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2
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3answers
298 views

What is the equivalent of packages.debian.org for CentOS?

I have a CentOS machine that is not connected directly to the internet. I need to install some packages manually. If this were Debian I would go to packages.debian.org, search for the package and ...
1
vote
3answers
342 views

Configuring Apache on CentOS

I've just deployed a new CentOS 5.7 box with a base install. After the base install I ran yum install httpd and confirmed that Apache was installed. I created a test index.html file in /var/www/...
1
vote
1answer
2k views

Centos mysql version is 5.5 however PHPmyadmin still says version 5.1

When i run the following in my console: [root@****~]# mysql -u root -p -e 'SELECT VERSION();' Enter password: +-----------+ | VERSION() | +-----------+ | 5.5.39 | +-----------+ Which should be ...
1
vote
2answers
7k views

CentOS PHP cURL NSS error 5938

Having a strange issue with cURL and PHP on a couple of CentOS boxes. Locally, I'm running CentOS 6.3. Remote is CentOS 5.9 Locally, the box receives a request, scp's a file to the remote server, ...
0
votes
2answers
913 views

Install the latest boost centos 5.5

How can I install the latest boost in centos 5.5? Like what commands.
0
votes
2answers
1k views

Run shell script from Apache conf or at Apache (re)start

I have a complex web application that contains a lot of dynamic Aliases. I created a shellscript that updates the .conf file(s) with these aliases. Is it possible to call this shellscript from within ...
0
votes
1answer
631 views

kernel-firmware is a duplicate with kernel-firmware Cent OS YUM

I am having isssues getting my server to run after yum update was interrupted. When trying to complete the yum update I am getting the following response. [root@RESCUE-web yum.repos.d]# sudo yum ...
0
votes
1answer
5k views

How to close an open relay in Postfix?

I've discovered my server has been an open relay. I asked about it and tried all the answers in My Postfix has gone wild. Am I hacked? but still its acting up. Every time I run #postsuper -d ALL I get ...
0
votes
3answers
6k views

FFMpeg-PHP Installation Error

While installing FFmpeg-PHP, I got this interesting error: /usr/downloads/ffmpeg-php-0.6.0/ffmpeg_movie.c: In function 'zim_ffmpeg_movie_getAudioStreamId': /usr/downloads/ffmpeg-php-0.6.0/...
0
votes
2answers
395 views

Hard drive on server which hosts public_html folder is full. What to do?

The dedicated server is running Cent OS, has 2 x 1TB hard drives. One domain is hosted on this server. I've been uploading files to the public/html folder no problem, but I've reached the maximum ...
0
votes
1answer
345 views

How can I disable local mail delivery in Centos? [closed]

I want to disable local mail on my Centos VPS because the I have a web form (on a website which is hosted by the VPS) which is delivering mail to the local mailbox rather than looking at MX records to ...
0
votes
2answers
455 views

High apache load but zero traffic

I have a problem with new server.. I use VPS Centos with 1GB of ram and I use wordpress CMS. The traffic <100 visitor/hour, but the apache have high load and make the server hang with zero free ...
-1
votes
3answers
1k views

I deleted /etc/passwd yesterday and I am having problems with SendMail today

So yesterday Webmin deleted my /etc/passwd and although it looks like everything is working, I can't get sendmail to work when used in a PHP script. Using mail() returns false, using PHPMailer ...
68
votes
5answers
60k views

“POSSIBLE BREAK-IN ATTEMPT!” in /var/log/secure — what does this mean?

I've got a CentOS 5.x box running on a VPS platform. My VPS host misinterpreted a support inquiry I had about connectivity and effectively flushed some iptables rules. This resulted in ssh listening ...
45
votes
8answers
82k views

How do I update a CentOS server's time from an authoritative time server?

