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4
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220 views

CentOS requires entering password twice for sudo, login

At every login or sudo prompt, the server always rejects the password when it is first supplied, but accepts it the second time. I found this thread which describes what seems to be the same problem, ...
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29 views

What is the proper way to shutdown an iSCSI target with connected clients?

iSCSI with two DRBD primary nodes is a bad idea to use if the two paths get concurrent write requests. But I am thinking about using this idea as backend storage for an ESXi 5.5U2 host. I already did ...
3
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443 views

cloud-init does not grow the partition nor the filesystem

I am currenty preparing OpenStack-ready images of CentOS 7 and Ubuntu 14.04. For the "automation" I use Packer, which is provided by you with a JSON-template. Packer then starts the installation ...
3
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0answers
963 views

Very poor disk performance on KVM node - mdadm raid10

For a long period of time, i'm experiencing performance issues on CentOS servers that are used for KVM virtualization. I'm running software RAID-10 with 4 disks (Seagate ST2000DM001, 2TB, 7200rpm ...
3
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0answers
1k views

Unable to discover iSCSI targets

I have a trio of CentOS 6.4 machines that I'm trying to configure to use iSCSI. Basically two different initiators talking to two different targets on a single host server. On one machine, "the ...
3
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2k views

Corosync unicast issue with different nets

I'm using a setup (on our staging-system) with 2 root-servers and 1 fail-over-ip. As software we use corosync and pacemaker. Corosync is configured for multicast communication via port 5405. --> ...
3
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1k views

How to measure dcachesize usage (and reduce it)

I have a VPS running CentOS 5.7 (Final), 32-bit. Right after boot, when I run # cat /proc/user_beancounters I see that my dcachesize usage is at about 4100000, while my VPS is set up with a limit of ...
2
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83 views

teaming with nmcli: bringing connection down and up again fails

On a centos 7 virtual box, I create a team like this: nmcli connection add type team con-name team0 ifname veteam0 nmcli connection modify team0 team.config roundrobin.conf [root@rhce1 ~]# cat ...
2
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33 views

Daily sftp stops working, and weekly sshd fails and needs reinstall

My server has daily issues with its SFTP. Everyday I need to change the SFTP subsystem. Everyday it gets reset to: Subsystem sftp /usr/libexec/sftp-server While it has to be: Subsystem ...
2
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40 views

Failed at step EXEC spawning /usr/libexec/mariadb-prepare-db-dir

a bit of a newbie here so mind my obliviousness. I'm trying to install mariadb on a fresh Centos 7 server, though upon running "systemctl start mariadb.service" I get this malarkey: Job for ...
2
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0answers
60 views

yum-complete-transaction in a crazy loop

I was trying to update a server that I have with yum update and it aborted because the server ran out of memory. I killed off a few processes that were not needed and ran yum-complete-transaction but ...
2
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109 views

How to setup multiple OpenVPN connections on a server for a single localhost app to use on CentOS 6.5?

I have a scenario where I need to run several OpenVPN connections at one time and to allow a singular application to access each of these connections. How wold I go about starting up several ...
2
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78 views

Sendmail on CentOS 6, with SRS

I do some mail forwarding, but I'm also a big fan of SPF; I'm aware that I have a problem. While my mail server was running Centos5, I was using pysrs as a milter, and it worked well - but it hasn't ...
2
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0answers
159 views

Centos kickstart script url installation with mirror

I have a ks script to install Centos6.5. Inside my local network I have a snapshot of the base package mirror. I want to used as possible as I can my local package site over extranet like ...
2
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504 views

Hypervisor The operation cannot be performed while the object is in it's current state

I attempted to reboot one of my VMs in the Hyper-V Manager. It's a Centos VM and all of my other centos machines are behaving as they should although I can't get this particular one to boot. I'm a ...
2
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0answers
1k views

PHP Files being downloaded instead of displayed in browser

I created a VPS using Nginx and I tried to display the php info with: <?php phpinfo(); ?>. Instead, the browser asks me to download the php file, and it's not parsed either. This happens only ...
2
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98 views

