Re: [CentOS] Disappearing Network Manager config scripts

2014-04-27 Thread Marcelo Ricardo Leitner
Em 27-04-2014 01:33, Evan Rowley escreveu: Is anyone frustrated by Network Manager? I wish CentOS just used the basic configuration files like the ones on BSD-style OSes. Those are so simple in comparison. Each time I reboot, it seems like the configuration file I create for Network Manager

Re: [CentOS] Samba problem

2014-05-12 Thread Marcelo Ricardo Leitner
Em 12-05-2014 18:33, Joseph Hesse escreveu: Hello, My only hard drive failed on a private server so I had to replace it and reinstall Centos 6.5 and Samba. My smb.conf file is OK according to testparm. I configured smb and nmb, with chkconfig, to start when the system boots. After the

Re: [CentOS] traffic distribution not happening in centos 6.5

2014-05-27 Thread Marcelo Ricardo Leitner
Em 25-05-2014 07:35, Varun Sharma escreveu: Hi, I am experimenting with libnetfilter_queue. libnetfilter_queue is a userspace library providing an API to packets that have been queued by the kernel packet filter. I am using sample code(nfqnl_test.c) available on netfilter.org. I have

Re: [CentOS] Tracking Open Ports

2014-05-30 Thread Marcelo Ricardo Leitner
Em 30-05-2014 13:12, Eric Falbe escreveu: On 05/30, Les Mikesell wrote: On Fri, May 30, 2014 at 10:14 AM, Eric Falbe ericf...@gmail.com wrote: Hi All, I was wondering if anyone knew of a way to notify or log when a specific remote port is openened? I have an old LDAP server that I am

Re: [CentOS] CentOS 6 - Ethernet Bond Errors, 1 per frame

2014-06-23 Thread Marcelo Ricardo Leitner
Em 17-06-2014 19:54, Nick Niemeyer escreveu: # modinfo ixgbe filename: /lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/net/ixgbe/ixgbe.ko version:3.15.1-k license:GPL description:Intel(R) 10 Gigabit PCI Express Network Driver author: Intel Corporation,

Re: [CentOS] NetworkManager

2014-08-25 Thread Marcelo Ricardo Leitner
Em 23-08-2014 19:30, Steve Clark escreveu: On 08/22/2014 07:42 PM, Digimer wrote: On 22/08/14 07:07 PM, Les Mikesell wrote: On Fri, Aug 22, 2014 at 5:46 PM, Digimer li...@alteeve.ca wrote: To continue your analogy, should car companies have stopped changing after the 20s? I mean, the cars

Re: [CentOS] Ifconfig ipv6:permission denied.

2014-09-10 Thread Marcelo Ricardo Leitner
Em 07-09-2014 05:24, dE escreveu: Hi! I installed CentOS 7 today, it's a minimal install, so it didn't have ifconfig command. So I installed net-tools, however I can't add ipv6 address to it. # ifconfig enp0s3 add fc00::1002/124 SIOCSIFADDR: Permission denied. Yes, I'm running as root.

Re: [CentOS] Ifconfig ipv6:permission denied.

2014-09-17 Thread Marcelo Ricardo Leitner
Em 07-09-2014 05:24, dE escreveu: Hi! I installed CentOS 7 today, it's a minimal install, so it didn't have ifconfig command. So I installed net-tools, however I can't add ipv6 address to it. # ifconfig enp0s3 add fc00::1002/124 SIOCSIFADDR: Permission denied. Yes, I'm running as root.

Re: [CentOS] Ifconfig ipv6:permission denied.

