CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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2
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3answers
132 views

setting mysql root password in CentOS 7

How can I log into the mysql 5.6 command line client and reset the root password in Centos7? I read the following at this link, but it does not work: 1) sudo service mysqld stop 2) sudo service ...
2
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2answers
3k views

Installing Epel repository on CentOS fails

This has been working on my vagrant vm for a few month without any issues. I didn't change anything, it has been vagrant up and vagrant destroy'd several times before with no problems. But now it ...
1
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2answers
74 views

Running ubuntu binary on CentOS with all shared libs installed results in ld SIGSEGV

I'm trying to get a binary compiled on Ubuntu to run on CentOS 7 (both 64bit, one host, the other vm). So far I've copied the binary with all the shared libs. I no longer get the missing library ...
1
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2answers
932 views

How do I install Exim and Horde on Centos 7 with MariaDB 10?

I can't find a guide for this (they are old and don't work) and I can't seem to manage to install it. I can't install Postfix because of its dependencies, so I'm going with Exim, which I installed ...
0
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0answers
144 views

rtl8812au wireless driver installation on Centos 7

I have a fresh install of Cent OS 7 with the Gnome desktop environment. I have been trying to install rtl8812au wireless drivers found at https://github.com/gnab/rtl8812au for my Netgear A6100 WiFi ...
0
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2answers
42 views

moving a file to a folder with root privileges in CentOS 7

I am reading a tutorial that wants me to place a script file called script.sh into a folder called /etc/profile.d/. However, when I try to save the script.sh file in that directory, the gedit tool ...
0
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0answers
26 views

LAMP CentOS page/folder Outbound Inbound bandwidth monitor

I have a site, the server provide only allow 2000GB/month ($0.02/GB extra). I have monitor the bandwidth in my control panel, every day, i have about 12GB Inbound, but 100GB+ Outbound, a number very ...
3
votes
1answer
294 views

Windows boot option is missing after installing CentOS 7, how can I get it back?

I recently installed CentOS 7 on a machine that has been running Windows 7. I did a dual boot installation and installed CentOS in a partition. But when I boot up my machine, it only gives me two ...
4
votes
3answers
15k views

CentOS - install using yum Apache 2.4

I need Apache 2.4 in CentOS because with Apache 2.2 mod_proxy_wstunnel is not possible. I have tried https://fedorahosted.org/SoftwareCollections/ but unfortunately its for RHEL after installing i ...
4
votes
1answer
419 views

lshw lists my drive but it has no /dev file

Ive just got a dedicated server which has 2x 1TB HDD. However when I type df -h I get the following: [root@sd-56537 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 916G ...
1
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2answers
3k views

Use inotifywait to move file when it loads in dropbox folder

I'm trying to find a way to immediately move a file to another folder as soon as it appears in my dropbox on CentOS. I have scoured the internet for some clues but I can't get any further than the ...
1
vote
1answer
47 views

no pwm-capable sensor modules installed on MSI B75MA-P45

I am using a MSI B75MA-P45 motherboard on Centos 6 and my CPU fan is currently stuck at 100%. I can see RPM of the fan and temperature inside my BIOS however when I run sensors-detect I only see CPU ...
0
votes
1answer
688 views

Nslookup: command not found error on RHEL/CentOS 7

During linux installation I selected "minimal" option: When I went to run the nslookup command to look up an IP address I got the error message nslookup: command not found as shown in the example ...
5
votes
2answers
2k views

Equivalent of update-grub for RHEL/Fedora/CentOS systems?

In Ubuntu (and I guess in Debian too) there is a system script named update-grub which automatically executes grub-mkconfig -o with the correct path for the grub configuration file. Is there any ...
0
votes
1answer
32 views

linux boot stick being ignored on windows 7

I am trying to install CentOS server on a machine that also runs Windows 7. Towards this end: 1.) I created a 100GB "Unallocated" partition using the Disk Management tool in windows 7. 2.) I ...
0
votes
1answer
58 views

Editing lines in a file using a bash script?

