CentOS is a free (as in beer and speech) GNU/Linux distribution that is community driven and based on source code released from RedHat.

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2answers
15 views

id command is not showing secondary groups

During some days I've been working on a LDAP integration. Now, after configure almost everything that I needed, I came up with this last wall: The need of use secondary groups which are taken from the ...
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0answers
9 views

CentOS: crontab vs. yum-cron

What is the difference between scheduling yum -y update in crontab and using yum-cron for updates? I'm looking to schedule updates on specific days to allow a period of time between updates on test ...
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1answer
18 views

OpenSSL's version on centos 7.2

I am using centos 7.2, the version that comes with centos 7.2 is 1.0.1 , I intalled 1.0.2 form source, then view the version,but it's still 1.0.1 . What should I do if I want to use 1.0.2? ...
0
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1answer
21 views

httpd service refuse to start after packstack installation

Centos 7 Openstack single machine setup After packstack installation I did reboot my computer and after it turned on, httpd service failed to start httpd.service - The Apache HTTP Server Loaded: ...
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0answers
14 views

DSR on a DNS Cache Server… How

I have a doubt/problem. I have to set a DNS Cache Server that is behind a LB F5, i was asked to set 2 types of IPs, 1 IP is on 10.xx.xx.xx and its used to listen and reply all the cache store queries, ...
0
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1answer
23 views

ntlmssp_handle_neg_flags: Got challenge flags[0x60898205] - possible downgrade detected! missing_flags[0x00000010] - NT code 0x80090302

I'm trying to access SMB/CIFS resource on NetApp, using following and getting error: $ cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) $ rpm -qa | grep ^samba- ...
0
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1answer
1k views

Apache not loading: libmysqlclient.so.18: file too short

I have installed MySQL and PHP, and I tried restarting apache and here what happens when I run # service httpd restart: Stopping httpd: [FAILED] ...
1
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2answers
21 views

How have phpMyAdmin (with a Alias) with a virtual host subdomain of a different documentRoot

To increase security in my server I created an subdomain only for admin, like admin.domain.tld and usually i access phpmyadmin by going only at admin.domain.tld/mysqladmin as in config file: ...
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0answers
13 views

Limiting the amount of httpd processes for a single Virtual host?

I have the following issue. I have a CentOS based VPS that hosts two virtual hosts, one serves the customer - the other maintains an API that the first one relies on. Now, here comes my problem. If ...
1
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2answers
63 views

Why does Debian have RPM and Yum packages?

I know that Debian comes with an awesome package manager called APT which is capable of installing .deb packages. I know that RHEL comes with a package manager called Yum and is capable of installing ...
-1
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1answer
39 views

trouble deploying django under apache on centos with mod_wsgi

EDIT 2: I got this running mostly! It was indeed a SELinux issue. So most things work, I get a cannot write to a read only database error. And some of my things that seem like static are not ...
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1answer
1k views

CentOS 6 init script doesn't work properly

I'm setting up my ruby production server based on CentOS 6. I need a process called god (which is a process monitoring tool) to start at boot. I'm using an init script that I found here. Just as ...
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0answers
10 views

CentOS 6.7 w/ cPanel - redirects to cgi-sys/defaultwebpage.cgi [on hold]

I have a dedicated server. Runs CentOS 6.7 with cPanel latest version. Whenever I try to access the domain via its IP, as I currently have not assigned it a domain name, I get redirected to ...
0
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0answers
13 views

CentOS network bridging and Xen

I'm using CentOS 6 and Xen 4.6 on a bare metal machine. I'm trying to install ubuntu as a guest but I fail in the networking section. (I use netboot image). I have two eths named eth0 and eth1. ...
1
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0answers
16 views

Failing to connect Azure CentOS VM via Sentora FTP

I created CentOS 6.5 and I installed Sentora 1.0.3 on Azure VM Service. But i couldn't make a connection with Sentora FTP account. I'm trying to connect Sentora ftp account with FileZilla. I get ...
0
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0answers
23 views

Fail2ban 0.9.3 not working on centos7.2

I'm really struggling with this. The default [sshd] jail works fine. Status for the jail: sshd |- Filter | |- Currently failed: 0 | |- Total failed: 0 | `- File list: /var/log/secure `- Actions ...
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0answers
12 views

cgroup same process with different resources

I have a Jboss application server installed through source and running multiple instances(say 3) of JBoss as a same user in a single machine on different ports. Using cgroups, I'm trying to do ...
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0answers
2 views

