I changed the port for sshd on my servers to reduce the number of attacks against the sshd server. In the following example, I am changing the port from the default of 22 to 43231 First – backup your sshd_config … Continue reading →
semanage is used in configuring selinux. If it is not installed you need to run yum -y install policycoreutils-python
Continue reading →Centos 7 yum -y install epel-release yum -y groupinstall “GNOME Desktop” yum -y install xrdp xorg-x11-xinit firewall-cmd –permanent –zone=public –add-port=3389/tcp firewall-cmd –reload systemctl start xrdp.service systemctl enable xrdp.service Centos 6 rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm wget -O epel6.key.txt ‘http://keys.gnupg.net:11371/pks/lookup?search=0x0608B895&op=get’ rpm –import epel6.key.txt … Continue reading →
Updated xrdp on a Centos 7 system and xrdp would not start. Error logged in /var/log/messages: Failed at step EXEC spawning /usr/sbin/xrdp: Permission denied Fix: chcon -t bin_t /usr/sbin/xrdp /usr/sbin/xrdp-sesman Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1177202
Continue reading →Configuration 1 I have a situation where I have a group of users that are eating up 100% of the bandwidth in the office. I am limiting the amount of upstream and downstream bandwidth used by these selected users being … Continue reading →
I had some problems upgrading the bios on a Perc 5/i card in a Dell 1900 to version 5.2.2. The links in Dell’s web site had me downloading a file named BR198340.exe. Unfortunately I think this file is for a … Continue reading →
Revised: How to migrate a kvm guest from one host to another. These instructions are for moving a guest machine from one host to another host where the storage is on the host (instead of external storage that can be … Continue reading →
The domain controller of a domain should be set to a reliable time source. All machines in the domain will get the current time from the domain controller. To correct this: Determine which machine is the PDC with the command: … Continue reading →
ProjectLibre is an alternative software to microsoft office project. It can be downloaded from sourceforge here http://sourceforge.net/projects/projectlibre/files/ProjectLibre/ in this case we are going to install/wget the RPM installer wget http://sourceforge.net/projects/projectlibre/files/ProjectLibre/1.5.9/projectlibre-1.5.9-1.rpm/download install with the simple yum -y command and the installation … Continue reading →
Install needed packages: yum -y install vsfptd fail2ban Create ssl certificate /usr/bin/openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout /etc/vsftpd/vsftpd.pem -out /etc/vsftpd/vsftpd.pem Edit the /etc/vsftpd/vsftpd.conf file # Turn on SSL ssl_enable=YES # Allow anonymous users to use secured SSL … Continue reading →