I am creating a bash script that installed VSFTPD / FTP. After the installation some configuration is required in the "/etc/vsftpd/vsftpd.conf" file. This includes making sure the following lines are ...
0
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0answers
21 views

Strange behaviour of application running from NFS

I have two VMs running, one with Fedora 20 and the other with CentOS 6.6. I have a remove home directory mounted under /home1/user with autofs. /etc/auto.home1: user -fstype=nfs ...
0
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0answers
51 views

wget stops downloading: Cannot write to `-' (success)

Please have in mind that I don't know anything about this, nor any of its vocabulary, I am a simple web coder, trying to figure my way on the universe! I'm trying to link dropbox on my server, I am ...
0
votes
1answer
3k views

How to remove Oracle Wallet using orapki?

Hi i'm on Centos using oracle 11g And i've created a wallet using : $ orapki wallet create -wallet /u01/app/oracle/admin/DB11G/wallet -pwd WalletPasswd123 -auto_login Now i want to remove it to ...
0
votes
1answer
472 views

Can't yum WINE from repo - No package wine available

I'm trying to install WINE on Centos 5.10 as per some instructions I wrote last year using this instruction: # yum install wine However when run, it can't find any package under that name: # yum ...
1
vote
1answer
63 views

ifconfig command showing internal ip address

I'm using centOS 6.3 on virtualbox as guest OS on Win 7 host. My problem is when I use ifconfig command in terminal, I'm being thrown internal IP address(10.x.x.x). However, when I googled "my IP ...
2
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0answers
31 views

VPN tunnel to two services on two servers?

I've got 2 CentOS 6.5 servers, each running one service: server A: 10.140.54.1/27 running service MySQL port 3306 server B: 10.140.54.2/27 running service httpd port 443 Server B's httpd service ...
16
votes
4answers
34k views

Why the default eth0 interface is down by default on CentOS?

I am already a little bit familiar with Linux distros like Debian or Ubuntu (yeah, very similar) but I wanted to try Red Hat based - CentOS 6.2 . I have installed it on my Windows 7 host in virtualBox ...
1
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2answers
69 views

Enable ssh root login

I have access to a CentOS server with a user that its not root but belongs to the sudoers list. I do not have the password of root, nor I can't find out what it is (policies of the people who gave me ...
1
vote
2answers
71 views

CentOS 7 hostname will not change

I have two CentOS 7 VM's running in virtualbox. On each of the machines I want to set the hostname and a static IP address. VM1 works just fine. VM2 does not. I did the same thing on both servers so ...
0
votes
1answer
374 views

gpg-agent fail: undefined symbol gpg_err_set_errno

We started to get some odd issues yesterday; possible due to a yum install gone bad? One of the issues, PS -ef hanging indefinately (actually an ps command that looks at other user state) was fixed ...
0
votes
1answer
139 views

What software should I use to create a HPC (High performance compute) cluster with CentOS 6.5 VMs locally?

I've read about Torque, Slurm resource managers and Maui, Open Grid scheduler, Sonf of Grid Engine but I do not know which is more appropriate to use in a local environment? I've also read that I need ...
2
votes
7answers
43k views

yum update fails: Error: Cannot retrieve repository metadata (repomd.xml) for repository …

I'm using CentOS 6.3. When I try to update my system with yum I have this message: yum update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.ircam.fr * ...
2
votes
0answers
54 views

How does ldap work on a client?

This is on CentOS I read the various openldap howto's, they mention /etc/openldap/ldap.conf and editing /etc/nsswitch.conf for example: ...
2
votes
3answers
60 views

How to list packages with files in a particular directory?

I'm switching to CentOS from another distribution, and I'm not used to working with yum. I'd like to know if there's a way to know which installed packages have files in a directory. For example I'd ...
0
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0answers
57 views

How do I set up a secure Samba share on CentOS 7?

I want to set up secured Samba shares so I can connect different users on the same computer to their own separate shares. I'll use a script to discover the user's credentials then run mount -t cifs ...
1
vote
2answers
100 views

Can't start systemd user instance

I'm using CentOS 7, and am trying to create a systemd service for my local user. However, before I can do that, I need my systemd user instance, which I cannot find or create to begin with. Running ...
1
vote
3answers
294 views

Taking away a User's Read/Write/Execute Permission

So I have a user that is able to go in /etc and read files like httpd.conf. I would like to deny that user access to any critical locations such as /etc, /var and so on. What would be the best way ...
4
votes
1answer
414 views

Windows Changes File Permissions in Samba File Shares

I have mounted an external USB drive that is used for file shares on CentOS. All of the clients access the shares are Windows XP or 7. Within Windows, I use the "Manage your credentials" feature in ...
0
votes
2answers
662 views

Why can't I access to my ftp server with my local user account?

