- WLUG - wlug.mailman3.com

DVI Initial Resolution
by Dennis Payne 25 Feb '19

25 Feb '19

I've had the cub scouts build an arcade machine. The TV being used for display is connected by DVI. Fedora defaults to a resolution the TV does not support. If I hookup a monitor on the VGA port I can set the resolution of the second monitor but it switches back to an unsupported resolution when the second monitor is disconnected. Anyone know how to force a specific resolution on boot? -- Dennis Payne <dulsi(a)identicalsoftware.com>

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Reminder: Meeting Tomorrow (Feb. 21st) Topic: AWX Please note location!!!
by Tim Keller 20 Feb '19

20 Feb '19

Hey Gang, This is a reminder that we've got a meeting tomorrow! Time: 7pm Date: Feb. 21st 2019 Location: Fuller Labs, Beckett Conference Room (Room 246) https://maps.wpi.edu/?id=609#!m/105273 Topic: AWX AWX is a platform for managing the automation of running ansible playbooks. My talk will include an overview of ansible / git / gitlab and AWX as they fit together as a system to manage configurations and software. For those who use puppet/chef/salt, I'm sure there will be lively comparisons. Refreshments and snacks will be provided and afterwards we'll head off (likely to the Boynton) to continue the conversation. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Meeting is on Thursday!!!
by Tim Keller 20 Feb '19

20 Feb '19

Apparently my proofreading skills were a bit off... The meeting is on THURSDAY, Feb. 21st! Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Reminder: WLUG Meeting THIS Thursday (2/21/2017): Topic: AWX
by Tim Keller 19 Feb '19

19 Feb '19

Hey Everybody, We've got a meeting on Wednesday Location: Fuller Labs, Beckett Conference Room, RM 246 Time: 7PM Topic: AWX and Ansible. AWX is the open source upstream version of Ansible Tower. This is a system that automates the running of ansible playbooks on hosts. What's ansible? Ansible is a management and configuration system for installing / modifying and maintaining linux/unix machines. What's cooler is that AWX can natively use git to manage configs. I'll talk about ansible, playbooks and then AWX. As usual, snacks and refreshments will be provided and we'll head off for dinner afterwards to continue to conversation. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Reminder: NO MEETING TODAY!
by Tim Keller 14 Feb '19

14 Feb '19

Just a reminder, the meeting has been moved to Feb. 21st. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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How do I get on daily emails only??
by John Spencer 13 Feb '19

13 Feb '19

I keep getting individual emails. I have tried to change the setting so I only get emails daily not every time someone posts. Can you please make this change for me. Thanks Regards, John Spencer Connected Systems Partners Office: (978) 455-5550 x208 Cell: (978) 621-9743 jspencer(a)connectedsp.com<mailto:jspencer@connectedsp.com> www.connectedsp.com<http://www.connectedsp.com/> GET CONNECTED! All information in this email, unless indicated otherwise in the body of the email, is considered confidential and intended for the view and use of the recipient(s) only.

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charter.net is blocking all Digital Ocean droplet email
by John Stoffel 13 Feb '19

13 Feb '19

I need to vent here. Charter.net which provides my internet, sucks. They are now refusing to accept email from *any* IP blocks owned by Digital Ocean, even though I've got a good mail setup on a droplet there, with proper DNS entries, SPF, etc. So I'm looking to spin up a new instance on some other provider, or I'm going to try and route the email via my @charter.net account that I have since I'm a customer. And I have opened a ticket with them. No answer. Jerks. What do people think of Vultr.com? Seems pretty comparable... I just wonder when Charter will block their IP blocks... Jerks. I think it's too expensive to buy an IPv4 address for more permanent use, since it's too easy for that block of 256 to be blanket banned by some jerks. Grr!!!!! John

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Re: Openvpn and Network mapping
by Higgins, Benjamin J 04 Feb '19

