25/Aug 2018
2 min. read
Let’s Encrypt: Aanmaken / vernieuwen certificaat: /opt/letsencrypt/letsencrypt-auto certonly --expand ---email support@nucleus.be --agree-tos --webroot -w /var/www/vhosts/WEB/ROOT -d domain.tld -d domainalias.tld --dry-run /bin/certbot --text --agree-tos --non-interactive certonly -a webroot --webroot-path /var/www/vhosts/WEB/ROOT -d domain.tld -d domainalias.tld --dry-run --dry-run om het aanmaken te testen.
Apache / httpd (1) Voeg volgende regels toe aan de apache config: Alias /.well-known /var/www/vhosts/letsencrypt/.well-known <Directory /var/www/vhosts/letsencrypt/.well-known> order allow,deny allow from all satisfy any </Directory> Of (2) voeg volgende regels toe aan .
25/Aug 2018
3 min. read
MySQL Tuner WAARDE ACTIE query_cache_size AFBLIJVEN table_cache AFBLIJVEN (maximumwaarde = 64) table_open_cache AFBLIJVEN join_buffer_size Verhogen indien Joins performed without indexes++ tmp_table_size Verhogen = max_heap_table_size max_heap_table_size Verhogen = tmp_table_size query_cache_type =1 indien =0 mysql tuning improvements table_cache NOOIT hoger dan 64 Sudo vim /etc/my.cnf query_cache_size’ => ‘256M’, It caches the select query along with the result set, which enables the identical selects to execute faster as the data fetches from the in memory.
25/Aug 2018
2 min. read
Windows troubleshooting VRAGEN: + openen vanuit ticketing, wachtwoord en gebruiker + custom even viewer view? + test server?
EventViewer run: eventvwr
custom views windows application (non windows standard, puppet, vmware, mssql, …) security, aan en afmelden set-up: updates en installatie verwijderen programma’s system: OS meldingen application and services: diep graven –> Filter Log:
logged (date range)
event level
event source
event ID: 99,-1024,-4634
23/Aug 2018
1 min. read
Tips and tricks to keep letsencrypt working
23/Aug 2018
By Kristof Vandam
1 min. read
Add a new disk (LVM) root@server:/dev/centos # for i in /sys/class/scsi_host/host*; do echo "- - -" > $i/scan; done root@server:/dev/centos # NEWDISK=$(dmesg|tail|grep 'Attached'|awk '{print $4}'|tail -n1|cut -d "[" -f2|cut -d "]" -f1) root@server:/dev/centos # VGROUP=$(vgdisplay|grep Name|head -n1|awk '{print $3}') root@server:/dev/centos # echo ${NEWDISK} sdd root@server:/dev/centos # echo ${VGROUP} centos root@server:/dev/centos # pvcreate /dev/${NEWDISK} Physical volume "/dev/sdd" successfully created. root@server:/dev/centos # vgextend ${VGROUP} /dev/${NEWDISK} Volume group "centos" successfully extended Create a logical volume (LVM) root@server:/dev/centos # lvcreate -L 15G -n encrypted centos Logical volume "encrypted" created.