You execute: systemctl start xrdp and the service does not start and you find the following in the messages log Apr 7 16:01:22 myserver systemd: Started xrdp session manager. Apr 7 16:01:22 myserver systemd: Starting xrdp session manager… Apr 7 … Continue reading →
Installation Centos 7 rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm yum -y install drbd84-utils kmod-drbd84 Centos 6 rpm –import http://elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm –import ‘http://keys.gnupg.net:11371/pks/lookup?search=0x0608B895&op=get’ yum -y install drbd84-utils kmod-drbd84 Configuration create /etc/drbd.d/drbd1.res resource repdata { protocol … Continue reading →
Compromised web sites can be used to relay spam email. To limit that or track which web sites are being used to send spam, you can limit which users can us sendmail, you can do the following. As root: Create … Continue reading →
Issue Someone needs a database on the local mysql server, but you only want this user to access this database. mariadb Resolution mysql -u root -p (enter the mysql root password when prompted) create user booga@localhost; alter user booga@localhost identified … Continue reading →
Some RAID Controllers, many fake RAID controllers and software raid put a signature on both the beginning and/or ending of the space on a hard drives. This many times creates problems when reformatting the drives or reloading the system after … Continue reading →
From a command line prompt: systeminfo | find /i “install date”
Continue reading →for /L %%A in (15,1,254) DO ( dnscmd /recordadd 6.9.10.in-addr.arpa %%A PTR office.seei.biz )
Continue reading →Pandoc Everyone I know who works with markup languages says Pandoc is the go-to utility for converting between those languages. And for good reason: Pandoc not only does some pretty nifty conversions, it’s fast, too. Have a file formatted with … Continue reading →
Centos 7 Enable yum repository by logging in as root at a bash prompt, then cut/copy/paste the following: cat << EOF > /etc/yum.repos.d/google-chrome.repo [google-chrome] name=google-chrome – $basearch baseurl=http://dl.google.com/linux/chrome/rpm/stable/$basearch enabled=1 gpgcheck=1 gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub EOF You will see the following [root@mycomputer ~]# cat … Continue reading →
Update!! Use these instructions instead: https://docs.fedoraproject.org/en-US/Fedora/23/html/System_Administrators_Guide/sec-Configuring_GRUB_2_Using_the_grubby_Tool.html A typical CentOS 7 Linux system has multiple kernels. How many kernels you have in your CentOS systems depends on the configuration setting. Sometimes you might feel the need to change the … Continue reading →