2014-09-19 Thread Marcelo Ricardo Leitner
On 18-09-2014 13:57, James Hogarth wrote: On 18 Sep 2014 09:07, dE de.tec...@gmail.com wrote: On 09/17/14 21:03, Marcelo Ricardo Leitner wrote: One more test. Please check sysctl -a | grep disable_ipv6 output And if it's =1, set it to 0. When NetworkManager is running, it may disable ipv6

Re: [CentOS] lost packets - Bond

2014-09-19 Thread Marcelo Ricardo Leitner
On 17-09-2014 13:28, Eduardo Augusto Pinto wrote: Guys, good afternoon I'm using in my bond interfaces as active backup, in theory, should assume an interface (or work) only when another interface is down. But I'm just lost packets on the interface that is not being used and is generating

Re: [CentOS] Is it safe to go from CentOS6.5 to CentOS 7 at this time

2014-09-30 Thread Marcelo Ricardo Leitner
On 29-09-2014 12:46, m.r...@5-cent.us wrote: I feel that I'd stay with 6.x unless there's a must-have feature. Right now, I'm playing with stuff on those servers - for one, NetworkMangler is *extremely* noisy, and trying to find *full* examples of its configuration file... I've only found *tiny*

Re: [CentOS] Systemd Adding Its Own Console To Linux Systems

2014-10-08 Thread Marcelo Ricardo Leitner
On 08-10-2014 14:36, Les Mikesell wrote: On Wed, Oct 8, 2014 at 12:22 PM, Robert Arkiletian rob...@gmail.com wrote: Just a heads up to those who haven't seen this yet. The main author of systemd publicly wrote about being basically persecuted.

Re: [CentOS] Systemd Adding Its Own Console To Linux Systems

2014-10-08 Thread Marcelo Ricardo Leitner
On 08-10-2014 15:18, m.r...@5-cent.us wrote: Marcelo Ricardo Leitner wrote: On 08-10-2014 14:36, Les Mikesell wrote: On Wed, Oct 8, 2014 at 12:22 PM, Robert Arkiletian rob...@gmail.com wrote: Just a heads up to those who haven't seen this yet. The main author of systemd publicly wrote about

Re: [CentOS] Systemd Adding Its Own Console To Linux Systems

2014-10-08 Thread Marcelo Ricardo Leitner
On 08-10-2014 15:25, Les Mikesell wrote: On Wed, Oct 8, 2014 at 1:11 PM, Marcelo Ricardo Leitner marcelo.leit...@gmail.com wrote: https://plus.google.com/u/0/+LennartPoetteringTheOneAndOnly/posts/J2TZrTvu7vd But oddly, he didn't even mention that there would be a real simple solution

Re: [CentOS] Systemd Adding Its Own Console To Linux Systems

2014-10-11 Thread Marcelo Ricardo Leitner
On 09-10-2014 14:13, Les Mikesell wrote: On Thu, Oct 9, 2014 at 11:51 AM, Steve Clark scl...@netwolves.com wrote: What exactly does that mean - multi seat environments? http://www.freedesktop.org/wiki/Software/systemd/multiseat/ Ok I read the information. So as I understand it you are

Re: [CentOS] Systemd Adding Its Own Console To Linux Systems

2014-10-14 Thread Marcelo Ricardo Leitner
On 13-10-2014 16:18, Les Mikesell wrote: On Mon, Oct 13, 2014 at 2:03 PM, Valeri Galtsev galt...@kicp.uchicago.edu wrote: Being able to grab your existing desktop remotely with all open windows and long-running programs intact is a big plus, though - and you get that for free with NX or

Re: [CentOS] Loss of Ethernet adaptor

2014-10-21 Thread Marcelo Ricardo Leitner
On 16-10-2014 13:47, Akemi Yagi wrote: On Wed, Oct 15, 2014 at 8:41 AM, James B. Byrne byrn...@harte-lyne.ca wrote: This is a return to an issue I first raised back in June. We had a similar occurrence in September while I was away and so I am revisiting the entire matter. Steve Clark on 6 Jun

Re: [CentOS] C7 : Firewalld

2014-10-25 Thread Marcelo Ricardo Leitner
On 25-10-2014 09:40, Timothy Murphy wrote: Vijay Rajah wrote: You can still use iptables with Centos7, if you want... (AFAIK both firewalld iptables use the same kernel functions) Yes.. both are just frontends for iptables with profile presets, no more than that. As a matter of

Re: [CentOS] network copy performance is poor (rsync) - debugging suggestions?

