What are /r/CentOS's favorite Products & Services?

From 3.5 billion Reddit comments

The port forwarding should only be done if you are behind a (NAT) gateway, like your home router. In this case you should do this at the (NAT) gateway.

If you already have a public IP address (e.g. hosted in a datacenter) you can open up ports in your firewall using this FirewallD tutorial at Digital Ocean. It basically boils down to running firewall-cmd --add-port=<PORT>/<PROTO> to open it up now followed by a firewall-cmd --add-port=<PORT>/<PROTO> --permanent if you want to persist it across a reboot. The ports that you should open up are listed on your link, as are the protocols (either TCP or UDP).

My first suggestion would be to add the epel repo to your repository list for extra packages beyond the base CentOS 7 repositories.

To do that just use yum to gain the repo list by the following:

yum install epel-release

From there update your system to the current versions (if necessary):

yum update

After that I think you'll need to see what is provided from that point. I show that php-composer is available through epel along with the 'composer' framework for php:

Package Arch Version Repository Size =========================================

composer noarch 1.2.0-1.el7 epel 349 k php-composer-ca-bundle noarch 1.0.2-1.el7 epel 12 k php-composer-semver noarch 1.4.1-1.el7 epel 17 k php-composer-spdx-licenses noarch 1.1.4-1.el7 epel 15 k

As for the firewall-cmd information, I (like yourself), am way more familiar with iptables. You can change the CentOS 7 default firewalling from that and revert to iptables by following this document: Change from firewalld to iptables on CentOS 7. If you are still wanting to learn the new firewalld command structure you can find some introductory information here.

As for the oracle java versus the openjdk versions I don't think there is a repository directly available for CentOS. You may need to do that manually but I would use the following command to ensure yum is aware of the changes:

yum localinstall <package.rpm>

That way the yum database is updated with the changes. Just a particular thing I use for tidyness.

With Windows you pretty much get one filesystem, NTFS. With Linux (CentOS and Ubuntu are Linux based distributions) you can use various filesystems. However, the current default for both is Ext3/4. They do not need disk maintenance as a general rule. HTG Explains: Why Linux Doesn’t Need Defragmenting should help understand why.

HTH

I haven't tried on cent7 yet and am not near a computer, but this is required for systemd on arch:

http://superuser.com/questions/278396/systemd-does-not-run-etc-rc-local

I'm a little surprised if RedHat didn't include this for compatibility reasons but then again they switched to systemd.

> where as you have to manually configure hosts.deny.

He's talking about DenyHosts, which is a log-monitoring active-response system like Fail2Ban.

Security is all about layers. Firewalling and intrusion-detection are not mutually-exclusive and both have a place in a properly-managed environment.

Completed my RHCSA with https://www.amazon.com/RHCSA-Red-Hat-Enterprise-Linux-ebook/dp/B0849V5ZBY/ref=sr_1_1 alone. Good book.

You want to add a VPN server to your laptop, so your phone can connect to it? Weird, but okay.

Set up OpenVPN as a server on your laptop. - https://www.howtoforge.com/tutorial/how-to-install-openvpn-on-centos-7/

Install OpenVPN from the playstore on your android - https://play.google.com/store/apps/details?id=net.openvpn.openvpn&amp;hl=en

In order to ssh to your Pi by hostname, you either need to add an entry in your Windows hosts file (I see you're using PuTTY), or you need to set up an internal DNS server. Internal DNS is easy to set up with BIND, but for now, you may want to first use the hosts file.

If you try to ssh to username@myhostname, Windows will first try to resolve myhostname by hosts file, then DNS. When it's unable to do so, because there's no hosts or DNS entry, it will fail.

A guide for editing hosts files.

A guide for configuring BIND on CentOS 7. Note that this is more complicated, but is definitely something you want to keep in mind. Using the hosts file is a quick cheat versus implementing DNS.

