Questions specific to the CentOS Linux distribution. Use this tag if your question relates to how the CentOS distribution affects your problem; do not use it if you just happen to be using CentOS and your question is about a specific configuration detail or syntax.

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0answers
13 views

Extending XFS filesystem CentOS 7 Google Cloud

I have Googled everything, and literally nothing is working. Here is df -h: Filesystem Size Used Avail Use% Mounted on /dev/sda1 10G 7.7G 2.4G 77% / devtmpfs 103G 0 103G ...
0
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0answers
13 views

NetBeans 8.1 installer stuck on 64-bit RHEL 7

This is CentOS 7 running in Docker. Silent install doesn't show anything in /tmp/state.xml. When I remove silent install and enable X11 for the installer Window, I can see that the installer is stuck ...
1
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1answer
24 views

Wireless Kernel Module Not Loaded

I did a CentOS 7 x86_64 minimal install on my computer with an AMD x64 processor. I am now attempting to set up WIFI. The wireless driver iwl4965 from here is installed but is not showing as being ...
3
votes
2answers
70 views

How to detect / prevent systemd network startup failures

Using Centos 7 (most recent updates), on a remote firewall machine that is 200 miles away, I have occasional difficulty on reboot with the network stack not properly starting up. The box has 3 ...
0
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0answers
18 views

zopfli --i1000 all css, js files in a directory and sub directorys

My servers OS is CentOS, with Nginx. I've enabled Gzip_Static_Module for nginx. Now after update of a website I need to gzip all the js, css files. Is there a way to search a dir like /home/user/...
0
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0answers
43 views

CVE-2016-3710 mitigation in CentOS 7

I have a box running CentOS 7 for KVM virtualization purposes. What is proper steps to mitigate CVE-2016-3710 in my OS? $ rpm -qa --changelog qemu | grep CVE-2016-3710 shows nothing. Current ...
1
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0answers
36 views

Email not received with mail command from terminal in CentOS

I am trying to send mail with the following command: echo "Hello" | mail -s "Hello" myaddr@mydomain.com and than checking the exit status as: echo $? which outputs 0 Of course myaddr and ...
4
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0answers
83 views

TC (Traffic Control) to control bandwidth

I'm having an issue with a bandwidth script that I've been using for a while to limit the outgoing bandwidth on a port. It worked fine at the beginning until I wanted to change the outgoing port ...
0
votes
1answer
15 views

Using autojump on Centos Linux with zsh gives error?

On Centos Linux, switching to zsh causes autojump to give me this error: -bash-4.2$ zsh /etc/profile.d/autojump.bash:13: command not found: complete How to fix it?
0
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0answers
12 views

Samba share not working on second hard drive

I have a centos7 file server with a samba share on the main drive and this is working fine. However I have tried to add a share on a second drive with the same setting but machines on the network are ...
-1
votes
2answers
34 views

I cannnot find ssl.conf for TLS1.2 install

I have a dedicated server with CENTOS 6.7, Apache/2.4.20 php 7 and i want to enable TLS1.2 for paypal payments. From this I understand that i need to add extra lines in ssl.conf I looked for it in /...
0
votes
0answers
173 views

smbclient authentication on CentOS 7.2.1511

I'm trying to use smbclient to display all the available shares on a server. It was working perfectly well with ubuntu 14.04 but I am getting a few error on CentOS . Here is what I am getting : # ...
0
votes
2answers
38 views

centos7 terminal can't have image as background?

I previously used ubuntu, I can set a image as my terminal background. Yet, in centos 7, I don't see a place for setting image as the terminal background. What can I do to achieve this? It's ...
0
votes
1answer
123 views

Can't update OpenSSL on Centos 6.4

I've got a Centos 6.4 system that I'm trying to patch OpenSSL for. Currently, yum reports "1.0.1e-16.el6_5.4" and openssl version shows "1.0.1e-fips". On my Ubuntu machines, I was able to update ...
2
votes
1answer
96 views

CentOS vmtoolsd usage 100%

I am new to CentOS and VirtualBox. I installed CentOS 7 on VirtualBox but see the CPU usage at 100% by vmtoolsd. I tried multiple ways to bring it down e.g. by doing "lodctr /R" and removing open-...
2
votes
2answers
90 views

Malicious processes open connections to China

I recently started migrating some of my company's servers to Google's compute engine. Among other things I set up a 2-node elasticsearch cluster. Today I run top command on one of the nodes and I ...
3
votes
1answer
44 views