2015-01-29 Thread Marcelo Ricardo Leitner
On 28-01-2015 21:39, Gordon Messmer wrote: On 01/23/2015 01:44 AM, Götz Reinicke - IT Koordinator wrote: I do have two centos 6.6 servers. With a performance optimized rsync I get an speed of 15 - 20 MB/s That *is* pretty slow for sustained writes. Does the same rate hold true for individual

Re: [CentOS] C6 server responding extremely slow on ssh interactive

2015-01-28 Thread Marcelo Ricardo Leitner
On 28-01-2015 11:15, Patrick Bervoets wrote: I have a C6 server acting as a kvm-host. When connecting with ssh the console is extremely slow and hangs for minutes at a time. Connecting to this server is not the problem. If I use: ssh root@host whatever I got immediate response even when

Re: [CentOS] Network throughput testing software available for CentOS/Linux

2015-03-12 Thread Marcelo Ricardo Leitner
On 12-03-2015 17:39, Digimer wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/03/15 04:29 PM, Gilbert Sebenste wrote: Hello everyone, A network engineer buddy of mine brought up for discussion with me that he'd like to do some throughput testing, but he's new to Linux/RedHat. Is

Re: [CentOS] Kernel panic, CentOS 7.1503 fully updated, with executing gkrellm.

2015-04-02 Thread Marcelo Ricardo Leitner
On 02-04-2015 17:05, Lamar Owen wrote: On 04/02/2015 10:33 AM, Lamar Owen wrote: That's why I still hope it's local to my machine. But now to try to reproduce on other hardware. (for reference, hardware on which I saw the bug is a Dell Precision M6500 with a Core i7-740QM and an AMD/ATI

Re: [CentOS] Kernel panic, CentOS 7.1503 fully updated, with executing gkrellm.

2015-04-02 Thread Marcelo Ricardo Leitner
On 02-04-2015 02:04, Lamar Owen wrote: Just a heads up, since I know gkrellm is in EPEL and not in the main CentOS repos. However, something fairly fundamental has changed, as prior to updating, gkrellm worked fine, but now every time I execute gkrellm the kernel panics. I'm going to triage on

Re: [CentOS] Probs with Routing (CentOS7 , KVM)

2015-04-23 Thread Marcelo Ricardo Leitner
Hi, On 23-04-2015 08:50, andreas.resc...@mahle.com wrote: Hi there, I've installed a new KVM-Server. The routing in all instances are only working after arp -s ip_of_router mac_of_router Server: CentOS7, KVM Clients: CentOS6 and Fedora 21 What going wrong? Your report is not very clear. Is

Re: [CentOS] Centos 7 Network Question

2015-05-11 Thread Marcelo Ricardo Leitner
On 11-05-2015 00:57, david wrote: I have a question about the network and Centos 7 I am experimenting with two C7 installations: - On relatively new hardware, configured with fixed IP address in IPV4 only - on top of Windows, using VMWare, sharing my windows connection via Vmware's bridge with

Re: [CentOS] NFS performance on CentOS 7

2015-05-11 Thread Marcelo Ricardo Leitner
On 09-05-2015 15:34, Michael Eager wrote: I am setting up a file server with CentOS 7. I'm seeing performance which is considerably slower than a similar server running CentOS 6.6. A 3Gb directory can be copied to/from the CentOS 6.6 server in about 50 seconds. The same directory takes about

Re: [CentOS] EBtables Problem

2015-04-11 Thread Marcelo Ricardo Leitner
Hi, On 11-04-2015 06:00, Mehmet Allar wrote: 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 ,

Re: [CentOS] ksoftirqd / centos7

2015-04-18 Thread Marcelo Ricardo Leitner
Hi, On 14-04-2015 13:04, Johan Kooijman wrote: Hi, Today I migrated a server form C6 to C7. The machine is dedicated for a couple of redis daemons. given the traffic etc, we see cpu0 being 100% in use immediately. No problem, had the same thing on the C6 server. So I pinned certain

Re: [CentOS] tc seems to have no effect on the NIC's

2015-04-01 Thread Marcelo Ricardo Leitner
On 01-04-2015 13:16, Boris Epstein wrote: Hello all, We have installed this network testing environment: https://github.com/facebook/augmented-traffic-control which seems pretty nice overall. It allows you to artificially degrade your network performance by issuing tc commands to directly

