Drunk on technology https://nerdydrunk.info/ 2026-04-20T11:15:07+00:00 https://nerdydrunk.info/ https://nerdydrunk.info/_media/wiki:favicon.ico text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:apache-sni?rev=1658400099&do=diff Apache Server Name Indication (SNI) linux apache This following are Apache configuration examples on how to implement SNI or domain name based virtual hosting. The following examples also include unique SSL certificates for each domain name. The two main requirements are; text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:bash-for-loop?rev=1658400099&do=diff BASH For Loop linux Here is an example of a double for loop that will go into each directory of rsyslog and remove the archive files. [root@MATX01LIMO01 rsyslog]# pwd /var/log/rsyslog Here is the long written out format for ease of reading; for i in * do for j in {1..7} do rm -rf $i/messages.$j.txt done done text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:cacti-centos?rev=1658400099&do=diff Cacti on CentOS linux ## Cacti yum install http://epel.rpm yum install cacti mysql-utilities mysql-server mysql cactidb -u cacti -p < /usr/share/doc/.../cacti.sql vim /etc/cron.d/cacti vim /etc/php.ini #timezone America/Chicago Upgrade to Cacti 1.0.0 text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:cloudmapper?rev=1658400099&do=diff CloudMapper <https://github.com/duo-labs/cloudmapper> <https://duo.com/blog/introducing-cloudmapper-an-aws-visualization-tool> linux cloudmapper aws Overview Prerequisites * Create IAM Policy * Create IAM Role * Create Security Group * Instantiate instance with IAM role and Security Group Install * Clone git repo * Install software requirements * Install pipenv text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:general?rev=1658400099&do=diff Linux General linux Exit Red Hat Graphical Boot (boot splash screen) in a vm: CRTL + END Remove files after “k” number of days find /PATH/TO/FILES/* -mtime +$k -exec rm -rf {} \; RHEL / CentOS 7 System Control systemctl -a | grep -i servicename systemctl status servicename systemctl start servicename text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:mysql-replication?rev=1658400099&do=diff MySQL Replication linux mysql Prerequisites Source; Server/IP: SOURCENAME 10.1.2.101 (LOCATION) MySQL Instance: 3306 Database(s): * System root password/SUDO access: ROOTPASS / SUDOUSER/SUDOUSERPASS MySQL root password: ? Replication user: ? Replication password: ? Downtime window to enable binary logging (requires MySQL restart): ? Downtime window to take seed backup (requires server be locked to read only): ? text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:netbox?rev=1658400099&do=diff NetBox on Amazon Linux AMI linux netbox aws This is my attempt to install NetBox in an AWS EC2 instance on AWS Linux. <https://netbox.readthedocs.io/en/latest/> 1 $ sudo yum install openssl-devel gcc git postgresql92 postgresql92-server libpqxx-devel python27-psycopg2 python27 python27-devel python27-pip libxml2-devel libxslt-devel libffi-devel graphviz $ sudo mkdir /var/www/netbox $ sudo chmod USERNAME:USERNAME /home/www/netbox $ cd /var/www/netbox $ git clone -b master https://github.com… text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:nextcloud?rev=1658400099&do=diff Nextcloud linux centos aws -Install CentOS7 -Disable SELinux $ sudo vi /etc/selinux/config #SELINUX=enforcing SELINUX=permissive -Install Remi's repo $ sudo yum install http://rpms.famillecollet.com/enterprise/remi-release-7.rpm -y <http://rpms.famillecollet.com/> -Update CentOS7 $ sudo yum upgrade -y $ sudo reboot text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:nss?rev=1658400099&do=diff Network Security Services (NSS) Notes on how to use NSS. Most of the examples below are related to using NSS with Apache. linux nss apache Import Certificates pk12util -i DOMAIN.TLD.p12 -d /etc/httpd/alias/ -W P12PASSWORD * -i is the P12 file that you wish to import text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:ntop?rev=1658400099&do=diff ntop on CentOS 6.8 linux [root@ntop ~]# yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm [root@ntop ~]# vi /etc/yum.repos.d/ntop.repo [ntop] name=ntop packages baseurl=http://packages.ntop.org/centos-stable/$releasever/$basearch/ enabled=1 gpgcheck=1 gpgkey=http://packages.ntop.org/centos-stable/RPM-GPG-KEY-deri [ntop-noarch] name=ntop packages baseurl=http://packages.ntop.org/centos-stable/$releasever/noarch/ enabled=1 gpgcheck=1 gpgkey=http://packages… text/html 2023-08-10T22:11:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:openssl?rev=1691705502&do=diff OpenSSL linux apache OpenSSL Cheat Sheet Most of this should work with LibreSSL, but you will need OpenSSL for the CSR SAN cert. CSR SAN wild card cert openssl req -new -sha256 -newkey rsa:4096 -keyout KEY-FILE.enc.key -out CSR-FILE.csr -addext “subjectAltName = text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:openvpnas?rev=1658400099&do=diff OpenVPN Access Server linux openvpn routing aws Auto install with SSL Cert. Launch an Amazon Linux 2 instance with the following user data. Security Group will need to allow; * SSH (TCP:22) * HTTP (TCP:80) * HTTPS (TCP:443) * Admin (TCP:943) * OpenVPN (UDP:1194) text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:quagga?rev=1658400099&do=diff Quagga linux routing This was done on a Raspberry Pi. 0) Elevate to root and install $ sudo su - # apt-get update # apt-get install quagga quagga-doc 1) Fix VTYSH paging for root and sudo users # echo "export VTYSH_PAGER=more" >> /etc/bash.bashrc # echo "VTYSH_PAGER=more" >> /etc/environment # visudo Defaults env_keep += "VTYSH_PAGER" text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:sflowtrend?rev=1658400099&do=diff InMon - sFlowTrend on CentOS 6.8 linux [root@sflowtrend ~]# yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm [root@sflowtrend ~]# yum install dbus dbus-python system-config-firewall-tui wget [root@sflowtrend ~]# vi /etc/sysconfig/selinux [root@sflowtrend ~]# service messagebus start [root@sflowtrend ~]# system-config-firewall-tui [root@sflowtrend ~]# wget http://www.inmon.com/products/sFlowTrend/downloads/sFlowTrend-linux-6_3.rpm [root@sflowtrend ~]# reboot [… text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:syslog?rev=1658400099&do=diff Syslog linux The following sections show the configurations needed to create a syslog server with log rotation. Rsyslog and syslog-ng have both been included in the examples. === /etc/rsyslog.conf === $ModLoad immark $ModLoad imudp $UDPServerRun 514 $ModLoad imtcp $InputTCPServerRun 514 $template FILENAME,"/var/log/rsyslog/%fromhost-ip%/messages.txt" *.* ?FILENAME # The following line must be commented out. #*.info;mail.none;authpriv.none;cron.none /var/log/messages $u… text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:tftp-server?rev=1658400099&do=diff TFTP Server linux tftp aws This is a quick, dirty, and highly insecure way of getting a writable TFTP server up and running. # sudo yum -y install tftp tftp-server # sudo cat /etc/xinetd.conf enabled = tftp # sudo cat /etc/xinetd.d/tftp service tftp { socket_type = dgram protocol = udp wait = yes user = root server = /usr/sbin/in.tftpd server_args … text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:tt-rss?rev=1658400099&do=diff Tiny Tiny RSS linux docker ubuntu Prerequisites Prerequisites - Ubuntu sudo apt update sudo apt -y upgrade sudo apt -y install docker docker-compose git sudo usermod -aG docker $USER sudo reboot cd ~/ git clone https://git.tt-rss.org/fox/ttrss-docker-compose.git ttrss-docker cd ttrss-docker text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:update-remote?rev=1658400099&do=diff Update Linux Remotely linux ssh-copy-id root@matx01lins02.nerdydrunk.net ssh root@matx01lins01.nerdydrunk.net "yum -y upgrade" ssh root@matx01lins01.nerdydrunk.net "reboot" ssh root@matx01lins01.nerdydrunk.net "rpm -qa kernel && uname -a" ssh root@matx01lins01.nerdydrunk.net "yum -y erase kernel-2.6.32-504.el6.x86_64" ssh root@matx01lins01.nerdydrunk.net "cd ./vmware-tools-distrib/ && ./vmware-install.pl -d" text/html 2022-07-21T10:41:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://nerdydrunk.info/linux:vim?rev=1658400099&do=diff Vim linux Syntax Highlighting To enable syntax highlighting for unique file names edit: /home/USERNAME/.vimrc au BufNewFile,BufRead FILE.NAME setf SYNTAX Syntax files are in: /usr/share/vim/vim74/syntax/ Search and Replace Find each occurrence of 'foo' (in all lines), and replace it with 'bar'.