04 Feb '19

Nick: Reminder... just because you *can* doesn't mean you *should*. That is all. --ben From: Krichevsky, Nicholas Jacob via WLUG <wlug(a)lists.wlug.org> Sent: Sunday, February 3, 2019 11:26 AM To: Worcester Linux Users' Group General Discussion <wlug(a)lists.wlug.org>; Levasseur, Kenneth <klevasseur(a)wpi.edu> Cc: Krichevsky, Nicholas Jacob <njkrichevsky(a)wpi.edu> Subject: [WLUG] Re: Openvpn and Network mapping The goal was to expose the LAN, mostly for fun, but what you're describing is certainly the more practical way of solving the port forwarding problem directly. If I can't solve the routing problem, this might just end up being my fallback. Get Outlook for Android<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Faka.ms%2Fg…> ________________________________ From: Levasseur, Kenneth Sent: Sunday, February 3, 2019 8:52:38 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob Subject: Re: Openvpn and Network mapping I hit some keys and it sent the message early. Not sure what happened there. Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ssh localhost -p <desired_port> Now you're ssh'd into the NAS. The desired port could be anything but it needs to be the same on both ends. This also assumes your VPS has a static IP/dynamic dns, and you may need some way to keep the connection alive if it's going to be up for a long time. ________________________________ From: Levasseur, Kenneth via WLUG <wlug(a)lists.wlug.org<mailto:wlug@lists.wlug.org>> Sent: Sunday, February 3, 2019 8:48:34 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob; Levasseur, Kenneth Subject: [WLUG] Re: Openvpn and Network mapping Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ________________________________ From: Krichevsky, Nicholas Jacob via WLUG <wlug(a)lists.wlug.org<mailto:wlug@lists.wlug.org>> Sent: Sunday, February 3, 2019 1:42:35 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob Subject: [WLUG] Openvpn and Network mapping So I've found myself in an unfortunate situation where I cannot port forward on my router. My solution to this was to setup an openvpn tunnel on my VPS that would allow me to access my LAN via a NAS that I keep online in my apartment. (In other words, my laptop would connect to my VPS, which would route to my apartment via my NAS, and thus expose the LAN). The big problem is that the network uses 192.168.1.0/24, and given that I cannot edit any router settings, I cannot change this. If I were to simply expose this subnet via openvpn, I wouldn't be able to access any other 192.168.1.0/24 address if I were connect to the VPN. My plan was to try and use some iptables magic to map 10.24.0.0/24 to 192.168.1.0. Luckily, this works, thanks to the NETMAP extension (iptables -A PREROUTING -t nat -d 10.24.0.0/24 -j NETMAP --to 192.168.1.0/24, for the curious). However, the only way I can make this work is if I add the NAS as a gateway on all of the machines I want to connect to on my LAN, which is a bit sad (ip route add 192.168.255.0/24 via 192.168.1.69) . Is there some way I can make this a bit more seamless? This isn't my least favorite solution, as I don't need to run the openvpn client on every host, but it isn't much better...

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Re: Openvpn and Network mapping
by Krichevsky, Nicholas Jacob 03 Feb '19