Automating Master/Master replication setup and configuration on two servers

I'm in the middle of writing a script to automate configuring MySQL replication between two servers (Master/Master replication), and was looking for some advice on a few things related to MySQL. The ...
0
votes
0answers
56 views

OpenLDAP 2.4: How to correctly implement TLS (ldaps) on CentOS 6.7

My environment: CentOS 6.7 / OpenDLAP 2.4 slapd -VV @(#) $OpenLDAP: slapd 2.4.40 (Nov 10 2015 09:41:16) $ mockbuild@c6b8.bsys.dev.centos.org:/builddir/build/BUILD/openldap-2.4.40/openldap-2....
0
votes
1answer
57 views

Best Graphics over X11 Forwarding

I am currently using Exceed to handle individual X windows being displayed back to my Windows machine and this works flawlessly. I'm using Windows as my Window manager, but I have also experimented ...
0
votes
0answers
37 views

Restrict Users to their home directory

I use WebMin/ProFTPD on my CentOS7 VPS. I already checked the proftpd.conf and it contains the line: DefaultRoot ~ !adm But when I create a new user they can access all on the server from the root. ...
0
votes
1answer
38 views

Cannot Install Cent OS 7

i'm having extreme difficulty trying to install CentOS 7 on a HP Z640 Workstation, Specs http://www8.hp.com/h20195/v2/GetPDF.aspx/c04400040.pdf I have tried installing CentOS 7 and 6.7 in UEFI and ...
3
votes
1answer
177 views

Native sendmail commands to operate the mail queue?

I'm on a CentOS 7 server that runs sendmail and unfortunately I'm not allowed to install new packages. Postfix tools are not installed; AFAIK the only tool available is mailq, that permits only to see ...
0
votes
1answer
23 views

Missing NIC in CentOS 5 - AsteriskNow 1.7.1

So I have two nics, but I can't get the second to load, here is the output from lspci -vvv 04:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection Subsystem: Super ...
0
votes
2answers
20 views

HW Raid - Centos 5 - Boot Issues

I am totally lost as to how to fix this or what to do, I am about to just removed the raid all together. (Work stuff though, so Id rather not)\ I have a tower with 4 drives in it. 2 seperate raids ...
0
votes
1answer
17 views

How to configure a package in CentOS?

I tried to configure a package with: OdaOda:~/src/ngx_openresty-1.7.10.2$ ./configure --with-luajit After that, I get an error: platform: linux (linux) No gmake nor make found in PATH.
1
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0answers
43 views

How to receive files via bluetooth in Centos?

I've read the GNOME Help for Centos 7 in order to receive files from my phone via bluetooth. It suggests me to enable Bluetooth Sharing in Settings → Sharing, and switch Save Received Files to ...
0
votes
0answers
18 views

Upgrading postgresql to 9.3 on a CentOS 7 machine

I've recently rented a machine, with CentOS 7, to use for a Nominatim server. I've managed to correctly install Nominatim on the machine, with the instructions from the site, it works correctly, but ...
1
vote
1answer
20 views

Why Lapis does not work?

I have installed Lapis framework using command: luarocks install lapis --local It gave me success installation: Updating manifest for /home/Oman/.luarocks/lib/luarocks/rocks lapis 1.5.0-2 is now ...
2
votes
1answer
46 views

How can I install a local RPM using only the local dependency RPM files?

In my CentOS machine (VirtualBox VM, altough I assume this shouldn't matter), I have a directory including an RPM file and all of its dependency RPM files. I want to install the RPM along with all of ...
1
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0answers
47 views

YUM: updating repo's GPG key

Haven't found the answer for this in docs: how often Yum refreshes the GPG key of a repo, if it was obtained from the net? For instance, I've got this repo config: [myrepo] name=myrepo baseurl=http:/...
1
vote
1answer
36 views

CentOS 6 in VMWare fusion: Unexpected MAC address change

I installed CentOS 6.X with VMWare Fusion. It looks like the mac address and nic names changes randomly. eth8 and eth9, totally weird. Anyone know why? P.S VMWare pops a dialog asks me if I ...
0
votes
1answer
25 views

Adding 2 HDDs as mirroning on existing OS (centos)

I have a NAS with 2 x 1TB HDDs and I added two new HDD-s: Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes ...
1
vote
3answers
72 views

log connection attempts from an IP blocked by iptables

I blocked an abusive IP from a CentOS server using iptables, dropping all connection attempts on all services / ports. As is the way of things, the server with this IP may have been part of a botnet, ...
0
votes
0answers
22 views

tshark : ***MEMORY-ERROR***: [6265]: GSlice: assertion failed: sinfo->n_allocated > 0

i have wireshark-1.10.14-7.el7.x86_64 installed when i run tshark i get the error after about 15 to 20 seconds.It works only for few seconds and throws error There is a red hat Bug 1176967 but to see ...
-2
votes
2answers
51 views

Why does running a Cron Job as root stop the sshd service and disallows login for other users?

