Categories
Mastering Development System & Network

Creating an SRE Testing Interview VM

I’m working on hiring for a Site Reliability Engineering role and I want to create a "broken" VM for them to log into and debug. What sort of scenarios would you suggest I put in place to accurately test an applicant’s knowledge of Linux command line and basic web server (LAMP) functionality? We run an […]

Categories
Mastering Development System & Network

FTP LOGIN FAILED (virtual host access denied)

I have a Solaris 10 machine with anonymous ftp login configured. But any time I try connecting from any ftp client or attempting to connect with the ip address from the machine itself, I get the below error in /var/adm/message ftpd[16627]: [ID 651194 daemon.notice] FTP LOGIN FAILED (virtual host access denied) for XXX.XXX.XXX.XXX [XXX.XXX.XXX.XXX], ftp […]

How do I port forward a node.js app on linode

This is how I port foward a python server app I am working on. python manage.py runserver 45.56.110.221:8080 I’m trying to do the same with an express app. I can’t seem to figure it out. Does anyone know? I am using a Linode server and want to test an app out on it instead of […]

Categories
Mastering Development System & Network

Squid IP Routing Issue

I have a squid server installed with 30 additional proxy addresses. Whenever I try to use one of these proxy addresses with a browser, like chrome, my IP shows as the main server IP as opposed to the additional address. For example, say the home IP is 192.0.0.10 and the additional IP I’m trying to […]

Categories
Mastering Development System & Network

Apache won’t record X-Forwarded-For

I am trying to record the a client ip stored in the X-Forwarded-For http header in the Apache access logs but having no luck and have been pulling my hair out for hours. I’ve tried a ton of different things – nothing seems to work! First I tried: # Fields to record LogFormat "(%{X-Forwarded-For}i) %l […]

Categories
Mastering Development System & Network

Configuring Hyper-V on Windows 10 for pass-through DHCP

I’ve created a windows Hyper-V VM on a Windows 10 (X64) 2004 Pro host. I’m using the Hyper-V manager console, and the VM is working fine and has internet connectivity when using the default switch. I’m trying to configure it so that the VM receives IP address and gateway from the network DHCP, not from […]

Categories
Mastering Development System & Network

Miigrating security groups from one AWS account to another

I quite new to AWS, I have cloud formations stacks with several security groups (25 in all) I want to migrate these security groups to another AWS account. I am wondering what is the best way for and if there is any suggestions.

Categories
Mastering Development System & Network

RTNETLINK answers: Invalid argument when adding route

I wish to add static route for my interface eth1. But Whenever I use route command , I get this annoying error RTNETLINK answers: Invalid argument. Current routing configuration Destination Gateway Genmask Flags Metric Ref Use Iface 10.73.55.172 0.0.0.0 255.255.255.252 U 0 0 0 eth2 10.64.23.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 […]

Categories
Mastering Development System & Network

Miigrating security groups from one AWS account to another

I quite new to AWS, I have cloud formations stacks with several security groups (25 in all) I want to migrate these security groups to another AWS account. I am wondering what is the best way for and if there is any suggestions.

Categories
Mastering Development System & Network

Cannot add B2B Invites

User the Global Administrator account and/or Guest Inviter role not able to add any more new B2B external users. I have added 6 B2B users already a week or so ago. Give me an error say Graph call failed with httpCode=Forbidden, errorCode=Authorization_RequestDenied, errorMessage=Insufficient privileges to complete the operation., reason=Forbidden, correlationId = 46afcef6-aeaa-423b-8e9b-b59cb3fa506e, response = {"odata.error":{"code":"Authorization_RequestDenied","message":{"lang":"en","value":"Insufficient […]