03 Feb '19

The goal was to expose the LAN, mostly for fun, but what you're describing is certainly the more practical way of solving the port forwarding problem directly. If I can't solve the routing problem, this might just end up being my fallback. Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Levasseur, Kenneth Sent: Sunday, February 3, 2019 8:52:38 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob Subject: Re: Openvpn and Network mapping I hit some keys and it sent the message early. Not sure what happened there. Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ssh localhost -p <desired_port> Now you're ssh'd into the NAS. The desired port could be anything but it needs to be the same on both ends. This also assumes your VPS has a static IP/dynamic dns, and you may need some way to keep the connection alive if it's going to be up for a long time. ________________________________ From: Levasseur, Kenneth via WLUG <wlug(a)lists.wlug.org> Sent: Sunday, February 3, 2019 8:48:34 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob; Levasseur, Kenneth Subject: [WLUG] Re: Openvpn and Network mapping Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ________________________________ From: Krichevsky, Nicholas Jacob via WLUG <wlug(a)lists.wlug.org> Sent: Sunday, February 3, 2019 1:42:35 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob Subject: [WLUG] Openvpn and Network mapping So I've found myself in an unfortunate situation where I cannot port forward on my router. My solution to this was to setup an openvpn tunnel on my VPS that would allow me to access my LAN via a NAS that I keep online in my apartment. (In other words, my laptop would connect to my VPS, which would route to my apartment via my NAS, and thus expose the LAN). The big problem is that the network uses 192.168.1.0/24, and given that I cannot edit any router settings, I cannot change this. If I were to simply expose this subnet via openvpn, I wouldn't be able to access any other 192.168.1.0/24 address if I were connect to the VPN. My plan was to try and use some iptables magic to map 10.24.0.0/24 to 192.168.1.0. Luckily, this works, thanks to the NETMAP extension (iptables -A PREROUTING -t nat -d 10.24.0.0/24 -j NETMAP --to 192.168.1.0/24, for the curious). However, the only way I can make this work is if I add the NAS as a gateway on all of the machines I want to connect to on my LAN, which is a bit sad (ip route add 192.168.255.0/24 via 192.168.1.69) . Is there some way I can make this a bit more seamless? This isn't my least favorite solution, as I don't need to run the openvpn client on every host, but it isn't much better...

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Re: Openvpn and Network mapping
by Levasseur, Kenneth 03 Feb '19

03 Feb '19

I hit some keys and it sent the message early. Not sure what happened there. Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ssh localhost -p <desired_port> Now you're ssh'd into the NAS. The desired port could be anything but it needs to be the same on both ends. This also assumes your VPS has a static IP/dynamic dns, and you may need some way to keep the connection alive if it's going to be up for a long time. ________________________________ From: Levasseur, Kenneth via WLUG <wlug(a)lists.wlug.org> Sent: Sunday, February 3, 2019 8:48:34 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob; Levasseur, Kenneth Subject: [WLUG] Re: Openvpn and Network mapping Do you need to route the entire network, or just access the NAS and other hosts? I think you could do something with SSH reverse tunneling, given you have a VPS. On the NAS: ssh -R <desired_port>:localhost:22 user@<vps_address> Then, once you've ssh'd into the VPS from anywhere else: ________________________________ From: Krichevsky, Nicholas Jacob via WLUG <wlug(a)lists.wlug.org> Sent: Sunday, February 3, 2019 1:42:35 AM To: Worcester Linux Users' Group General Discussion Cc: Krichevsky, Nicholas Jacob Subject: [WLUG] Openvpn and Network mapping So I've found myself in an unfortunate situation where I cannot port forward on my router. My solution to this was to setup an openvpn tunnel on my VPS that would allow me to access my LAN via a NAS that I keep online in my apartment. (In other words, my laptop would connect to my VPS, which would route to my apartment via my NAS, and thus expose the LAN). The big problem is that the network uses 192.168.1.0/24, and given that I cannot edit any router settings, I cannot change this. If I were to simply expose this subnet via openvpn, I wouldn't be able to access any other 192.168.1.0/24 address if I were connect to the VPN. My plan was to try and use some iptables magic to map 10.24.0.0/24 to 192.168.1.0. Luckily, this works, thanks to the NETMAP extension (iptables -A PREROUTING -t nat -d 10.24.0.0/24 -j NETMAP --to 192.168.1.0/24, for the curious). However, the only way I can make this work is if I add the NAS as a gateway on all of the machines I want to connect to on my LAN, which is a bit sad (ip route add 192.168.255.0/24 via 192.168.1.69) . Is there some way I can make this a bit more seamless? This isn't my least favorite solution, as I don't need to run the openvpn client on every host, but it isn't much better...

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