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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Why is lfd prematurely removing blocks?

As you can see in the excerpted log file below (from /var/log/lfd.log), lfd is prematurely removing temporary blocks that it imposes on IPs: Apr 7 13:07:59 host lfd[32117]: (wordpressxmlrpc) Request ...
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15 views

How do I use Client9's IPCat with IPTables

I'd like to block all ips of all datacenters in the world with this list: https://github.com/client9/ipcat But I don't know how to use that list, I'd like a bash script that checks if there's an ...
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2answers
71 views

Build a production IPA server without integrate DNS and NTP with client

We are going to deploy a centralized authentication Linux server (RHEL6) for our RedHat/CentOS servers in Data Center environment. I made some search I believe Free IPA is the best choice since it's ...
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1answer
26 views

CentOS: How to create a default route after server starts

I'm using CentOS 6.7 on Proxmox KVM. Now I would like to get my network-connection working. This is my config: Now I have to perform ip route add 89.xxx.xxx.1 dev eth0 and ip route add ...
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26 views

“-bash: fork: retry: …” on SSH connection

When I'm connecting via ssh to my useraccount of my server, I'm getting the following error: -bash: fork: retry: No child processes -bash: fork: Resource temporarily unavailable Does anyone ...
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1answer
29 views

Web App Error After Installing Java on Centos Server

Good day. My web app is programmed in jsp, using some of jQuery and javascript, is on a server with Centos 6.4, the app run its own java 1.7.0 - tomcat 8.0.21 and between its functions, uses javax....
3
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1answer
69 views

Very Huge Sized Cache of Duplicity

I am currently using a duplicity script to backup my 110G/2T CentOS server to a 2T sftp server. Since 4 days passed, duplicity backed up just 90G. This is not a problem. The main problem is; I have ...
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19 views

WSGI socket errors with Trac install - (prefork, not ITK)

I am trying to run Trac using Apache 2.2.15 and mod_wsgi 3.2 (prefork). I am having the same socket problem described here: WSGI says "permissions denied" on my Ubuntu server, no ...
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20 views

Exclude or change package used as dependency in rpm package under CentOS

I have an RPM package that depends on many other packages, so installing it will install everything I need - quite a normal approach. But one of the packages depends on custom nginx build (general ...
2
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1answer
32 views

NFS - Multiple sub dirs - Only one squashing as expected

Getting an unexpected behavior when mounting more than a single share. NFS Server $ -> cd /mnt/raid/nas && ls -lZa drwxrwxr-x. nas filer unconfined_u:object_r:file_t:s0 file ...
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61 views

Error connecting to IMAP server due to Permission denied

I'm using Postfix as MTA, Dovecot as IMAP server and Squirrel mail for web client. All of them are hosted in centos 6.7. Everything goes fine, but sometimes it shows following error(I face this more ...
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2answers
46 views

Cannot copy a local file to live server over a port other than 22 [closed]

I am trying to copy a file from my computer to my server through scp command. I have changed the default sshd port from 22 to 36871. Now, the problem is when I issue the scp command over port 36871, I ...
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24 views

SSL Port 8443 blocked in node.js

I have node.js listening on port 8443 using SSL . net stat shows node listening and I can telnet to the port. However, access is blocked for some reason. Firewall list ports shows that the port is ...
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20 views

Apache process memory footprint - disabling modules has no effect

Apache processes running on my server are using much more memory than I would expect. OS: Centos 7 RAM: 4GB mpm: Pre-fork php: mod_php My httpd.conf includes the modules in the following manner: ...
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2answers
18 views

Removing root access from pre-existing user accounts

I have a group of servers that I want to retain the users and their data. My problem is that my users already had root access to their servers and some have installed software using the root account. ...
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25 views

firewalld multiple public ips to multiple private ips routing

I'm trying to use CentOS 7 server as a firewall/nat for some sensitive servers on the LAN. The CentOS server has multiple public IPs (one per box on the LAN) and I'm trying to associate each external ...
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2answers
69 views

The data connection could not be established: EHOSTUNREACH - No route to host : Issue only with ftpes

I am getting following error while connecting to my ftp server. I have configured my ftp client with following details. ftp host : ftpes://hostname ftp user : username password : ******** Port : 21 ...
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63 views