Re: [CentOS] Shorewall and the latest kernel problem

2015-11-12 Thread Marcelo Ricardo Leitner
Em 12-11-2015 11:12, Pete Geenhuizen escreveu: I just installed the latest kernel 2.6.32-573.8.1.el6.x86_64 and when I rebooted it shorewall (shorewall-4.5.4-1.el6.noarch) failed with the following error ERROR: a non-empty masq file requires NAT in your kernel and iptables /etc/shorewall/masq

Re: [CentOS] firewalld being stupid

2015-11-17 Thread Marcelo Ricardo Leitner
Em 17-11-2015 01:26, Dennis Jacobfeuerborn escreveu: On 16.11.2015 22:58, Gordon Messmer wrote: On 11/16/2015 01:39 PM, Nick Bright wrote: This is very frustrating, and not obvious. If --permanent doesn't work for a command, then it should give an error - not silently fail without doing

Re: [CentOS] Keepalived vrrp problem

2015-09-29 Thread Marcelo Ricardo Leitner
Em 29-09-2015 15:03, Gordon Messmer escreveu: On 09/29/2015 09:14 AM, Tim Dunphy wrote: And if I do an ifconfig command I see no evidence of an eth1 existing. "ifconfig -a" will show you all of your interfaces. Maybe there is a confusion here. Sounds like Tim thought keepalived would

Re: [CentOS] Systemd spends 6 min. to startup a host

2015-10-05 Thread Marcelo Ricardo Leitner
Em 03-10-2015 13:47, C.L. Martinez escreveu: Hi all, I have a strange behavior with a CentOS7 host (fully patched). I have configured nics as old style format: ifcfg- ... due to I need to use openvswitch for my vms. All works well, except when I reboot this server. Systemd spends 6 min. to

Re: [CentOS] 7.2 kernel panic on boot

2015-12-05 Thread Marcelo Ricardo Leitner
Em 05-12-2015 05:35, Duncan Brown escreveu: On 04/12/2015 19:17, Marcelo Ricardo Leitner wrote: Em 03-12-2015 14:46, Duncan Brown escreveu: Here is a couple of pictures, http://i.imgur.com/Vqvqn1H.jpg http://i.imgur.com/WQaz1j9.png Any use? Of some. It's failing on ftrace initialization

Re: [CentOS] 7.2 kernel panic on boot

2015-12-07 Thread Marcelo Ricardo Leitner
Em 07-12-2015 16:35, Akemi Yagi escreveu: On Mon, Dec 7, 2015 at 10:18 AM, Duncan Brown wrote: On 07/12/2015 14:40, Akemi Yagi wrote: This bug report: https://bugs.centos.org/view.php?id=9860 and its upstream (RH) reference:

Re: [CentOS] 7.2 kernel panic on boot

2015-12-04 Thread Marcelo Ricardo Leitner
Em 03-12-2015 14:46, Duncan Brown escreveu: Here is a couple of pictures, http://i.imgur.com/Vqvqn1H.jpg http://i.imgur.com/WQaz1j9.png Any use? Of some. It's failing on ftrace initialization while allocating memory, but can't know the real reason. It can be just lack of memory or any

Re: [CentOS] Network services start before network is up since migrating to 7.2

2015-12-21 Thread Marcelo Ricardo Leitner
Em 21-12-2015 14:24, James Hogarth escreveu: On 21 December 2015 at 15:08, Sylvain CANOINE wrote: If you're using NetworkManager, you can "systemctl enable NetworkManager-wait-online.service" and you won't have to override any of the individual services. Our

Re: [CentOS] Network services start before network is up since migrating to 7.2

2015-12-23 Thread Marcelo Ricardo Leitner
Em 22-12-2015 13:53, m.r...@5-cent.us escreveu: c) wpa-supplicant - again, why? If it's hardwired, and behind switches and firewalls, why PNAC if every server is running firewalls? mark "let's *please* NOT talk about NAC via Cisco, and people who allegedly know and

