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nerdalert / relay-node-err.md
Created April 21, 2023 17:40 
command: nexd --stun --username qaa9a7badf-df1b-11ed-9534-0022480a240b --password x6!GHS6g3TUyHH relay https://qa.nexodus.io
2023-04-20T02:12:13.738Z	INFO	nexd/main.go:128	Debug logging enabled
2023-04-20T02:12:13.738Z	INFO	nexd/main.go:68	Starting relay agent with wireguard driver
2023-04-20T02:12:13.742Z	DEBUG	nexodus/stun_linux.go:73	send to 64.233.186.127:19302: (0 bytes)
2023-04-20T02:12:13.911Z	DEBUG	nexodus/stun_linux.go:170	response from 64.233.186.127: (40 bytes)
2023-04-20T02:12:13.911Z	DEBUG	nexodus/stun_linux.go:66	reflexive binding is: 52.90.113.12:51820
2023-04-20T02:12:13.916Z	DEBUG	nexodus/stun_linux.go:73	send to 142.250.15.127:19302: (0 bytes)
2023-04-20T02:12:14.031Z	DEBUG	nexodus/stun_linux.go:170	response from 142.250.15.127: (40 bytes)
2023-04-20T02:12:14.031Z	DEBUG	nexodus/stun_linux.go:66	reflexive binding is: 52.90.113.12:51820
@nerdalert
nerdalert / ec2-sec-groups.md
Last active April 17, 2023 16:05

EC2 Security Groups and Rules

  • DescribeSecurityGroups: This endpoint allows you to retrieve information about one or more security groups, such as their IDs, names, descriptions, and associated VPCs.

  • CreateSecurityGroup: This endpoint allows you to create a new security group in a specified VPC. You can specify the name, description, and VPC ID for the new security group.

  • AuthorizeSecurityGroupIngress: This endpoint allows you to add inbound rules to a security group. You can specify the security group ID, IP protocol, port range, and the source of the traffic (e.g., an IP range, another security group, or a prefix list).

  • AuthorizeSecurityGroupEgress: This endpoint allows you to add outbound rules to a security group. You can specify the security group ID, IP protocol, port range, and the destination of the traffic (e.g., an IP range, another security group, or a prefix list).

  • RevokeSecurityGroupIngress: This endpoint allows you to remove inbound rules from a security group. You can specify th

@nerdalert
nerdalert / 503-logs.md
Created March 25, 2023 22:27

Disco Node Logs

2023-03-24T03:26:25.664Z	DEBUG	nexodus/wg-peers.go:186	Local Node Configuration - Wireguard IP [ 100.100.0.1 ]
2023-03-24T03:26:25.665Z	INFO	nexodus/wg-deploy.go:48	Peer setup complete
2023-03-24T03:26:50.656Z	DEBUG	nexodus/nexodus.go:349	Reconciling peers from relay state
2023-03-24T03:26:50.656Z	DEBUG	nexodus/nexodus.go:470	Reconciling peers from relay state
2023-03-24T03:27:20.656Z	DEBUG	nexodus/nexodus.go:349	Reconciling peers from relay state
2023-03-24T03:27:20.656Z	DEBUG	nexodus/nexodus.go:470	Reconciling peers from relay state
2023-03-24T03:27:50.660Z	DEBUG	nexodus/nexodus.go:349	Reconciling peers from relay state
@nerdalert
nerdalert / symmetric-nat.md
Created November 22, 2022 16:16

Symmetric NAT discovery

package main

import (
	"fmt"
	"net"
	"strconv"
@nerdalert
nerdalert / stun-dialer.md
Last active November 17, 2022 16:53

Stun Dialer

package main

import (
	"net"
	"time"

	"github.com/pion/stun"
@nerdalert
nerdalert / tcpdump_examples.md
Created July 24, 2015 03:42

tcpdump examples

See the list of interfaces on which tcpdump can listen:

tcpdump -D

Listen on interface eth0:

tcpdump -i eth0

Listen on any available interface (cannot be done in promiscuous mode. Requires Linux kernel 2.2 or greater):

@nerdalert
nerdalert / macvlan_ipvlan_driver_notes.md
Last active May 9, 2022 02:21
@nerdalert
nerdalert / inventories.md
Last active May 3, 2022 20:21
@nerdalert
nerdalert / new-svr-iper-grps.md
Created May 3, 2022 19:58 
[fedora@cluster2-gw1-ha1-iperf-axon ~]$ kubectl get pods --all-namespaces -o wide| grep iperf-server
default               iperf-server-group1-7dfdb96bf7-jlfd2             1/1     Running     0             17h    10.80.2.3     cluster2-worker1-server-iperf-axon   <none>           <none>
default               iperf-server-group2-84fc844565-gbklz             1/1     Running     0             17h    10.80.3.3     cluster2-worker2-server-iperf-axon   <none>           <none>
default               iperf-server-group2-1-dc45d8fdf-jqfhf            1/1     Running     0             101s   10.80.3.5     cluster2-worker2-server-iperf-axon   <none>           <none>
default               iperf-server-group2-3-78f77d675d-k6ddl           1/1     Running     0             70s    10.80.3.6     cluster2-worker2-server-iperf-axon   <none>           <none>
default               iperf-server-group2-2-b9689dfd4-s7cwk            1/1     Running     0             69s    10.80.3.7     cluster2-worker2-server-iperf-axon   <none>
@nerdalert
nerdalert / ec.md
Last active April 29, 2022 19:07 
ssh -i ./axon-perf-testing.pem fedora@34.238.122.79

[cluster1brokerNode]
34.238.122.79 ansible_user=fedora ansible_connection=ssh k8s_master=10.10.0.94 hostname=cluster1-ha1-iperf-node