I have CentOS machine and each time I've noticed that the server loses correct time after a while. It is usually behind by several minutes after time passes from having manually set the correct time. ...
12
votes
3answers
1k views

The A to Z of setting up a Linux box for secure local hosting

I am in the process of reinstalling the OS on a machine that will be used to host a couple of applications for our business. The applications will be local only; access from external clients will be ...
26
votes
5answers
10k views

Unusually high dentry cache usage

Problem A CentOS machine with kernel 2.6.32 and 128 GB physical RAM ran into trouble a few days ago. The responsible system administrator tells me that the PHP-FPM application was not responding to ...
14
votes
3answers
48k views

Opening up port 8080 in CentOS

I'm new to opening up ports in CentOS. I need to open up tcp port 8080 and have installed/ran nmap to find it is not open already. I've been reading about the iptables command, I have v1.3.5 installed ...
17
votes
1answer
41k views

MySQL [Warning] IP address could not be resolved

I'm running MySQL5.6.3 on a CentOS 6.1 virtual machine running on Windows XP in VirtualBox. The network card is configured in bridge mode, so my physical & virtual machines share the same ...
35
votes
4answers
72k views

how do you create an ssh key for another user?

I'm trying to create an ssh key for another user. I'm logged in as root. Can I just edit the files generated by ssh-keygen and change root to the user I want?
7
votes
9answers
6k views

Is there any decent repositories for CentOS or Fedora?

I'm known as a hater of RPM/Yum based OS, just because i think their lacking of decent package repositories (at least for recent software). While in Debian/Ubuntu, there are a lot of good ...
8
votes
3answers
41k views

How to find which script on my server is sending spam emails? [duplicate]

My server is sending the spam email and I am not able to find out which script is sending them. The emails were all from nobody@myhost so disabled from the cpanel that nobody should not be allowed ...
14
votes
2answers
27k views

Where route to 169.254.0.0 comes from?

Running CentOS 5.4 Why do I have route to 169.254.0.0 although it does not appear in Network > Ethernet Device > Route configuration dialog? Destination Gateway Genmask Flags ...
14
votes
9answers
35k views

CentOS 6 and locale error

I just installed CentOS 6 and whenever I login to the system via SSH remotely, I get the following error: -bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8) When I type "locale" on ...
5
votes
2answers
13k views

Stop DoS attacks with an IP tables rule?

I was wondering if I could prevent small (D)DoS attacks with a simple IP tables rule? By small I mean that they are flooding my web server with about 400+ requests from one or two IP addresses. I ...
12
votes
5answers
1k views

Linux with 256GB of mem / 48 Cores - Machine starts thrashing/choking with tons of memory left

Machine: Dell r815, CentOS 5.4, 256GB of RAM, 4 x 12 Cores. We have an application that has a 275GB file. It does an in place sort on 20GB of data at a time i.e. it swaps bits around and replaces ...
3
votes
2answers
18k views

CentOS Insufficient space in download directory /var/cache/yum/base/packages

I was trying to yum install libpcap when I got Error Downloading Packages: 14:libpcap-0.9.4-15.el5.i386: Insufficient space in download directory /var/cache/yum/base/packages * free 0 * ...
16
votes
3answers
40k views

Unable to remove user: “user is currently logged in”

When trying to remove the user, it returns "user is currently logged in". I already killed the user using pkill -KILL -u usernameHere and several other commands, but it does not help. How can I ...
16
votes
1answer
70k views

How to add user with SFTP/ FTP access to '/var/www/html/website_abc' folder on Amazon EC2 Centos?

Possible Duplicate: Linux directory permissions I'm working with some third-party developers and I would like to grant SFTP (or FTP) access to the root folder for a website they're working on ...
14
votes
4answers
49k views

Centos 7 save iptables settings

Problem: iptables resets to default settings after server reboot. I'm trying to set rule like this: iptables -I INPUT -p tcp --dport 3000 -j ACCEPT after that I do: service iptables save and it ...
11
votes
2answers
7k views

Mount --bind persistence over reboot

I'm having trouble finding an answer for this question Does mount --bind persist over reboot? On my CentOS it looks like it doesn't, so I've placed apropriate mount --bind calls in rc.local. How ...
8
votes
2answers
18k views

How to open port for a specific IP address with firewall-cmd on CentOS?

I would like to open port 4567 for the IP address 1.2.3.4 with the firewall-cmd command on a CentOS 7.1 server. How can I achieve this, as the documentation I could find was too specific on this?
26
votes
3answers
13k views

The XFS filesystem is broken in RHEL/CentOS 6.x - What can I do about it?