Two CentOS servers, the weaker one performs 3 times faster than the stronger one

I have a dedicated server which is 8*3.3GHz Intel Xeon and 8GB of RAM, and the other one which is 4*2.3Ghz and 4GB of RAM. Servers are on different hosting company. I have some scripts that are ...
2
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1k views

Linux - NTP stopped working after recent update

A few days ago I had ntp setup on my network, and everything was running fine. One node was set to sync with upstream servers, and the rest of the nodes from the one set to sync upstream. Yesterday I ...
2
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67 views

TTFB different between 2 identical virtual hosts on same machine

After almost 3 years of finding every answer on either StackOverflow or ServerFault, I'm finally stuck on one. I recently migrated our server from dedicated to VPS, and the problem now is that we have ...
2
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0answers
836 views

Can't write to other users “you have write permission turned off”

For some reason I'm not able to write to other users on my system. [root@hostname ~]# write write: you have write permission turned off. [root@hostname ~]# mesg y [root@hostname ~]# mesg is y ...
2
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782 views

Gitlab - Cannot: create new project, list team members, add SSH keys or clone / push

I have just installed Gitlab on my Centos 6.4. At first glance everything seems to be working fine but for some reason, I have the following issues...: Add a new project : (Similar issues when ...
2
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65 views

ICU Latin-ASCII on Centos

Have ICU 4.2 on Centos 5, but need Latin-ASCII translitarator, which came in ICU 4.6. Is there any easy way to add Latin-ASCII without recompiling ICU (no rpm for Centos) and then PHP?
2
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0answers
240 views

How to apply tzdata-java update after installing package

Updated the following packages via YUM on the system (CentOS 5 64bit) tzdata-2012j-2.el5 tzdata-java-2012j-2.el5 The system package was applied correctly but the Java does not appear to be working ...
2
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177 views

Analyse of logwatch and aide file

We have both logwatch and aide file. We would like to know how to know if there any intrusion have had taken place as this server was not active for some time. We quite a number of this entries in the ...
2
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856 views

TRIM on OCZ RevoDrive 3 on CentOS

I've got an OCZ RevoDrive 3 mounted as / on my CentOS 6.3 box running kernel 2.6.32-220.17.1.el6.x86_64. /boot is on a HDD since OCZ's driver apparently doesn't yet support booting directly to it. ...
2
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781 views

Tomcat Unable to Connect

I have done a fresh install of Tomcat 7 on CentOS 6.2 system. Tomcat starts successfully without any errors in logs, but I am not able to access it on mydomain.com:8080. I get "cannot connect" ...
2
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0answers
212 views

What is the default metadata size in temporary volume during a pvmove?

I ran into an interesting error when attempting to address a particular problem. We had an issue where we have to move the extents over to new physical volumes because the metadata size was too ...
2
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0answers
1k views

Yum install on CentOS 6.2

I can't install any php extension Epel repository enabled Yum is updated yum repolist shows repo id repo name ...
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0answers
52 views

request failed: error reading the headers

Recently I moved my servers from one provider to the other and started to get this messages in apache error log: "request failed: error reading the headers" Example from the error and ...
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0answers
31 views

SMTP delay when sending mail from Centos

I am encountering long delays when trying to send mail with swiftmailer using 1and1's SMTP server. there is a 19 second delay everytime as shown below by tcpdump: 21:54:50.784747 IP (tos 0x0, ttl 64, ...
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46 views

How to set ethernet devices to specific hardware on Centos 7

I have a Centos 7 system where I've disabled the new network naming system and reverted to the old system (eth0, eth1, etc.). I've done this because I'm using this in an RDO Openstack setup, and this ...
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40 views

intel xeon e3 1231 v3 server load

I'm running a server with a single Intel Xeon E3-1231 v3 processor which is used as a virtual machine host (host OS is CentOS 7 and I'm using the KVM hypervisor via virt-manager). I created 4 virtual ...
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39 views

can't change NIS account password from Centos-7 client “NIS server Centos-6”

I'm trying to change password for a NIS account from a Centos-7.0.1406 client and the server is Centos-6.6 it seems that passwd command don't ask me neither to change password nor ask me for old ...
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24 views

pg_basebackup automatic password

I have a master and slave database setup. The master database is on a secure network and only the postgres port is allowed through to the slave database server. The database needs to be secured and ...
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0answers
23 views

NUMA enabled but can't detect node

I have a Centos 6.4 (kernel 2.6.32) machine with 2x Intel X5670 (Westmere) in a SuperMicro X8DTG-D motherboard with 2.0a BIOS version. BIOS Settings for ACPI are: ACPI Aware O/S: Enabled APCI ...
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0answers
41 views

Why is sendmail not relaying some email to Exchange?

