Discuss November 2015

discuss@lists.centos.org

130 participants
112 discussions

Newbie alert
by Shraddha Barke 26 Nov '15

26 Nov '15

Hello guys! I'm Shraddha , an opensource enthusiast and a regular contributor to the linux-kernel project. I'm currently an intern at Linux Kernel selected through the Outreachy program. I started contributing to opensource only 5 months ago but I'm already quite active. I would like to join the centos project.Any help on getting started is appreciated :) Kind Regards, Shraddha -- Shraddha

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IP table Restore
by Siva Prasad Nath 26 Nov '15

26 Nov '15

Hi, If possible advice me for below error. [root@ns1 sysconfig]# iptables-restore < /etc/sysconfig/iptables iptables-restore: line 2 failed Thanks in advance.

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Glibc vulnerbality CVE-2015-1781
by Venkateswara Rao Dokku 26 Nov '15

26 Nov '15

Hi, We are using CentOS 5.5 as a base OS for one of our products.The version of Glibc we are using was glibc-2.5-123.el5_11.1. We wanted to see whether this glibc is vulerable to CVE-2015-1781. I have gone through re-documentation & came across the following link https://access.redhat.com/security/cve/cve-2015-1781 In the link it is mentioned that, the CVE will not be fixed in Red-Hat 5 version. What does that mean? I mean, whether the RedHat 5 is vulnerable & fix is not available or RedHat 5 is not vulnerable, hence the fix is not given? Thanks for the info. -- Thanks & Regards, Venkat

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Help with Intel 6235 Wireless on CentOS 7 (pointer to good reading?)
by Valeri Galtsev 25 Nov '15

25 Nov '15

Dear Experts, I would like to ask your advise on good reading about how to add WiFi device, and how to control its settings on CentOS. Sounds really dumb, but this is what I am NOT able to do on CentOS 7 what I was able to do in the past, beginning somewhere since RedHat 5 or 6, through Fedora and up to CentOS 6. In brief: my card is Intel 6235; CentOS 7 (fully updatted), latest kernel (3.10.0-229.20.1), relevant Intel firmware version for my card is in /lib/firmware (together with large bunch of other Intel WiFi firmware), relevant modules are loaded in kernel: iwlwifi iwldvm mac80211 cfg80211 "/sbin/ifconfig -a" shows my device in the list renamed to wlp3s0 (according to PCI slot numbering I figure), dmesg shows device brought up successfully detected and renamed as above. lspci shows device with its correct full name (Network controller: Intel Corporation ... 6235" Now comes the fun part (no, troublesome for me part). When I click on the NetworkManager Applet in right top corner, there are no WiFi devices. I go to Network Settings from there. My device is in the list under name "PCI Unknown". I click on that, the device is described as "unmanaged", and there is no way to make changes to the contrary to other devices (correct MAC address is displayed). OK, I assume I just need to declare device as NM_CONTROLLED. There is no relevant /etc/sysconfig/ifcfg-wlp3s0 - where I know I can declare that. I use "nmtui" to add configuration, then add to ifcfg-wlp3s0 NM_CONTROLLED="yes" line. Reboot. Still the same. Just for comparison I booted Ubuntu 14.0.4 x86_64 live CD. Yes, it can see my wireless, and I can connect to WiFi networks. Kernel is just a notch newer (3.13.0.24) which shouldn't matter according to Intel information which kernel versions this device is supported in. List of relevant kernel modules loaded by ubuntu is exactly the same. I don't see anything weird like the need to separately load firmware as kernel module (yes, indeed I'm going nuts, that would be "freebsd-ism" I guess). I do not want to have Ubuntu (or Debian which likely will work out of the box too) on this laptop. So, apparently I need a pointer to good reading on how do we do it on CentOS 7 "dirty way" - when "click here, choose in menu that" doesn't work. Thanks a lot for your advises! Valeri ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

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Install Firewalld
by Siva Prasad Nath 25 Nov '15

25 Nov '15

I am trying to install Firewalld. I am using CENTOS 7. Please help me to solve the error. [root@ns1 httpd]# systemctl enable firewalld [root@ns1 httpd]# systemctl start firewalld [root@ns1 httpd]# systemctl status firewalld firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled) Active: inactive (dead) since Thu 2015-11-26 02:43:16 SGT; 11s ago Process: 35808 ExecStart=/usr/sbin/firewalld --nofork --nopid $FIREWALLD_ARGS (code=exited, status=0/SUCCESS) Main PID: 35808 (code=exited, status=0/SUCCESS) Nov 26 02:43:16 ns1.currencybooking.com systemd[1]: Started firewalld - dynamic firewall daemon. Nov 26 02:43:16 ns1.currencybooking.com firewalld[35808]: 2015-11-26 02:43:16 ERROR: ebtables not usable, disabling ethernet bridge firewall. Nov 26 02:43:16 ns1.currencybooking.com firewalld[35808]: 2015-11-26 02:43:16 FATAL ERROR: No IPv4 and IPv6 firewall. Nov 26 02:43:16 ns1.currencybooking.com firewalld[35808]: 2015-11-26 02:43:16 ERROR: Raising SystemExit in run_server [root@ns1 httpd]# ERROR: ebtables not usable, disabling ethernet bridge firewall.^C [root@ns1 httpd]# firewall-cmd --state not running Shiva Prasad Nath 92981134