Re: [CentOS] Network services start before network is up since migrating to 7.2

2015-12-23 Thread Marcelo Ricardo Leitner
Em 22-12-2015 08:33, Sylvain CANOINE escreveu: - Mail original - De: "Marcelo Ricardo Leitner" <marcelo.leit...@gmail.com> À: "centos" <centos@centos.org> Envoyé: Lundi 21 Décembre 2015 21:46:10 Objet: Re: [CentOS] Network services start before netwo

Re: [CentOS] how to force outbound ssh through one network card

2016-03-09 Thread Marcelo Ricardo Leitner
Em 09-03-2016 01:54, John R Pierce escreveu: On 3/8/2016 8:47 PM, Clint Dilks wrote: Here is documentation that may help http://lartc.org/howto/lartc.rpdb.multiple-links.html but as John mentions it is painful to get right. sadly, that document is like 15 years old, and hasn't been updated.

Re: [CentOS] UDP de-fragmentation problem

2016-04-11 Thread Marcelo Ricardo Leitner
Em 10-04-2016 14:25, Volker escreveu: On 09.04.2016 21:40, Marcelo Ricardo Leitner wrote: Hi, Em 07-04-2016 12:19, Volker escreveu: Hi all. I have a strange problem at hand regarding UDP fragmentation on Centos7: Applications are unable to receive UDP packets which have undergone

Re: [CentOS] UDP de-fragmentation problem

2016-04-11 Thread Marcelo Ricardo Leitner
Em 11-04-2016 09:10, Marcelo Ricardo Leitner escreveu: Em 10-04-2016 14:25, Volker escreveu: On 09.04.2016 21:40, Marcelo Ricardo Leitner wrote: Hi, Em 07-04-2016 12:19, Volker escreveu: Hi all. I have a strange problem at hand regarding UDP fragmentation on Centos7: Applications are unable

Re: [CentOS] UDP de-fragmentation problem

2016-04-09 Thread Marcelo Ricardo Leitner
Hi, Em 07-04-2016 12:19, Volker escreveu: Hi all. I have a strange problem at hand regarding UDP fragmentation on Centos7: Applications are unable to receive UDP packets which have undergone fragmentation UNLESS the netfilter modules are loaded. The problem arose on a application which would

Re: [CentOS] UDP de-fragmentation problem

2016-04-09 Thread Marcelo Ricardo Leitner
Em 08-04-2016 14:38, Gordon Messmer escreveu: On 04/07/2016 08:19 AM, Volker wrote: I have a strange problem at hand regarding UDP fragmentation on Centos7: Applications are unable to receive UDP packets which have undergone fragmentation UNLESS the netfilter modules are loaded. ... The

Re: [CentOS] UDP de-fragmentation problem

2016-04-09 Thread Marcelo Ricardo Leitner
Em 07-04-2016 12:19, Volker escreveu: ... select(8, [3 7], [], [], NULL) = 1 (in [7]) recvfrom(7, 0x7ffdf3072e1b, 1, 2, 0x7ffdf3072e20, 0x7ffdf3072e1c) = -1 ^--- I think that's why EAGAIN (Resource temporarily unavailable) select(8, [3 7], [], [], NULL

Re: [CentOS] IPSec multiple VPN setups

2016-03-21 Thread Marcelo Ricardo Leitner
Well, RHEL actually supports upgrading from 6 to 7 in some use cases. If you have access, https://access.redhat.com/solutions/21964. Not sure how that fits for CentOS though.. Em 21-03-2016 15:38, Eero Volotinen escreveu: err. upgrades? You mean reinstall? As upgrading between major releases

Re: [CentOS] Network bond - one port goes down from time to time

2016-03-30 Thread Marcelo Ricardo Leitner
Em 30-03-2016 06:46, Götz Reinicke - IT Koordinator escreveu: Am 29.03.16 um 13:57 schrieb Marcelo Ricardo Leitner: Em 29-03-2016 03:46, Götz Reinicke - IT Koordinator escreveu: Am 28.03.16 um 16:23 schrieb Marcelo Ricardo Leitner: Em 28-03-2016 06:27, Götz Reinicke escreveu: Hi, may

Re: [CentOS] Network bond - one port goes down from time to time

2016-03-28 Thread Marcelo Ricardo Leitner
Em 28-03-2016 06:27, Götz Reinicke escreveu: Hi, may be someone has an idea: We have three supermicron servers with two 10Gb Ports each, connected to a cisco switch stack 1Gb ports. All are on auto speed. I configured a LACP bond on both sides on all servers, first with citrix xen server.