First of all I'm using Centos 6 server, putty and wordpress.org I followed the instructions from this link to set up vsftpd and ftp in centos server. For the vsftpd.conf file, these were the changes ...
1
vote
1answer
85 views

Telnet session closed by foreign host

I'm trying to telnet to imap-mail.outlook.com on port 993. When I connect to it, I get Trying 157.56.195.250... Connected to imap-mail.outlook.com. Escape character is '^]'. And I can enter a ...
2
votes
1answer
883 views

I cant save files in /var/www/html

I'm running Centos 6.5 and I'm having problems saving my files to /var/www/html. The folder currently belongs to root and I have gone through everything from SELinux to configuration procedures, but ...
0
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0answers
16 views

How do I get debug information from rsyslog?

I followed the directions from: http://www.rsyslog.com/doc/debug.html I put the following in /etc/rsyslog.conf: $DebugLevel 2 $DebugFile /root/RSYSLOG.txt then I try: kill -USR1 `cat ...
1
vote
1answer
58 views

HTTPS won't run. (CentOS) [closed]

I've installed my SSL using the following guide as I would usually with other servers: http://wiki.centos.org/HowTos/Https However when I run httpd and try to connect using https it doesn't work. I ...
1
vote
2answers
62 views

Package installed and not installed at the same time

Sometime ago I tried to install Steam on my CentOS 5 server and tried almost everything I found on Internet and it seems that I have been able to leave libstdc++ installed and not installed at the ...
3
votes
2answers
3k views

Yum update error: “can't start new thread”

I found several posts on this, but none of them work. When I do yum update, I get the error thread.error: can't start new thread; full stacktrace follows: [root@ripper234 ~]# yum update Loaded ...
1
vote
1answer
156 views

Different package versions in different repositories

Following the advise on Using Awesome window manager on CentOS 7, I installed the fedora 19 repository so I could get Awesome working on CentOS7. However, when I run yum update, I am getting this ...
1
vote
2answers
925 views

Using Awesome window manager on CentOS 7

Awesome works fine on Fedora 19, so it should work on CentOS 7, right? Well, I tried and failed to get it to work. After a long time, I managed to compile it from source and set GDM to boot from an ...
1
vote
3answers
2k views

Apache Tomcat not working

I am a Linux beginner and have CentOS 6.4 installed on VMware. Recently installed Java SE8 and Apache Tomcat server but I cant't connect to the server by using `localhost:8080' browser says Unable to ...
1
vote
1answer
59 views

rsyslog: how do I set up remote logging?

I am simply trying to set up a remote logging system. I think my setup is correct but it fails and I can't get any messages from rsyslog to show up in the logs, so I can't find out why. My iptables ...
3
votes
2answers
1k views

What does eno mean in network interface name 'eno16777736' for CentOS 7 or RHEL 7?

Under consistent network device naming scheme, what does 'eno' stand for in network interface name 'eno16777736' for CentOS 7 or RHEL 7?
0
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0answers
27 views

Accessing CentOS7 server from public

recently I switched to CentOS 7 OS and set up basic webserver with Apache. I had no problems configuring SSH, FTP and LAN access to the webpage. But accessing from other IP's won't work. I'm 99% sure ...
3
votes
1answer
967 views

What's wrong with this udev rule?

I'm reading through this link in trying to make the appropriate rule to make the BSG device nodes have group ownership of wheel and permissions of 0660. This is the rule that I have: [user@mylinux ...
0
votes
0answers
16 views

Asus T101 Touchscreen Not Recognized

I'm running CentOS 6.6 x86 on an ASUS T101-MT which originally came with Windows 7... Is there a way to get the touchscreen to work? I couldn't find any answers for this online and everyone seems to ...
1
vote
1answer
42 views

scp a file from one server to another one, got “permission denied”

source server IP 162.244.xxx.xxx file -rwxrwxr-x 1 user1 admin 36005278 Sep 10 2013 filename.tar at destination server scp user1@162.244.XXX.XXX:home/filename.tar ./ got a Permission ...