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-remote-access-for-the-gnome-desktop-on-centos-7

This guide is easier and heplfull. And you should use id while connect to vnc server like this eg: vnc://10.0.0.10:1

CWP isn't CentOS. To quote centbot in the #centos Freenode IRC channel:

> The product known as 'CentOS Web Panel' is not associated with the CentOS Project, nor is it recommended for use by this channel or the CentOS Project. Additionally there is a concern of possible Rights Infringement by the non-authorized use of the CentOS Marks. Users are strongly cautioned against the use of the product.

If you insist on using it, it seems they sell support for it.

http://centos-webpanel.com/support-services

Never. I have yet to see a compatibility issue with CentOS, although a lot of obscure scientific software comes close (lots of horrifyingly bad C++/Python 2 stuff out there).

Worst case scenario, you can use tools like Nix and EasyBuild to mimic any build/runtime environment and get stuff compiled wherever. There's also stuff like Docker containers too, but that doesn't quite qualify as "compatibility" in my book.

What iso are you using? I go to a CentOS mirror and for example put the latest 64 bit iso on a usb stick, boot from it, and use the URL to finish the download and install. If you have a linux machine already, you can just use DD to copy the iso directly to the USB stick.

You can manage libvirtd remotely from another machine with virt-manager. This is an older doc, but it's the first one I found on Google. There may be newer, more convenient mechanisms.

http://www.centos.org/docs/5/html/5.2/Virtualization/sect-Virtualization-Remote_management_of_virtualized_guests-Remote_management_with_ssh.html

I'm having the exact same issue and can't get it figured out.

Just found this. I haven't tried it, but I will once I'm home. http://superuser.com/questions/618068/plex-installed-on-centos-404-when-navigating-to-url

They both are open source but controlled and managed differently as open source projects. Oracle is notoriously anti-open source and some people don't like supporting Oracle by using their products. See for your self MariaDB

Also MariaDB has a more aggressive development cycle when it comes to features and or implementing suggestions on improvement. Oracle for the most part (from what i have heard) is not that responsive to the non-paying community.

There is no reason at all to use MySQL versus MariaDB for anything other than vendor specific requirements usually dictated by companies in bed with Oracle.

I use Jetbrains IDEs myself, but I can take advantage of their education program and my work is not commercial.

I don't personally do C++, but I use their IDEs for Java and Python and frankly, I love them for that. Their stuff seems consistent enough with each other that I would expect CLion to be more of the same.

In the past when I had to touch C++, vim was all I needed and similarly, if I don't actually need IDE features, an editor like Atom does the job if I'm not in the mood to use vim.

What version of CentOS are you trying to install? What are the Display/Graphics setting you are using in VB? Why such an old version of VB? 6.1.6 is the current Linux release.

Hmm unfortunately I'm not very familiar with firewalld

I found this article which might be of some help

https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-7

Perhaps you don't have all the required fuse-related RPMs installed? I mainly use fuse-sshfs and this is what I've got on CentOS 8, where it's working fine:

[root@el8 ~]# cat /etc/redhat-release  
CentOS Linux release 8.3.2011

[root@el8 ~]# rpm -qa|grep fuse|sort
fuse-2.9.7-12.el8.x86_64
fuse3-libs-3.2.1-12.el8.x86_64
fuse-common-3.2.1-12.el8.x86_64
fuse-libs-2.9.7-12.el8.x86_64
fuse-overlayfs-1.1.2-3.module_el8.3.0+507+aa0970ae.x86_64
fuse-sshfs-2.10-1.el8.x86_64

[root@el8 ~]# systemctl status sys-fs-fuse-connections.mount
● sys-fs-fuse-connections.mount - FUSE Control File System
  Loaded: loaded (/usr/lib/systemd/system/sys-fs-fuse-connections.mount; static; vendor preset: disabled)
  Active: active (mounted) since Mon 2020-12-07 17:30:50 -05; 4 weeks 2 days ago
   Where: /sys/fs/fuse/connections
    What: fusectl
    Docs: https://www.kernel.org/doc/Documentation/filesystems/fuse.txt
          https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
   Tasks: 0 (limit: 49775)
  Memory: 220.0K
  CGroup: /system.slice/sys-fs-fuse-connections.mount