Re: [CentOS] Network bond - one port goes down from time to time

2016-03-29 Thread Marcelo Ricardo Leitner
Em 29-03-2016 03:46, Götz Reinicke - IT Koordinator escreveu: Am 28.03.16 um 16:23 schrieb Marcelo Ricardo Leitner: Em 28-03-2016 06:27, Götz Reinicke escreveu: Hi, may be someone has an idea: We have three supermicron servers with two 10Gb Ports each, connected to a cisco switch stack 1Gb

Re: [CentOS] More oddities...

2018-05-01 Thread Marcelo Ricardo Leitner
On Tue, May 01, 2018 at 03:28:29PM -0400, m.r...@5-cent.us wrote: > My manager's workstation is C 7.4, and it started screaming yesterday > about issues with ata5. > > Except that he has one internal and one external drive, and a DVD. Anyone > have clues as to what could be causing this, or where

Re: [CentOS] Problem with ssh disconnecting

2018-02-19 Thread Marcelo Ricardo Leitner
On Mon, Feb 12, 2018 at 08:05:18PM -0500, H wrote: ... > Not sure if I am reading your reply correctly but I should clarify > that I have problems when running naked ssh to the server, when I > run ssh to the same server but over the VPN connection (that goes > via third server) everything is

Re: [CentOS] iptables routing question when using multiple IP addresses

2018-02-16 Thread Marcelo Ricardo Leitner
On Fri, Feb 16, 2018 at 02:54:02PM +, Ken Gramm wrote: > I've been searching around for a couple of days, and I just can't > seem to find the answer I'm looking for. > > > I have a 6.x box that I use as my gateway firewall. It has three > NICs; 1 external, 1 internal, 1 for a guest network.

Re: [CentOS] Imap daemons for CentOS 6 (other then cyrus-imapd)

2018-06-21 Thread Marcelo Ricardo Leitner
On Thu, Jun 21, 2018 at 05:23:31PM -0400, Robert Heller wrote: > At Thu, 21 Jun 2018 20:42:50 +0200 CentOS mailing list > wrote: > > > > > On 21.06.2018 19:28, Robert Heller wrote: > > > Are there any imap daemons (besides cyrus-imapd). cyrus-imapd is > > > appearently > > > not compatible

Re: [CentOS] Squid and HTTPS interception on CentOS 7 ?

2018-02-28 Thread Marcelo Ricardo Leitner
On Wed, Feb 28, 2018 at 10:23:31PM +0100, Nicolas Kovacs wrote: > Hi, > > I've been running Squid successfully on CentOS 7 (and before that on 6 > and 5), and it's always been running nicely. I've been using it mostly > as a transparent proxy filter in school networks. > > So far, I've only been

Re: [CentOS] Squid and HTTPS interception on CentOS 7 ?

2018-02-28 Thread Marcelo Ricardo Leitner
On Wed, Feb 28, 2018 at 06:43:50PM -0300, Marcelo Ricardo Leitner wrote: > On Wed, Feb 28, 2018 at 10:23:31PM +0100, Nicolas Kovacs wrote: > > Hi, > > > > I've been running Squid successfully on CentOS 7 (and before that on 6 > > and 5), and it's always been runn

Re: [CentOS] OT: Problems with NextCloud 13.0.1 under Centos7

2018-03-31 Thread Marcelo Ricardo Leitner
On Wed, Mar 28, 2018 at 11:36:41AM +0200, C. L. Martinez wrote: > Hi all, > > I have a strange problem with a clean NextCloud 13.0.1 install under > CentOS 7 (fully patched): when I try to login with admin user immediately > after setup, returns to login page without returning any error. FWIW,