Recent versions of RHEL/CentOS (EL6) brought some interesting changes to the XFS filesystem I've depended on heavily for over a decade. I spent part of last summer chasing down an XFS sparse file ...
11
votes
5answers
46k views

How to monitor the hard disk status behind Dell PERC H710 Raid Controller with CentOS 6?

I have a Dell server running CentOS 6 using PERC H710 Raid Controller card with Raid 5 setup and I want to monitor the hard disk failure/working status behind the Raid Controller. Then I should be ...
8
votes
3answers
5k views

How can I create a swap partition on Amazon EC2 with ephemeral storage?

This is the output of df -k: Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvda1 10317860 7059008 2734732 73% / none 847584 0 ...
5
votes
5answers
10k views

Override DHCP hostname on RHEL5/CentOS/Amazon Linux

I'm running Amazon Linux (based on RHEL5) on EC2. I have my own domain name pointing to the instance's elastic IP. Amazon auto-assigns the instance a generic (and not visible on the Internet) ...
18
votes
3answers
3k views

useradd not encrypting passwords in /etc/shadow

I stumbled accross this problem when trying to create new FTP users for vsftpd. Upon creating a new user with the following command and attempting login with FileZilla, I would get an "incorrect ...
12
votes
4answers
33k views

In CentOS 6.x, how can I upgrade to Kernel 3.4?

I have a server running CentOS 6.2 with kernel version 2.6.32, but I need to increase my application Performance. The Kernel Version 3.4 has x32abi which can improve the performance so i want to ...
11
votes
3answers
6k views

LVM volume group shared between KVM/libvirt host and guests: is this a bad idea?

I have just built a shiny new KVM/libvirt-based virtual machine host, containing 4 SATA II hard drives, and running CentOS 5.5 x86_64. I have decided to create virtual machine disks as logical ...
10
votes
3answers
3k views

Timesync on HyperV with CentOS 6.2

I've got a CentOS VM (release 6.2) running under HyperV. I have integration services installed (part of base now), and CentOS shows the current clocksource is hyperv_clocksource, however my time in ...
10
votes
8answers
79k views

Can't start CentOS 7 “network” service

I Can't start CentOS 7 "network" service after disabling and removing "NetworkManager" service. When I check the network service status, it comes up with the following error: #systemctl status ...
9
votes
4answers
3k views

Puppetize everything or not?

Notice: there is a lot of theoretical questions. Recently I'm reading about Puppet (and similar systems), which - as I believe - can make my work easier, a lot. But I try - and unfortunately can't - ...
9
votes
2answers
21k views

What is the correct way to load modules for iptables on Centos 6

Where should I load iptables modules, for example ip_conntrack and ip_conntrack_ftp. Places I have found that might be candidates, but are they? The IPTABLES_MODULES variable in /etc/init.d/...
7
votes
1answer
2k views

Poor load balancer performance on rackspace and centos

I am load testing different options for load balancing, and am getting poor results from Nginx, haproxy, and varnish. I have one 4GB load balancer at Rackspace, hitting 4x1GB app servers. I'm ...
7
votes
3answers
12k views

What is the relation between NetworkManager and network service in Fedora/RHEL/Centos?

Hi I am new to Fedora/Centos/RHEL. I am confused about NetworkManager and network service in these Linux OS. May I know what is the relation between NetworkManager and network service? If I am using ...
6
votes
1answer
3k views

What is the recommended method to prepare Red Hat/CentOS 7 templates?

If I need to deploy Red Hat 7 from template, I would like to take the recommended steps to make my "golden image" clean. It should boot to the first boot prompt and guide the user through the typical ...
6
votes
5answers
20k views

VSFTPD 530 Login incorrect

I'm trying to get a vsftpd server set up on CentOS 5.3 x64. I'm not able to get any local user login's to work. Here is my vsftpd.conf: local_enable=YES write_enable=YES pam_service_name=vsftpd ...
4
votes
1answer
2k views

How to tweak Gnome user elevation in RHEL/CentOS

So I am attempting to tweak the way GNOME authenticates a desktop user for privileged applications. Out of the box it asks for the root password. For my deployment this is undesirable and I want it ...
4
votes
1answer
1k views

Setup default page for Apache Virtual Hosts

We are running Apache on a server with multiple VirtualHost entries. Whenever someone access the server by it's IP address (http://198.147.xx.xx), one of the websites that is a VirtualHost comes up. ...