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Don't Learn to hack, hack to LEARN
Sunday, June 5, 2022
Thursday, January 27, 2022
ERROR on ../../tmp/openshift-install--761813450/main.tf line 44, in resource "vsphereprivate_import_ova" "import":
Problem:
..
DEBUG vsphere_tag_category.category: Creation complete after 0s [id=urn:vmomi:InventoryServiceCategory:f49160e4-a017-404f-9ecf-88b93e02f300:GLOBAL]
DEBUG vsphere_tag.tag: Creating...
DEBUG vsphere_tag.tag: Creation complete after 0s [id=urn:vmomi:InventoryServiceTag:75e6da39-1493-4760-a360-5708375c1e49:GLOBAL]
DEBUG vsphereprivate_import_ova.import: Creating...
ERROR
ERROR Error: failed to find provided vSphere objects: failed to find a host in the cluster that contains the provided datastore
ERROR
ERROR on ../../tmp/openshift-install--761813450/main.tf line 44, in resource "vsphereprivate_import_ova" "import":
ERROR 44: resource "vsphereprivate_import_ova" "import" {
ERROR
ERROR
FATAL failed to fetch Cluster: failed to generate asset "Cluster": failed to create cluster: failed to apply Terraform: failed to complete the change
..
Root cause of the problem:
This issue was caused by trying to use a datastore that was not shared storage on a cluster with multiple hypervisors.
Sunday, January 23, 2022
Saturday, January 22, 2022
Bulma.io: the modern CSS framework that just works.
Bulma is a free, open source framework that provides ready-to-use frontend components that you can easily combine to build responsive web interfaces.
Themes:
https://jenil.github.io/bulmaswatch/
Friday, December 31, 2021
libera.chat: new irc environment for opensource communities
Server address:
/server irc.libera.chat 6667
You can connect with an irc client. IRC client suggestion: hexchat
Stats:
Saturday, December 11, 2021
Log4Shell: RCE 0-day exploit found in log4j2, a popular Java logging package
Who is impacted?
Many, many services are vulnerable to this exploit. Cloud services like Steam, Apple iCloud, and apps like Minecraft have already been found to be vulnerable.
https://www.lunasec.io/docs/blog/log4j-zero-day/
X-Force Report URL:
netmiko: Multi-vendor network device library for python
github.com/ktbyers/netmiko Multi-vendor library to simplify CLI connections to network devices; can be helpful espacially for SOAR projects
Create bootable Windows 11 iso on Ubuntu 20.04
❯ sudo dd bs=4M if=/mnt/hgfs/Ddd/Win11_English_x64v1.iso of=/dev/sdc conv=fdatasync status=progress
Wednesday, October 13, 2021
Friday, October 8, 2021
Red Hat: nmcli kullanım notları
Aşağıdaki testler Red Hat Enterprise Linux 8.2 üzerinde gerçekleştirilmiştir.
nmcli linux sistemler üzerinde NetworkManager servisi üzerinden ağ ayarlarını komut satırı kullanarak kontrol edebileceğiniz kullanabileceğiniz bir araçtır.
Aktif profili görüntüle:
#nmcli con show
Yeni bir profil tanımla:
Profil tanımlarken kullanabileceğiniz parametrelerden bazıları: con-name,ifname,type,ipv4.address,ipv4.gateway
#nmcli con add con-name lab ifname eth0 type ethernet ipv4.method manual ipv4.address 172.25.250.11/24 ipv4.gateway
Profil güncelle:
Profil güncellerken kullanabileceğiniz parametrelerden bazıları:
connection.autoconnect,ipv4.dns,+ipv4.addresses
#nmcli con mod lab ipv4.dns 4.2.2.4
#nmcli con mod lab connection.autoconnect
#nmcli con mod lab +ipv4.addresses 10.1.1.1/24
Friday, August 20, 2021
Kubernetes sınav hazırlık içerikleri
Kubernetes online sınav ve kurs içerikleri için aşağıdaki siteyi ziyaret edebilirsiniz.
IBM Security Learning Academy eğitim içerikleri
Özellikle QRadar Security Intelligence Platform, Guardium, IBM Security SOAR, Zero Trust başlıklı eğitimlere ve daha önce kaçırdığınız etkinlik içerikleri için Event Replays altındaki içeriklere mutlaka gözatmanızı öneririm
Monday, June 21, 2021
kafkaserver installation on Red Hat 8.4
yum install java -y
wget https://ftp.itu.edu.tr/Mirror/Apache/kafka/2.8.0/kafka_2.13-2.8.0.tgz
mv kafka_2.13-2.8.0.tgz /opt/
cd /opt/
tar -zxf kafka_2.13-2.8.0.tgz
ln -s /opt/kafka_2.13-2.8.0 /opt/kafka
useradd kafka
chown -R kafka:kafka /opt/kafka*
Edit: /etc/systemd/system/zookeeper.service
[Unit]
Description=zookeeper
After=syslog.target network.target
[Service]
Type=simple
User=kafka
Group=kafka
ExecStart=/opt/kafka/bin/zookeeper-server-start.sh /opt/kafka/config/zookeeper.properties
ExecStop=/opt/kafka/bin/zookeeper-server-stop.sh
[Install]
WantedBy=multi-user.target
Edit: /etc/systemd/system/kafka.service
[Unit]
Description=Apache Kafka
Requires=zookeeper.service
After=zookeeper.service
[Service]
Type=simple
User=kafka
Group=kafka
ExecStart=/opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties
ExecStop=/opt/kafka/bin/kafka-server-stop.sh
[Install]
WantedBy=multi-user.target
systemctl start zookeeper
systemctl start kafka
Monday, January 4, 2021
Edge Computing nedir?
Türkçe faydalı bir kaynak olmuş.
https://www.karel.com.tr/blog/edge-computing-nedir-cloud-computing-ve-fog-computingden-farki-nedir
Konu ile alakalı diğer faydalı bir kaynak (English):
Edge computing is a distributed computing paradigm that brings computation and data storage closer to the location where it is needed, to improve response times and save bandwidth.[1]
https://en.wikipedia.org/wiki/Edge_computing