# yum install system-config-firewall-tui dbus-python dbus # service messagebus start # system-config-firewall-tui Those following commands I have to preform whenever I get a CentOS 6 OpenVZ/KVM VPS with a minimal install of CentOS 6. Install and configure SNMP on your CentOS server using our easy to follow tutorial. SNMP, or Simple Network Management Protocol, is widely used to communicate with and monitor network devices, servers, and more. We will now use nc, a.k.a. Netcat, to test access to the service. If nc is not installed by default - run “sudo yum install nc” on Red Hat-based distros or “sudo apt-get install netcat” on Debian-based distros. First we’ll run a simple test to see if the port accepts connections. Yum install screen wget nano perl -y. Once the software has been installed we need to make sure the hostname for your server is set correctly. If it is not, cPanel will complain before the install starts. Run the command. Configure Firewall. In Centos 7 a new firewall system is used by default called firewalld. Often times this firewall. If you are familiar with iptables service like in centos 6 or earlier, you can still use iptables service by manual installation: step 1 => install epel repo. Yum install epel-release. Step 2 => install iptables service. Yum install iptables-services. Step 3 => stop firewalld service. Systemctl stop firewalld. Step 4 => disable firewalld. Install Iptables Firewall in Redhat / CentOS Linux last updated April 5, 2011 in Categories RedHat and Friends H ow do I install iptables under Redhat (RHEL) or CentOS or Fedora Linux operating systems? I want to 'yum install php-mbstring' on Centos 6. The problem is that due to firewall restrictions, the centos machine can not connect outside. Yum install offline/without package on Centos 6 from a source due to firewall. Ask Question. Up vote 0 down vote favorite. I want to 'yum install php-mbstring' on Centos 6. The problem is that due.
- Install Netcat Rhel
- Centos 6 Network Install
- Centos 6 Firewall Configuration
- Centos 6 Download
- Yum Install Netcat Centos 6 Firewall Windows 10
I'm using the following CentOS:
The commands nmap, netstat and lsof are not found on CentOS7. Why?
What should I do to make them work?
Jeff Schaller♦5 Answers
The package net-tools was deprecated in CentOS7 in favour of the iproute2 suite. You may either install it manually or check out this blogpost for replacement commands:
Install Netcat Rhel
EDIT
Here is the URL to Red Hat's Bugzilla for RHEL7 that covers the deprecation of netstat in more detail: https://bugzilla.redhat.com/show_bug.cgi?id=1119297
As stated before, net-tools are deprecated thus shouldn't be used unless necessary. Behaviour in RHEL 7 is the same as in Fedora - net-tools is missing from minimal install, but is in @base (~= @standard in Fedora) which is installed in all non-minimal configurations.
There are also other tickets that deal with this such as IDs 682308 and 687920. Note that they are assigned to the Fedora project and are quite old.
slm♦Whenever you cannot find executables on a Red Hat based distro and you know their names, you should do 1 of the following 2 things.
Use repoquery
You can search the YUM repositories that are available to your system by using the command repoquery. If it isn't installed, then do a yum install yum-utils.
From here you can see which packages have an executable with those names. Here's all of them at once.
Now just do a sudo yum install lsof or sudo yum install nmap to install these missing packages.
Use yum search
You can also do a similar search using yum search <executable>.
Centos 6 Network Install
With this approach you'll need to do a bit of digging to confirm that the resulting packages include the executable you're looking for. I typically look in there lit of files for what I want, but for that you'll have to use repoquery.
So using my first approach saves you the extra steps.
netstat's deprecation
Apparently in CentOS 7 netstat, which is part of the package net-tools has been officially deprecated, so you should be using ss (part of the package iproute2), going forward.
Upvoted slm's answer, just making it easier to find the info I used. I wanted to do:
Instead, on CentOS 7 I just did:
Which works, didn't even have to install it on CentOS 7 minimal.
Do 'man ss' for usage details.
It seems that you simply don't have these tools installed. On CentOS, you should be able to install them easily with yum. Try this:
Not the answer you're looking for? Browse other questions tagged centospackage-management or ask your own question.
Centos 6 Firewall Configuration
I want to 'yum install php-mbstring' on Centos 6. The problem is that due to firewall restrictions, the centos machine can not connect outside. Therefore, epel etc packages fail due to unreachable: http://download.fedoraproject.org/pub/epel...
I can transfer any file from my computer to the centos machine. So, is it possible to download php-mbstring source and put to the centos machine so that it can be installed offline?
Note: Downloaded packages such as epel-release-6-8.noarch.rpm and putting on the centos machine doesnt work because they still need external connection when I run yum install.
2 Answers
Use yumdownloader on a system which does have internet access.
This will pull the package and its dependencies (using the --resolve switch) down to the local directory.
Copy the files to the system in question and yum install using the path to the files.
Centos 6 Download
ewwhiteewwhiteYou need to download your package (which will be called php-mbstring-….rpm) from the EPEL repository (for EL6, you can browse https://dl.fedoraproject.org/pub/epel/6/ to find the packages). Transfer that package to the server on which you need it installed, and run:
Yum Install Netcat Centos 6 Firewall Windows 10
In other words, if you give yum an rpm filename, rather than a simple package name, it will install that rpm without looking for the package in its repositories.
Note - if the package has requirements that would need to be satisfied by other packages, yum will still look in its repos as usual for those unsatisfied requirements. In that case, you can download all the dependencies in the same manner, then give all of them on the command line:
(If you put them all in the same directory, you can obviously use a wildcard to avoid typing all the filenames).