User ldap cannot change password : LDAP password information update failed: Insufficient access

I'm using centos 6.7 to create LDAP server, but the user still cannot change their own password. The error when user try to change the password : [john2@servergw ~]$ passwd Changing password for ...
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30 views

NGNIX server blocks didn't work

I have 4 websites on VPS ip 104.207.148.242. I have been install NGNIX 1.8.1 successful. I do these steps: Make web directories: sudo mkdir -p /var/www/codingvn.com/html sudo mkdir -p /var/www/vyhn....
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2answers
30 views

Unable to install Subversion on Centos 6

I am attempting to install the subversion client on Centos 6.7 but after running: yum install subversion I get the below response: Error: Package: subversion-1.6.17-1.el5.x86_64 (amberdms-updates) ...
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1answer
122 views

CentOS 7 - Directories created through VSFTPD not inheriting SELinux contexts

Our company has a webserver with CentOS 7 and our customers manage their websites through FTP (vsftpd). SELinux is in enforcing mode. The issue is that data created/uploadad through VSFTPD is not ...
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27 views

Spacewalk: internal server error creating Kickstart distribution

So a fresh CentOS 7.2 install, fully updated. Installed Spacewalk according to this guide: Here Now Im at the point where I need to create a Kickstart distribution. I fill out the following: ...
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2answers
68 views

Who is the behind Webtatic repository and do you trust it

Webtatic repository has lots of useful packages for CentOS and RedHat. However the repository is very opaque and I have hard time to find information of who is behind it, appart of "Andrew Thompson", ...
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27 views

Identical DHCP leases, excessive dhcp traffic

Fresh install of CentOS 7, removed dnsmasq, installed dhcp server, iptables, webmin, apache. This is school and lot of switches and wifi (bridge mode) AP's connected to this router One network - 10....
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1answer
96 views

How to config vsftpd to map virtual user to a custom local user?

I would like that virtual user use a defined local user. this local user is member of groups apache (www-data for debian user, I use here a centos7) and ftp useradd ftpuser -d /var/www -g apache -G ...
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38 views

Webmin's Bacula Backup System module doesn't work after restart BareOS director service

I'm using BareOS 15.2 on CentOS 6.7, and for administration, using Webmin 1.791 with Bacula Backup System module. Problem is this. When I power on and start server, everything works just fine ...
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1answer
25 views

Tar file extract everything in archive but one specific folder

I am using tar -xf archive.tar -C /home/user/target/folder (in a bash script) to extract the contents of a specific archive (archive.tar) into the target directory (/home/user/target/folder) so that ...
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1answer
52 views

`yum-security` functionality for CentOS?

The question here is similar, but not identical, to my (broader) question, which is: TLD;DR version Are there any tools for CentOS 6 (preferably in the base or EPEL repos) which provide any or all ...
0
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1answer
72 views

How to create systemd unit file for phpbrew?

I'd like to create a unit file for systemd which will autostart PHP FPM after server reboot. Here is the file content: [Unit] Description=PHP 5.5.32 FPM [Service] User=deploy Group=deploy ...
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votes
1answer
19 views

CentOS: What to do with packages installed from DVD after network is enabled

I had to install a couple packages manually from the CentOS DVD before I had networking set up. Of course, yum reports them as "From repo : c7-media" I want to know if, when any updates come out for ...
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27 views

Speed: nginx serving static content even faster: fixed folder ; how can I

we run centos and nginx one of latest versions in 2016. We use 1 media directory with some underlying subdirectories. FTTB for php is 200ms which is very fast - but now I discovered that the JS CSS ...
2
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1answer
50 views

Equivalent to checkrestart for CentOS?