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Poor perfmance of bridged interfaces
by Sergio Belkin 25 Nov '15

25 Nov '15

Hi, I've created a bridge using 2 interfaces and have a lot of messages as follows: nov 12 15:30:22 localhost kernel: br0: received packet on enp0s3 with own address as source address nov 12 15:30:22 localhost kernel: br0: received packet on enp0s3 with own address as source address And the operating systems is extremely slow Interfaces files : [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-* DEVICE=br0 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes #STP=on #DELAY=0 NM_CONTROLLED=no DEVICE=enp0s3 #HWADDR=08:00:27:AB:1D:E6 BOOTPROTO=none ONBOOT=yes NM_CONTROLLED=no BRIDGE=br0 DEVICE=enp0s8 HWADDR=08:00:27:A3:98:E6 BOOTPROTO=none ONBOOT=yes NM_CONTROLLED=no BRIDGE=br0 DEVICE=lo TYPE=loopback IPADDR=127.0.0.1 NETMASK=255.0.0.0 NETWORK=127.0.0.0 # If you're having problems with gated making 127.0.0.0/8 a martian, # you can change this to something else (255.255.255.255, for example) BROADCAST=127.255.255.255 ONBOOT=yes NAME=loopback I've disabled NetworkManager, but problem persists. System is: [root@localhost ~]# uname -a Linux localhost 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux And is virtualized on VirtualBox Please could you help me to fix it? Thanks in advance! -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

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OT: Replacing Venerable NAS
by Tim Evans 25 Nov '15

25 Nov '15

I have an original-label Infrant (now NetGear) ReadyNAS storage appliance that's been running for 8+ years. Except for replacing its power supply, it has not skipped a beat in all this time. I use it primarily as a backup device (via NFS) for a couple of Linux machines, (via SMB) for a couple of Windows PC's, and (via ftp) for web sites at my hosting provider. SMART+ reporting shows ~75K hours operation, with zero sectors reallocated, on each of the four disks. I'm thinking I should be looking for a replacement, even with all this good info/luck. Would like to hear recommendations here. Besides the ReadyNAS, I have worked with a Thecus NAS (don't recall model). What are the features I should look at? Thanks. -- Tim Evans |5 Chestnut Court 443-394-3864 |Owings Mills, MD 21117

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Re: [CentOS] Google Ads in rsyslog documentation files
by m.roth＠5-cent.us 25 Nov '15

25 Nov '15

Peter Eckel wrote: > Hi all, > > I know this comes from upstream (and most likely from the rsyslog project itself), but what's your opinion about Google Ads in system documentation files? > >> [peckel@mucnvjmppmtr01 ~]$ cat /etc/redhat-release >> Red Hat Enterprise Linux Server release 6.7 (Santiago) >> [peckel@mucnvjmppmtr01 ~]$ grep google /usr/share/doc/rsyslog-5.8.10/* /usr/share/doc/rsyslog-5.8.10/rsyslog_secure_tls.html:google_ad_client = "pub-3204610807458280"; >> /usr/share/doc/rsyslog-5.8.10/rsyslog_secure_tls.html:google_ad_slot = "5958614527"; >> /usr/share/doc/rsyslog-5.8.10/rsyslog_secure_tls.html:google_ad_width = 125; <snip> > I find it rather disconcerting if there are commercial ads embedded in help texts I find on my open source servers. "Disconcerting" isn't the word I would use. Completely unacceptable is what I'd say. I think it's time to put in a bug report to upstream.... I need to check with my manager. I do note this is not the case in rsyslog on CentOS 7. mark

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Regional CentOS Specific Meetup groups
by Karanbir Singh 25 Nov '15

25 Nov '15

Hi, Just a quick post to say that I've setup a CentOS users group in the UK at http://www.meetup.com/CentOS-UK - aim to start organising regular demos and meetups face 2 face around the country. If you are based in the UK, I encourage you to come join the group. Also note that we have a CentOS group in India at http://www.meetup.com/CentOS-India/ and another group for the Netherlands at http://www.meetup.com/CentOS-Netherlands/ Regards and hope to see you at one of these meetups soon, -- Karanbir Singh, Project Lead, The CentOS Project +44-207-0999389 | http://www.centos.org/ | twitter.com/CentOS GnuPG Key : http://www.karan.org/publickey.asc

1 0

How & where to add
by Siva Prasad Nath 24 Nov '15

24 Nov '15

auto eth0 iface eth0 inet static address 192.168.50.2 netmask 255.255.255.0 -- Shiva Prasad Nath 92981134

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Discuss November 2015