PuTTy can't establish SSH tunnel [migrated]

I'm trying to set up remote debugging for PHP using Xdebug and PhpStorm. My local development machine has Windows 7 and the remote machine has CentOS 6. I'm following this guide to no avail: ...
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2answers
2k views

Another PHP NGINX error: “No input file specified”

I looked through about 5 questions and blog posts already and tried everything they told me without luck. I can browse to www.example.com/phpinfo.php, but not www.example.com/index.php. I even went so ...
0
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1answer
2k views

“Disk Not Found” Error when trying to install iso image of CentOs on ESXI using VSphere

When trying to install CentOs setup as an iso image on datastore, i get an error : "Disk Not Found". I am using ESXi 4.1 as host VM. Is there a way to attach DVD/CD as iso image ? I tried "Connect at ...
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1answer
25 views

Provision a virtual server within CentOS 7? [on hold]

This may be a really silly question, but I currently have a dedicated server and I have an incredible amount of redundant hardware. I'd like to be able to provision virtual servers running various ...
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0answers
16 views

Fail2ban error 'database is locked' when trying to start / restart it

I am currently reinstalling fail2ban to have a fresh version, because i've modified it quite a lot of time since I installed it for the first time, and I wanted to default settings for it. Once ...
0
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1answer
27 views

Unable to start cron service [duplicate]

Few days ago I added a cronjob using crontab -e which should run every 6 hours, however I noticed that cron job is not working. When I execute my script manually it works, and it should write some ...
3
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3answers
7k views

How can I permanently set ulimit -n 8192 in Centos 7?

I would like to permanently set the open file limit for all users in Centos 7, but there seems to be a lot of conflicting information out there on the googles. Thanks!
0
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1answer
30 views

godaddy vps dns setting

I have goDaddy Domain with this dns record a @ 107.150.xx.xx 600 seconds Edit cname email email.secureserver.net 1 Hour Edit cname ftp @ 1 Hour Edit cname www @ 1 ...
-1
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1answer
41 views

How can I connect a group of vms in Azure?

I have a number of Azure Linux VMs. I am able to ssh into all of them using the public azure connection info, however I am not able to ssh from one vm into another vm using the private info. I have ...
0
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2answers
4k views

CentOS 7 installer: blank screen

I am trying to figure out CentOS 7 unattended network (PXE) installations in my setup, but the installer always ends up running into a black screen without interaction options. This is being tried in ...
1
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1answer
4k views

Centos set default ftp directory for a user

I am setting up accounts for people to connect to the server through ssh and SFTP. When I test the login, it goes straight to the "/" directory, and I do not want that to happen. I want to make it so ...
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0answers
21 views

Blank LVM partition after recovery. Where is the data?

colleagues! A few days ago, the logical volume has been removed from one machine. Today, it turned out that there were still important data. No problems, everyone knows vgcfgrestore. Found in the ...
0
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0answers
16 views

Pros and cons of having one IP Address for many websites [on hold]

In last 2 years, I start having a lot of clients. Around 10 active clients at the moment. Knowing that, I work for myself, I decided to save the cost of renting the server by putting all the web of my ...
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0answers
11 views

cp: cannot stat `*.so': No such file or directory (compiling crypto++) - Centos 6

I try to install crypto++ on Centos 6.7 but terminal return this error [root@emule2 ~]# make install mkdir -p /usr/include/cryptopp /usr/lib /usr/bin cp *.h /usr/include/cryptopp cp *.a /usr/lib cp ...
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0answers
9 views

configure: error:UPnP code has been disabled, Could not find crypto++ header file

I use Centos 6 (6.7)I want correct this command (is wrong) [root@ultimi aMule-2.3.1]# ./configure --prefix=/usr --with-denoise-level=4 --enable-optimize --disable-debug --enable-cas --enable-wxcas ...
0
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0answers
27 views

High server load after kernel update [closed]

Today I updated the kernel but once rebooted the server, the cpu usage increased to +30 (it was 3 or 4 at most before reboot) I'm running Centos 6.6 64bit Any solution? Update: The current kernel ...
0
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1answer
2k views

