- Open a webpage that uses the CA with Firefox
- Click the lock-icon in the addressbar -> show information -> show certificate
- the certificate viewer will open
- click details and choose the certificate of the certificate-chain, you want to import to CentOS
- click "Export..." and save it as .crt file
- Copy the .crt file to
/etc/pki/ca-trust/source/anchors
on your CentOS machine - run
update-ca-trust extract
- test it with
wget https://thewebsite.org
#!/bin/bash | |
## Generic installation on all nodes | |
sysctl -w net.ipv4.ip_forward=1 | |
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf | |
sudo sysctl -p /etc/sysctl.conf | |
swapoff -a | |
sed -i '2s/^/#/' /etc/fstab |
#!/bin/bash | |
while true | |
do | |
STATUS=$(curl -s -o /dev/null -w '%{http_code}' http://example.com/poll-me) | |
if [ $STATUS -eq 200 ]; then | |
echo "Got 200! All done!" | |
break | |
else | |
echo "Got $STATUS :( Not done yet..." |
kind: ClusterRole | |
apiVersion: rbac.authorization.k8s.io/v1 | |
metadata: | |
name: system:aggregated-metrics-reader | |
labels: | |
rbac.authorization.k8s.io/aggregate-to-view: "true" | |
rbac.authorization.k8s.io/aggregate-to-edit: "true" | |
rbac.authorization.k8s.io/aggregate-to-admin: "true" | |
rules: | |
- apiGroups: ["metrics.k8s.io"] |
Serial Keys: | |
FU512-2DG1H-M85QZ-U7Z5T-PY8ZD | |
CU3MA-2LG1N-48EGQ-9GNGZ-QG0UD | |
GV7N2-DQZ00-4897Y-27ZNX-NV0TD | |
YZ718-4REEQ-08DHQ-JNYQC-ZQRD0 | |
GZ3N0-6CX0L-H80UP-FPM59-NKAD4 | |
YY31H-6EYEJ-480VZ-VXXZC-QF2E0 | |
ZG51K-25FE1-H81ZP-95XGT-WV2C0 | |
VG30H-2AX11-H88FQ-CQXGZ-M6AY4 |
CATF44LT7C-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
package mycompany.myappp.config; | |
import org.apache.commons.io.IOUtils; | |
import org.springframework.context.annotation.Configuration; | |
import org.springframework.http.HttpInputMessage; | |
import org.springframework.http.HttpOutputMessage; | |
import org.springframework.http.MediaType; | |
import org.springframework.http.converter.AbstractHttpMessageConverter; | |
import org.springframework.http.converter.HttpMessageConverter; | |
import org.springframework.http.converter.HttpMessageNotReadableException; |
#!/bin/bash | |
# run this scripts with `bash emoji-info.sh` or `./emoji-info.sh` | |
usage() { | |
cat << EOF | |
usage: $0 [options] <emoji> | |
Options: | |
-h Show this message | |
-o Octal Escape Sequence |
Here are several different ways to test a TCP port without telnet.
BASH (man page)
$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C
$ cat < /dev/tcp/127.0.0.1/23
#!/bin/bash | |
PARAMS="" | |
while (( "$#" )); do | |
case "$1" in | |
-a|--my-boolean-flag) | |
MY_FLAG=0 | |
shift | |
;; | |
-b|--my-flag-with-argument) | |
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then |