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

[root@el8 ~]# LC_ALL=C ls -la /sys/fs/fuse                   
total 0
drwxr-xr-x 3 root root 0 Dec  7 17:30 .
drwxr-xr-x 7 root root 0 Dec  7 17:30 ..
drwxr-xr-x 3 root root 0 Dec  7 17:30 connections

It probably isn’t feasible to install CentOS on your router unless you really know what you’re doing.

However, you might want to look into OpenWRT, as it’s targeted at people who want to run an open-source Linux OS on their routers. Check to see if your device is on the compatibility list.

Make sure you have a backup plan for internet in case you accidentally brick the thing. Good luck!

It sounds like you are logging into the text console (not the graphical login).

One easy solution is to run tmux or screen as a terminal multiplexer. That way you aren’t limited by the virtual terminal’s history.

A lot of people are asking about whether you are logged in with the GUI. If you had X windows up and running, you would have several terminal emulators (e.g. xterm, gnome-terminal, kconsole, rxvt) that have fairly customizable buffer length.

The reason why we are suggesting the graphical console tools is because changing the frame buffer settings is somewhat complex.

The kernel CentOS distributes is heavily patched and maintained by Red Hat. They’re maintaining a stable ABI and that was first introduced with the introduction of RHEL 8.0. They pull fixes occasionally from the mainline kernel tree but this is their kernel and the kernel-lt is a completely different porting effort.

The 4.19 kernel support as a long term release goes End Of Life December, 2020, but Red Hat will support their kernel until at least 2029.

To be clear I'm not an expert, but I feel that SELinux gives you more protection for programs you pull from the internet and download. For example, I run https://foldingathome.org/ and pulled it from their site and ran it. Because OpenSUSE doesn't have an AppArmor profile for it, I'd have to create the profile. That process isn't too hard, but it can be a little frustrating if you aren't an expert. I've done it with the Dropbox app, and I'm always having to update the profile. To be fair, that's probably because I don't fully know what I'm doing and I didn't create some wildcard expression correctly. When I put Folding@Home on my CentOS box, it was automatically constrained by a system context already built into Red Hat systems. I didn't have to do anything. Looking at the SELinux rules for Folding@Home gave me the opportunity to see SELinux in action. What the SELinux and Red Hat folks have done is create a framework that is highly flexible and constrained at the same time. I don't think AppArmor can do that because it's always tied to an executable. If I don't have a profile for that executable my system is vulnerable. Of course, bad administration and bad SELinux programming can create vulnerabilities. But the framework and process has been heavily tested on RHEL and it works very well to constrain stuff with minimal effort on an admin's part.

Is your DHCP service distributing hostnames to clients on the domain in question? If so, have a look at this (not the accepted answer though, hideously kludgey):

http://serverfault.com/questions/206989/override-dhcp-hostname-on-rhel5-centos-amazon-linux

Yes, you can use the configuration in my last reply. You'll need to substitute your MAC address and interface name.

Also, if you're using Virtualbox, make sure your VM NIC is in bridged mode. See below.

https://www.virtualbox.org/manual/ch06.html

Reddit tip: fence single lines of text with ` to have a code snippet

indent a block of text with exactly 4 spaces (more if you need indentations) with an empty line between it and other sections of the comment for a code block

What happened there is reddit is using a subset of markdown for comment formatting. In markdown, hash symbols on the front of a line have special meaning

-SOLVED-

I have found a new way of installing it by using Linux Game Server Manager

IT IS A LIFESAVER!!

If you need to host ARK or mostly any Game Server on your own VDS/VM/Virtual Server with ZERO Linux experience such as myself. the site tells you how to install it, and then use it to install other mods. Highly recommend using Ubuntu LTS 18.0.4 though. Thank you to everyone who tried to help me.

