Search found 16 matches

by JeffMings
2020/02/13 21:28:03
Forum: CentOS 8 - Networking Support
Topic: Scrapping NetworkManager for config files
Replies: 7
Views: 538

Re: Scrapping NetworkManager for config files

Thanks for your comments! I was able to create a bridge without disconnecting myself from the remote server. However, I had to use nmcli commands to do it. Using nmtui to create the bridge and slave device just doesn't work correctly. For the overwhelming majority of servers, once a NIC is set, it s...
by JeffMings
2020/02/13 01:56:17
Forum: CentOS 8 - Networking Support
Topic: Scrapping NetworkManager for config files
Replies: 7
Views: 538

Scrapping NetworkManager for config files

Hello All! I am again underwhelmed by NetworkManager and want to use the ifcfg* files exclusively to set the NICs and bridge and not have to worry about anything screwing with it. E.g., I created a bridge with a lot of frustration using nmtui with eno1 slaved to it. NM decided it would be fun to add...
by JeffMings
2018/03/27 20:31:23
Forum: CentOS 7 - Networking Support
Topic: What's your favorite network card?
Replies: 2
Views: 672

Re: What's your favorite network card?

Thanks Trevor :)
That quick reply is very helpful.
by JeffMings
2018/03/19 21:08:07
Forum: CentOS 7 - Networking Support
Topic: What's your favorite network card?
Replies: 2
Views: 672

What's your favorite network card?

Hello All! What is your favorite, or most trusted, network card? I generally don't have to buy additional NICs, since so many servers have 2 or 4 built-in. I recently purchased a few Intel 82574L cards because a lot of people recommend them. However, I've had 2 intermittent and unexpected hangs of t...
by JeffMings
2018/02/21 22:58:20
Forum: CentOS 7 - Software Support
Topic: CentOS 7 Support
Replies: 3
Views: 1108

Re: CentOS 7 Support

I was going to suggest that the OP post on his local Craigslist to find experienced Linux admins, but I realized that this is very generalized. Is there a "recognized" site, like "Monster for Linux specialists" where businesses can turn to find professionals who provide Centos support? I have been p...
by JeffMings
2018/02/07 22:33:07
Forum: CentOS 7 - Security Support
Topic: PCI compliance when update not available
Replies: 7
Views: 5977

Re: PCI compliance when update not available

FYI, I finally solved this by implementing port knocking. It's been around a long time, and it works fairly well, but it requires packages that are not present in the main or EPEL repos: https://li.nux.ro/repos.html Here are my personal notes for implementation - I hope they save someone else some t...
by JeffMings
2018/01/20 00:27:37
Forum: CentOS 7 - Security Support
Topic: PCI compliance when update not available
Replies: 7
Views: 5977

Re: PCI compliance when update not available

Thanks for the reply, Trevor. I agree that the bug is not significant enough to raise alarm. However, the PCI compliance contractor working for our payment processor might not agree, and I don't know how long an answer will take, or if I'll receive a rational one - it's basically a policy matter on ...
by JeffMings
2018/01/19 19:42:15
Forum: CentOS 7 - Security Support
Topic: PCI compliance when update not available
Replies: 7
Views: 5977

Re: PCI compliance when update not available

PCI compliance will be affecting a LOT of Linux server operators. I have the same problem. OpenSSH 7.4p1 is the latest available from the Centos repo, and there doesn't seem to be a newer version available from any of the "official" repos, including EPEL. OpenSSH 7.6 is the version I need to avoid t...
by JeffMings
2017/10/06 09:14:49
Forum: CentOS 7 - Networking Support
Topic: Destination NAT
Replies: 5
Views: 1676

Re: Destination NAT

Most consumer/small office routers do the usual snat where the packets from the hosts inside/behind the router are sent out to the public internet with the address of the router. However, packets coming back, sent by external hosts, almost always return to the inside hosts with the external addresse...
by JeffMings
2017/10/04 23:37:09
Forum: CentOS 7 - Networking Support
Topic: Destination NAT
Replies: 5
Views: 1676

Re: Destination NAT

I'm trying to resolve the same issue, for the most part, in my post:
viewtopic.php?f=50&t=64484

Centos 7 doesn't keep the IP of an external host across a routed or forwarded connection, and I'm hoping to fix that.

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