On my network I have an Internet facing CentOS 6.5 server running sendmail. It receives email from my Sonicwall router running the full gambit of gateway spam and IPS services. It then relays ...
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0answers
32 views

config variable php_suffix does not match

I have a php instance on Webuzo (centos-6-x86_64.openvz) in /usr/local/apps/php54/. It already has pecl and phpize in /usr/local/apps/php54/bin/. When installing igbinary with command ...
1
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0answers
24 views

Can not access www with puppetlabs apache module

The vhosts are managed with the puppetlabs-apache module and I can not access the website with www but I can without it. When i use www I get a blank page and there are no errors an any logs and non ...
1
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0answers
58 views

CentOS server stops without any reason

So the server (physical) is CentOS 6.6, running VestaCP (apache+nginx+mysql+php) and nothing else. From time to time (when I'm sleeping for example) the server goes down without any notices. I ...
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190 views

Ping connected Clients to VPN tunnel PPTP

I have set up a vpn server on CentOS 6 (PPTP) following this guide... Server End ifconfig ppp0 Link encap:Point-to-Point Protocol inet addr:192.168.1.15 P-t-P:192.168.1.200 ...
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166 views

Installing MariaDB + Galera via yum fails with “No package MariaDB-Galera-server available”

I'm spun up a brand new Cento OS 7 virtual machine and I'm following this tutorial to install a MariaDB + Galera cluster. I've added the MariaDB repos as follows: vi /etc/yum.repos.d/MariaDB.repo ...
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33 views

httpd not starting because /run/httpd is missing

httpd fails to start on one of my servers running centos 7 because /run/httpd is missing, which means httpd can't create /run/httpd/httpd.pid and thus fails to start. My question is, why is ...
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0answers
152 views

Centos client authenticate against zentyal DC via ldap

I have a bit of a problem. 3 months ago we deployed a zentyal dc on my workplace because it was a good way of authenticating both windows, linux and mac against the same server. I got authentication ...
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39 views

Apache2 “RequireAny Granted” not functioning properly

I have a bit of an issue that I am very stumped on. I have a webpage on a CentOS 7 server running Apache. This page is on a virtual host file so that when ever I browse to htp://servername or IP I ...
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0answers
34 views

Xen VM could not be installed

I have rented a server from Hetzner. I have installed Xen on Dom 0 - Centos 6.5. I couldn't create a Dom1 Centos 6.5 VM. The Error I see is 'Unable to retrieve 'the link for centos image' while ...
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66 views

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message I've created new partition(/dev/sda6) and mounted it(on /hulk). Edited /etc/fstab file to give quotas on the ...
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64 views

Infiniband + KVM

this question is a copy from stackoverflow, as I was told, my question would fit here better. Despite quite a long search for days, I could not find any good information about the following - though ...
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0answers
94 views

libvirt / kvm guests take very long time to start after host reboot

Host system is CentOS 6.5 x86_64. I have setup an Ubuntu guest by following this wiki. The guest works, but: if I reboot the host, it takes a very long time (about 30 minutes on the last reboot) ...
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0answers
40 views

Linux: Process ignores signals

Processes running in Linux ignores signals (INT,QUIT,TERM) except KILL. Programs such as top, tail -f, sleep and etc, do not respond when pressing Ctrl+C and thus have to stop them from another ...
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123 views

Postfix + Saslauthd + Kerberos 5 + CentOS 7 not working

I've almost got saslauthd checking against Kerberos but seeing some last issues on CentOS 7. When postfix talks to saslauthd, it sends a lowercased domain and it's not corrected. I tried to fix things ...