&#x200B;

Since I struggled to find a solution: I added this comment in case someone googles similar terms in the future, and possibly stumbled across this thread for guidance to spare them the headaches.

&#x200B;

• Also "Failed to set thread priority" from steamcmd doesnt matter, disregard it. everything works and i still get that everytime steamcmd is used.

You want to configure vnc and ssh with port forwarding, then tunnel vnc over ssh to keep things secure. Here's a tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-remote-access-for-the-gnome-desktop-on-centos-7

dd is going to cache the file you're writing either way and I just checked the man pages I don't think you know what you're talking about. http://www.gnu.org/software/coreutils/manual/html_node/dd-invocation.html#dd-invocation

The snap store( https://snapcraft.io/store ) will give u a point and click software. Snaps are cross-platform and should come with all their needed dependencies. I know pycharm has a snap. Davinci resolve, on the other hand, does not. If you decide to go back to mint or another Debian-based distro you can install Resolve pretty easily/safely with https://www.danieltufvesson.com/makeresolvedeb I installed my resolve that way on Ubuntu and it runs great.

I just finished doing this not too long ago. I used LiLi to create the bootable usb, which should be very straight forward--just work in order from the top panel to the bottom. Of course you will need an image of the CentOS you want to run (used for LiLi step 2). I used the 'everything' iso from centOS.org - roughly 7.4GB, so make sure it will fit on your flash drive. I chose to format my flash drive in LiLi to ensure no other files would interfere with the installation.

It sounds like your issue might not be the usb image but just the booting from usb altogether. You need to ensure you have usb boot enabled in your BIOS, and that the boot order specifies USB first. Also, you need to make sure that particular port has power during boot (lights on the flash drive should tell you it's ON). If in doubt, try a different port. It's not inconceivable that your hardware only looks at certain USB ports during boot. Also note if you have older hardware you might not even be able to boot from USB (though I think that era is mostly in the past, let's assume for now you can).

You don't give much information in terms of your hardware setup or windows/linux experience, so it's hard to gauge what needs to be considered. Try running over those steps and if that doesn't get you started then give me a bit more information and I can offer more advice.

CentOS is really designed more for a server environment (no UI), you might be better off installing Fedora which will also support a larger range of hardware, such as that found on laptops.

To clarify: you might have additional drivers necessary for the storage device on your laptop, which might be causing the problems. What kind of laptop is it?

One more vote in favor of Fedora in this situation. I have been focusing on Red Hat, CentOS, and Fedora the past year, and I recently built a PC for my brother using Fedora 21. I installed a low end gaming card, and got Minecraft and Steam running without too much difficulty.

https://getfedora.org/en/workstation/download/

Maybe you can try docker, which provides a separated container environment and ships with the latest ffmpeg . Here is the docker file and the tutorial for installation with docker is here.

This is a great place to look. Basically you can establish blacklists to block access or white lists to allow access. https://www.linode.com/community/questions/11143/top-tip-firewalld-and-ipset-country-blacklist

With NoMachine you can disable of copy and paste on the server. Not sure if this will help. See this for reference:

How to disable clipboard in NoMachine
https://www.nomachine.com/AR04L00798

It appears you need to add some arguments. Try:

apxs -ci mod_xsendfile.c

or

apxs -cia mod_xsendfile.c

The examples show that with just -c you will get the files you mentioned

http://httpd.apache.org/docs/2.2/programs/apxs.html#examples

What guide did you follow to install and set up certbot in the first place? Did you switch to trying letsencrypt-auto because of the GP post? I linked the official install guide earlier.

after trying almost everything this morning i found this:

https://www.wireguard.com/build-status/

wireguard-linux-compat 4.18.0-259.el8-centos-c8s (x86_64) Failure

apparently it just does not build on this kernel version seems like i just have to wait.

i also find something odd my linux kernels where from a 5.10 so i did a reinstalled the headers with --allowereasing to fix that

I've been using Aria2 for years as a command line downloader but recently learned it supports torrents. Not sure if it's in CentOS repos as I generally install it on Fedora but it's def in Fedora repos.