I have a script for getting Clamav updates from another server which I run as a Cron job as root. Also, I have root login disabled for /sbin/nologin. But this has serious implications on the system as ...
0
votes
1answer
19 views

Server Upgrade from CENT OS 4 to 6

I will be updating my server since CENTOS 4.x is not supported long time ago. I really don't have any idea how to proceed and I have been searching how, but I can not understand since It is ...
4
votes
1answer
44 views

Unable to get sudo lecture working on CentOS 7 server

I'm trying to enable the sudo lecture every time someone executes sudo, but I can't seem to get it working at all. I found a similar question here, in which someone states that if you don't see any ...
0
votes
1answer
41 views

NS-3.25 PyViz visualizer install on CentOS 6.5

I'm installing Network Simulator 3.25 on a CentOS 6.5 machine. In my environment I cannot use any repository, every single packet have to be downloaded from a machine and then transferred to the ...
1
vote
2answers
118 views

yum install always fails with the error in CentOS 7

404 Errors: [Errno -1] Metadata file does not match checksum Trying other mirror. [Errno 14] HTTP Error 403 - Forbidden I tried: rm -fr /var/cache/yum/* yum clean all yum clean all && yum ...
3
votes
1answer
63 views

How to identify & kill runaway processes that runs, exits, then runs again?

Question How can I identify a program caught in an endless loop; where it runs, dies, then runs again? How can I kill it and prevent it from starting again - is reinstalling the package the only way? ...
2
votes
1answer
26 views

CentOS requires root pw for network pref changes

Why does CentOS require root privileges to configure the preference panels? It seems like sudoer access really should be sufficient for this. Is it possible to change this?
0
votes
2answers
88 views

Why did sudo not work in CentOS? [duplicate]

I am using Centos and want to use sudo command to run as root. But after input the root password, it always prompt to ask me input the password again. I am pretty sure the password is correct since I ...
1
vote
0answers
47 views

Can't get usb ethernet adapter running under CentOS 6 minimal

I have a cheap usb adapter and using it on a minmal CentOS 6.7 box, when I plug in the adapter it's recognized as usb device but not as ethernet adapter, although I've loaded these kernel modules: ...
0
votes
1answer
75 views

rsyslog not forwarding messages to remote rsyslog server

I'm debugging a strange issue with a logging SaaS solution. We appear to be duplicating logs sent to the SaaS. Logs are sent via an rsyslog forwarder over TLS. I'm trying to see if I can reproduce the ...
0
votes
1answer
38 views

Centos VMWare backup emergency mode password reset

I have recently backed up my remote virtual machine and downloaded the data into my local. I did the setup on my local with VMware workstation and tried starting the server. I realized I missed ...
0
votes
0answers
42 views

permission denied, cannot list files within a folder

I have a folder like: drwx--xrwx 9 user group 4096 May 1 11:17 160429_ST-E00110_0195_AHMFVNCCXX However my user other can't do ls: -bash-4.1$ ls 160429_ST-E00110_0195_AHMFVNCCXX ls: cannot open ...
0
votes
1answer
26 views

AIX lquerypv equivalent in Linux (RHEL/Cent OS)

In AIX we can view raw data of hdisk by issuing following comamand lquerypv -h /dev/hdisk0 This displays data in hexa decimal format. More of like hex editor. What is the equivalent command in ...
2
votes
1answer
486 views

can not install mysql-server on centos 6.7 32bit . Error: need rpm?

when I try to install mysql-server on centos with this command: yum install mysql-server server replies: Loaded plugins: fastestmirror, security Setting up Install Process Loading mirror speeds ...
1
vote
1answer
25 views

SSLSNIFF on CentOS 7

I tried to install sslsniff 0.8 on CentOS 7 but I can't install the following dependencies since they can't be found when I execute the "yum" command: libboost1.35-dev, libboost-filesystem1.35-dev, ...
0
votes
0answers
21 views

Can't login after changing username in Webmin

After installing Webmin on my CentOS machine, I changed the root user to root2 using the Webmin interface (Users and Groups module). Now I can't login to Webmin either as root or as root2. How can I ...