If so, how would I do it?

If not, is there an easier way to set some basic rules on CentOS other than iptables?

I'm more of an app developer and less of a sys admin.

6 Answers

Since ufw is available in the EPEL repository, it can be directly installed as a package:

yum install -y epel-release
yum install -y ufw

While I am not sure if UFW can be ported easily you can try an alternative

1. yum install system-config-firewall-tui
2. system-config-firewall-tui
3. Select Enabled
4. Choose Customize (tab between elements in NCurses Dialog, use space to select)
5. Now use down arrow to navigate list, space to enable/disable the port
6. Choose Close
7. Choose Ok

You will now have your firewall setup and this will be enabled on every reboot.

I can confirm this works on CentOS 7 for users who want to use gufw + ufw instead of firewalld

cd /etc/yum.repos.d/
wget
yum install ufw
cd /home
systemctl enable ufw
systemctl start ufw
chkconfig ufw on
ufw enable
ufw status
ufw default deny incoming
ufw default allow outgoing
or
ufw default deny outgoing
systemctl disable firewalld
systemctl stop firewalld
chkconfig firewalld off
yum install webkitgtk3 gnome-icon-theme-symbolic python-distutils-extra gtk2 gtk2.i686 gtk3 gtk2-devel gtk3-devel python-netifaces intltool
cd a_place_to_build
mkdir gufw
wget
tar -xvf gui-ufw-15.04.4.tar.gz
cd gui-ufw-15.04.4
as root or sudo -i
python setup.py clean install
cd /usr/bin
cp -rf gufw gufw.orig
cp -rf gufw.pkexec gufw
cp: overwrite ‘gufw’? y
then launch as
$sudo gufw
or
as root gufw
#(optional)
yum remove firewalld firewall-config firewall-applet

You should take a look at firewalld. It's more RH friendly.

1

tested on fedora 21

gufw + ufw:

mkdir gufw
cd gufw
wget
tar -xvf gui-ufw-15.*.tar.gz
cd gui-ufw-15.10.0/
echo '[home_zhonghuaren]
name=RPM Sphere (Fedora_21)
type=rpm-md
baseurl=
gpgcheck=1
gpgkey=
enabled=1' > /etc/yum.repos.d/zhonghuaren_suse_gufw.repo
yum install ufw
systemctl enable ufw
systemctl start ufw
chkconfig ufw on
ufw enable
ufw status
ufw default deny incoming
ufw default allow outgoing #ufw default deny outgoing 1
yum install webkitgtk3 gnome-icon-theme-symbolic python-distutils-extra gtk2 gtk3 gtk2-devel gtk3-devel python-netifaces intltool
python setup.py install --prefix=/usr
systemctl disable firewalld
systemctl stop firewalld
chkconfig firewalld off
#(optional)
yum remove firewalld firewall-config firewall-applet
3
2
1 

2

In CentOS 7, run following commands:

sudo yum install epel-release -y
sudo yum install --enablerepo="epel" ufw -y

Then enable ufw

ufw enable 

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