CentOS: DHCP Server and DHCP relay on same machine

eth0 IP: 192.168.1.100 Alias interface eth0:dhcp IP: 10.10.1.100 dhcpd.conf: authoritative; local-address 10.10.1.100; subnet 10.10.1.0 netmask 255.255.255.0 { range 10.10.1.10 10.10.1.50; ...
1
vote
1answer
1k views

How to run Visual VM on remote centos

We have a java application residing on centos machine. From our windows machine we plan to connect to the application. We have enabled jstatd and confirmed is running. The issue now is visual vm can ...
0
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1answer
2k views

Subdomain error: server DNS address could not be found

I'm trying to add subdomain to my domain. I just installed httpd on my clean centos 7. At first I created file /etc/httpd/conf.d/htmltest.mydomain.com.conf with the following contents: ...
0
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1answer
1k views

What cause high CPU usage on the server during file upload

When I try to upload a huge file size (approx 2GB), the server cpu usage goes really high. What should I do to fix this? I just use standard html form and php, for file upload. I'm sorry if I post ...
1
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1answer
1k views

Mounted NFS directory not writable by Apache / PHP

Need some help here with NFS. Here's what I have (all servers running CentOS 5.6 with SELinux): 172.17.20.1 - Primary server with static IP. Varnish redirects requests to the web servers. 172.17.20.2 ...
0
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2answers
1k views

Mysql 5.5 is not installed in CentOS 5.7

I am using CentOS 5.7 with 64 bit. In my machine already have MySQL 5.0.88 version. Now I want to upgrade MySQL to 5.5 version. I followed this link to start my installation process. When i give "yum ...
2
votes
2answers
2k views

grubby fatal error: unable to find a suitable template

I'm trying to fix my system after moving it from one server to another. It works perfectly with kernel booted via network, but not from the disk. Reinstalling stock CentOS 6.6 kernel shows this ...
5
votes
3answers
3k views

Centos 6.3 install reiserFS support

I'm trying to change an existing ext4 partition to reiserFS in Centos 6.3 64bit. I've updated the kernel to Centos Plus: First, I've updated /etc/yum.repos.d/CentOS-Base.repo: In the [centosplus] ...
0
votes
3answers
4k views

dovecot start “Address already in use” error

I'm currently trying to use some "me@mydomain.com" adresses on my dedicated server (Centos5). To do so, I'm tring to launch dovecot with /etc/init.d/dovecot start, but I get the following error ...
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0answers
18 views

Updating autoreconf to latest version

I have build autoconf from source but autoreconf still show old version wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz gunzip autoconf-2.69.tar.gz tar xvf autoconf-2.69.tar ./configure ...
3
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2answers
2k views

couchdb 1.6.0 from source - jsapi.h: present but cannot be compiled

I'm trying to install couchdb 1.6.0 from source on CentOS 6.5 (EPEL resository has a very old version unfortunately) following this guide. Everything went fine until ./configure step on couchdb - ...
3
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2answers
1k views

Why can't I setup an SSHFS share? “OSXFUSE file system is not available” error

I'm trying to setup an SSHFS share from my local machine to a remote machine, but it is not working. I'm getting the error OSXFUSE file system is not available (see below). How to fix this?? FYI, my ...
0
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0answers
30 views

Postfix: status=deferred (delivery temporarily suspended: lost connection while receiving the initial server greeting)

Good day all, I have installed postfix 2.6 on my centos and trying to sent emails through a smarthost, to which I can telnet on smtp port, and failing with subject error. My main.cf is as follows: ...
0
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3answers
4k views

sudo does not prompt for password and reports 3 incorrect password attempts

User smithj is listed in the /etc/sudoers file: root ALL=(ALL) ALL smithj ALL=(ALL) ALL smithj logs into the system via putty. He attempts to sudo but gets this: sudo adduser jonesjp Sorry, try ...
3
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1answer
133 views

Ansible Playbook: Ensure a process is running on any one node of a cluster?

Ansible makes it easy enough to ensure that a process is running on every host. I could do something like: --- - hosts: app_cluster tasks: - name: Look for the "foo" process shell: ps -ef ...
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0answers
39 views

Why and How to set Public IP on Loopback Interface

I been using this forums for many years and this is the first time im in need to open a question, i search across the internet but i could not get an specific and clear answer, probaly because i dont ...
0
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2answers
27 views

Postfix Catchall - Avoid Spam

I've 2 accounts on my CentOS server configured with catchall email accounts. Lately I've been receiving bounced emails with virus that were supposedly sent from my server account, Ex: ...