Tomact as a service... update
So I've been trying to use this site and the daemon script here. http://www.linuxjava.net/howto/webapp/#tomcat It works so far. I mean, at least the server starts, I can get to the site, etc. So far, so good. The only problem is, for some reason when I start tomcat using root everything runs fine. When I start tomcat using this script, however, I get this.... FATAL [http-8080-Processor25]
2005 Dec 10
1
Anyone here install Java Studio Creator with CentOS 4?
I tried yesterday. During the install it yacks at trying to install the application server that comes with Java Studio Creator. Complains about lacking libstdc++ or compat-libstdc++ or something like that. Anyone see this or know what to do about it? I ask here in case there is some trick to getting a piece of software (that's obviously looking for one version of libstdc++) to see what's