server administration

  1. A

    Small Linux workgroup-related questions

    Hello, I do some volunteer job in educational institution in my country as a part-time system admin, both for experience and for pleasure. Currently we have a set of ~25 Centos 6 (partly v7) based workstations with some pretty 'strong' servers (16G RAM, 8 cores Xeon). I have a set of...
  2. Z

    snmp server not receives data

    Hello, I have a problem when using the snmp and the server receives data, The service is running correctly and the port is listening I do a snmpwalk -v 2c -c mycommunity (which is the same) and it answers me and a snmpwalk -v 2c -c mycommunity localhost and also, that is, the...
  3. junishpv

    Yum Update failing...

    Hi Guys, If anybody here to share some possible causes with this. I am working on my VM (VirtualBox), which is running with "CentOS Linux release 7.9.2009 (Core)". I have removed a couple of repos (doesn't require by the product I am testing with) manually from /etc/yum.repos.d to morning. Then...
  4. M

    disk space

    Hi All i am new to linux and i am learning it. i have a disk space issue on one server [root@server01 /]# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/sdb1 ext4 1000G 1000G 0 100% /data i have used the below syntax to get the files above 100M find /data -xdev -type f -size...
  5. BIgD63

    Failed updates

    Hello all, im new here and fairly new to Linux, i have a CentOS class under my belt and a little hands on experience, but i am running into things that i have no clue about all the time. All of our Linux variants are in AWS (if that matters), this questions is about Ubuntu, but we also have...
  6. P

    How to become a Junior Linux Administrator?

    Hello, I am a php programmer with 7 years of experience, but I would like to administer the linux system. Currently, I have about 200 configured servers behind me, but mainly a simple LAMP or LEMP, where I had to install, for example, ioncube loader. I configured apache, nginx, php-fpm...
  7. L

    Can i use a PXE Server without a build in DHCP ?

    Hi, I wanna setup an PXE Server in ym Network. In my network is allready a DHCP Server running and i dont wanna turn it off. So now i want to ask you, if it is possible to use the existing DHCP Server in the network and dont install one on the PXE Server. Thank You ! LinuxTux23
  8. H

    How to add DKIM and SPF records for your domain from Cpanel?

    It's easy, you can simply follow the Steps to add DKIM and SPF records in Cpanel: Go to your domain Cpanel and log in Navigate to the email section and find the Authentication option On the DKIM section, click the enable button. You can see to it that the DKIM option has been enabled. Click...
  9. Akshat Tripathi

    Dedicated vs Shared hosting.

    Which kind of hosting will you prefer and why?
  10. H

    How will you check and confirm that your server is using suPHP?

    It's very simple to verify this. Have a simple 'php info' script. Create a file named 'phpinfo.php' under the public_html of your domain Insert the following code: <? php phpinfo(); ?> Access the file in your browser using the link At the top section...