similar to: Access Problem after update to CentOS 7.1

On 04/04/2015 04:47 PM, Gregory P. Ennis wrote: > Everyone, > > This morning I did a manual yum update on our a mail server to 7.1 > without any incident or problems. A new kernel was installed, and I > rebooted after the update. > > When I rebooted the machine I could not gain ssh access to it from an > external ip address. I was able to ssh to this mail server

On Sat, 2015-04-04 at 16:47 -0500, Gregory P. Ennis wrote: > Everyone, > > This morning I did a manual yum update on our a mail server to 7.1 > without any incident or problems. A new kernel was installed, and I > rebooted after the update. > > When I rebooted the machine I could not gain ssh access to it from an > external ip address. I was able to ssh to this mail

On Sat, 2015-04-04 at 16:47 -0500, Gregory P. Ennis wrote: > Everyone, > > This morning I did a manual yum update on our a mail server to 7.1 > without any incident or problems. A new kernel was installed, and I > rebooted after the update. > > When I rebooted the machine I could not gain ssh access to it from an > external ip address. I was able to ssh to this mail

On 04/04/2015 04:47 PM, Gregory P. Ennis wrote: > Everyone, > > This morning I did a manual yum update on our a mail server to 7.1 > without any incident or problems. A new kernel was installed, and I > rebooted after the update. > > When I rebooted the machine I could not gain ssh access to it from an > external ip address. I was able to ssh to this mail server

On 01/12/14 18:36, Gregory P. Ennis wrote: > On Thu, 2014-11-27 at 22:04 -0600, Gregory P. Ennis wrote: >> On Thu, 2014-11-27 at 18:50 -0600, Gregory P. Ennis wrote: >>> Date: Sun, 23 Nov 2014 13:50:17 -0600 >>> >>> On Sun, 23 Nov 2014 13:07:47 -0600 >>> Gregory P. Ennis wrote: >>> >>>> I also changed the boot level to 5.

Everyone, I have a problem I have been chasing for about three weeks and only occurred after cups was updated with cups-1.6.3-22.el7. I would be interested as to whether any one else has had this problem, and would entertain suggestions as to how I can debug the problem. My Centos 5 server is a gateway as well as a cups print server that has been in place for 8 years and has continued to

I had turned off firewalld and was using iptables when I originally installed CentOS 7.0. Two days ago I upgraded my CentOS 7.0 to 7.1. Everything seemed to be fine. Today I discovered that my iptables configuration was removed with the update. Has anyone else experienced this on doing upgrade? Literally the /etc/sysconfig/iptables is gone and the /etc/sysconfig/iptables-config is the blank

Hello, I have a big problem with fail2ban and firewalld on my new system. I have a server running (CentOS 7.1) and run a Update to 7.2 on this system all is working ? BUT I install a new system with CentOS 7 1511 on this systems fail2ban don't work anymore. I have this error or more, in the firewalld 2015-12-19 08:39:55 ERROR: COMMAND_FAILED: '/sbin/iptables -w2 -t filter -I

Hello, i have a little question. My system: ip route: 0.0.0.0/1 via 10.8.0.5 dev tun0 default via 192.168.2.1 dev br0 proto static metric 425 10.8.0.1 via 10.8.0.5 dev tun0 10.8.0.5 dev tun0 proto kernel scope link src 10.8.0.6 88.198.140.127 via 192.168.2.1 dev br0 192.168.2.0/24 dev br0 proto kernel scope link src 192.168.2.101 metric 425 192.168.122.0/24 dev virbr0 proto kernel

Everyone, I would like to use our gateway linux machine to give bandwidth preference to voip udp packets. Can anyone point me to a tutorial about the use of voip and iptables? I usually prefer to use iptables instead of firewalld. iptables is more intuitive, and easier to understand. Thanks much!!! Greg Ennis

Hello List, with CentOS 7.2 it is not longer possible to run fail2ban on a Server ? I install a new CentOS 7.2 and the EPEL directory yum install fail2ban I don't change anything only I create a jail.local to enable the Filters [sshd] enabled = true .... ..... When I start afterward fail2ban systemctl status fail2ban is clean But systemctl status firewalld is broken ? firewalld.service -

Hi all... Recently a new Fail2Ban was available among some other updates for my Centos 7 system, and I just updated all. It seems that was a very BAD idea. Just noticed that Fail2Ban have generated a 6MB error log because of the update, and FirewallD a 1MB log of errors ! (not sure if any of those were really working after this) ok, I'll just run yum downgrade fail2ban I thought. Naa, no

Hi, I'm running CentOS 7 on an Internet-facing server. SELinux is in permissive mode for debugging. I've removed FirewallD and replaced it with a custom-made Iptables script. I've also installed and configured Fail2ban (fail2ban-server package) to protect the server from brute force attacks. Out of the box, Fail2ban doesn't seem to play well with SELinux. Here's what I

P? Tue, 31 Dec 2019 18:53:38 +0000 John H Nyhuis <jnyhuis at uw.edu> skrev: > Just a random stab in the dark, but CEntOS6 was iptables, and CentOS7 > is firewalld. They take different fail2ban packages. > > CentOS6 = fail2ban > CentOS7 = fail2ban-firewalld > > Are you sure you are running the correct fail2ban package for your > firewall? (I screwed this up myself

Hello , I have recently downloaded and setup Centos 7 1503 on a device and encountered a remote connection problem which I was only able to solve via removing ebtables package . After setup , I wanted go forward with IPtables instead of Firewalld , so remove firewalld and install iptables. After configuration and tests , I installed Fail2Ban ,(which brought ebtables with it ) and after reboot I

On 4/28/2020 3:17 PM, Chris Adams wrote: > - gateway sends a router solicitation and gets a router advertisement > with "stateful config" set, which tells gateway to do DHCPv6 (but > default route comes from RA) I'm not seeing any outbound IPv6 traffic from my CentOS 7 box on the WAN interface. I do see RA's emitting from the LAN interface, from radvd. Is there

Hi! I have a server running CentOS 7.7 (1908) with all current patches installed. I think this server should be a quite standard installation with no specialities On this server I have fail2ban with an apache and openvpn configuration. I'm using firewalld to manage the firewall rules. Fail2an is configured to use firewalld: [root at server ~]# ll /etc/fail2ban/jail.d/ insgesamt 12

I am being attacked by an entire subnet where the first two parts of the IP address remain identical but the last two parts vary sufficiently that it is not caught by fail2ban since the attempts do not meet the cut-off of a certain number of attempts within the given time. Has anyone created a fail2ban filter for this type of attack? As of right now, I have manually banned a range of IP addresses

Joel Freeman wrote on 10/24/2018 9:06 PM: > On a similar note, Is there any reason to use Firewalld over IPTables? > > I'm incredibly new to Linux administration, and would like to your guys' > opinions on it. > > Many thanks, > Joel. My first impression was that firewalld and NetworkManager had a more desktop oriented/plug-n-play type feel compared to traditional

On Thu, 2014-11-27 at 18:50 -0600, Gregory P. Ennis wrote: > Date: Sun, 23 Nov 2014 13:50:17 -0600 > > On Sun, 23 Nov 2014 13:07:47 -0600 > Gregory P. Ennis wrote: > > > I also changed the boot level to 5. > > Do you mean the runlevel? If so, are you sure that you changed it correctly? > > Centos 7 doesn't use runlevels set in inittab like previous