No offence, but the bare minimum of searching the net should take you here to create http remotes. I have to do my research every time I need to set it up.

Off the top of my head, setup should be something like rclone config and add new remote, select http, paste remote folder in http://example.com/remotefolder/root you want to sync, and it'll sync recursively.

Warning on Fedora, don't sync development, it takes some crazy space.

The PHPMyAdmin site agrees that the main version only supports up to PHP 7.2. It might still work on 7.3, you just won't be able to get support from PMA if you run into problems.

You could try the dev version (from https://www.phpmyadmin.net/downloads/, version "5.0+snapshot").

As an alternative, you could try Adminer instead. It's much lighter-weight than PMA (Adminer is a single ~400 KB PHP file), so it could have fewer potential compatibility issues.

• [fs] revert "[fs] sunrpc: Ensure we always close the socket after a connection shuts down" (Dave Wysochanski) [1660784 1657399]

This was causing us total deadlocks when NFS servers restarted - clients going 'stuck' and not recovering.

Then there's this write up - which we had too.

https://about.gitlab.com/2018/11/14/how-we-spent-two-weeks-hunting-an-nfs-bug/

We've also hit places where the changed that cache-invalidation on locking between 7.3 and 7.5 (we skipped 4, it might have been in there) such that anything that took byterange locks on files, would end up massively dropping in performance because their local cache would invalidate each time.

CentOS 5.6 has not been released. From https://twitter.com/#!/CentOS/status/55950095505567745:

> CentOS Karanbir Singh
> Just want to also point out that CentOS-5.6 is not released. And packages, ISOS are liable to change till that happens. > 21 hours ago Favorite Retweet Reply

I'm also with /u/jerutley on this one. While I think the paid Google Apps is worth it's money, Zoho offers a free alternative for your own domain name. Also almost all web providers offer email services with the webspace. Some of them are very reasonably priced and still offer a great email experience. Some even go as far as offering a whole office suite. The OX App Suite is a white label product targeting hosting and internet service providers. GMail isn't the only game in town.

OTOH if you really want to do it, Kolab has a great groupware suite with excellent CentOS support for their FOSS offering. Setting up an email server can be a great learning experience.

With iRedMail I currently have 4 domains handled by one Centos 6 64-bit VPS. You can send/receive, create accounts and have access to some webmail software. It requires a fresh install, but will set itself up and will then allow you to configure it. Every morning I wake up with 3 emails (optional I believe) that give me statuses of the VPS. There are some post-install instructions on their site regarding MX records and other things. You can also configure it for secure SMTP services if you have websites or other things you'd like to send Emails from.

EPEL is part of Fedora, and Fedora infrastructure is in the middle of a long datacenter migration. This is likely what caused the inconsistencies you saw on the mirror network.

https://hackmd.io/@fedorainfra2020/rJpsA4FLL

rpm --ivh --force --allfiles has been tried without success

== well that's not true -- the package installs per rpm -qa --last | grep torguard but as stated when clicking applications->Internet->Torguard VPN client nothing happens

and there is nothing logged in /var/log/messages other then the first install and erase from 26 FEB

I erased at that time because the application was not lauching and have attempted to reinstall since without success

thanks

CentOS6

downloaded from torguard

rpm -qa --last does show torguard-v3.92.0-0.i386 installed Tue 05 Mar 2019 0705:05:30 PM CST rom --verify shows package torguard-v3.92.0-0.i386 is not installed

clicking Applications->Internet->Torguard VPN Client does nothing :(

thanks for the help

I'd use tinc to see if it works:

https://play.google.com/store/apps/details?id=org.poirsouille.tinc_gui

There's also an openvpn installer on github I've used lots of times:

https://github.com/Nyr/openvpn-install