This is checkrestart. check which processes need to be restarted after an upgrade Are there any packages which provide that functionality? Hopefully obvious, but this answer is completely ...
2
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2answers
27 views

Need Help Upgrading LAMP (Centos) Server

I just took over the server admin duties for a CENTOS box (6.5-FINAL), and I need some direction, as I don't come from the LAMP side. The box is running: L: CentOS 6.5 FINAL A: 2.2.15 (Centos) M: 5....
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0answers
120 views

Install CentOS 6 on HP ML 150 gen9 server with b140i raid controller

I have HP ML 150 with Smart Array b140i controller. I want to install CentOS 6.6, but the driver isn't built-in the ISO. I have download the Driver and install in the USB(dd). I need the command for ...
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30 views

changing the IP address of rock compute node

In a cluster where the server is Centos-6.5 and the compute nodes are Rocks, I have changed the IP address of the server. Problem is, the compute nods stuck at the grub> prompt and they are not ...
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37 views

Enabling console login on CentOS

I've inherited a CentOS system where I can't login via the console. I can ssh to the machine and login, but not via the console. How do I go about enabling console logins?
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1answer
40 views

Cannot access Internet after connected to VPN [closed]

I have set up a VPN on my CentOS server. Client side can connect to sever side, and ping to each other. However, I can not access internet any more. lo Link encap:Local Loopback inet ...
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37 views

CentOS 6.4 YUM Python error

I'm getting an odd YUM error using the shell which I can't find any answers to elsewhere. What's weirder is that this worked fine on a very similar machine. It's a CentOS 6.4 machine and both YUM ...
2
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1answer
146 views

I think I've resolved dependency, rpm doesn't

I have upgraded EPEL repo in order to install Remi repository in order to upgrade PHP to 3.5.4 in order to upgrade civicrm (on a CentOS 6.7 VPS running one production site and its dev site). repolist:...
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2answers
195 views

Unable to run a python3 script in CentOs7 [with python2.7] via cronjob

I have been trying to deal with this strage problem all morning. I have a simple crawler.py file, which contans a code that can only run under python3 to be exact under python3.3 evenrionment Now, ...
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1answer
43 views

How to force Centos to use ipv6 interface only?

My Centos server has two virtual (Openvz) interfaces. One from these interfaces has ipv4 address configured, while the other one has the ipv6 one. In short this server is used for browsing / proxy. ...
1
vote
1answer
122 views

/var/run/postgresql missing after reboot

I have Centos7 machine set up and I'm having problems with postgres not starting after reboot. Even when I try to run the service manually I'm getting UTC FATAL: could not create lock file "/var/...
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0answers
30 views

Directory index forbidden by Options directive:

I am trying to host a django app on centos 6.4 and django 1..6.5.I read many thread related to this error and applied whatever thread suggested but still I am getting the same error. <VirtualHost *...
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1answer
105 views

Postfix sending spam to local email addresses without authenticating

Running on Centos 6.4. Past two weeks I've been receiving emails from other email accounts located on our server. admin@site.com is sending to careers@site.com and nonexistentemail@site.com is sending ...
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1answer
47 views

Max number of KVM guests in Centos host

On this page, Redhat state that RHEL 5, 6 & 7 are all limited to a maximum of 4 concurrently running KVM guests. Other products that they offer, such as "Red Hat Enterprise Virtualization", do ...
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1answer
90 views

BIND DNS nslookup NXDOMAIN

I have BIND DNS server installed in my LAN on Linux CentOS on IP 192.168.0.30. I also have HTTPD Web server installed in my LAN on Linux Centos on IP 192.168.0.23. My /etc/named.conf file is ...
0
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1answer
31 views

How to find webserver running on server and find why do some web apps respond and some don't?

I didn't configure this server so I don't know what is running or where things are running. The server is some sort of rack server (1U or 2U Dell running in our datacenter) running Centos. So we ...
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1answer
262 views

Can't delete LV (volume is used by another device)

We had a KVM machine running on a CentOS 6.7 server and have since deleted the VM. However, the logical volume that was assigned to the VM has remained on the system and I can't find a way to delete ...
0
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2answers
186 views

how to put files in ram

I have a server with 30 Gb ram and i have a script that put a (.ts) file (10mb) in /var/www/html/tv and script replace (.ts) file every 2 mintues. so my question is: can i mount this folder /var/...
0
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1answer
45 views

snmpd becomes unresponsive (Centos 6)

In the last couple of days, a Centos 6.7 mailserver on which I am monitoring is cotinuously timing out on snmp queries. No changes have been made to the server in the period immediately preceding the ...