noctonura's questions

I work on a small screen and I'm trying to make the output of this command shorter, but I cannot get it to work.

Command: docker container ls --all

Output (too wide!):

CONTAINER ID        IMAGE                                                             COMMAND             CREATED             STATUS                        PORTS               NAMES
e56e7efd4c3c        137112412989.dkr.ecr.us-west-2.amazonaws.com/amazonlinux:latest   "/bin/bash"         32 minutes ago      Exited (127) 31 minutes ago                       ami-test

Output I want:

CONTAINER ID | IMAGE | COMMAND | CREATED | STATUS | PORTS | NAMES
e56e7efd4c3c | 137112412989.dkr.ecr.us-west-2.amazonaws.com/amazonlinux:latest | "/bin/bash" | 32 minutes ago | Exited (127) 31 minutes ago | ami-test

Here are some of the 20 or so variations I've tried, none of them have worked:

docker container ls --all  | sed "s/\s+/|/g"

docker container ls --all 2>&1 | sed -e 's/\s+//g'

docker container ls --all 2&1> | sed -e 's/[[:space:]]*/ /'

docker container list --all | sed -e "s/\t/ /g"

I suspect there is something fundamentally wrong with my understanding of pipes and/or sed.

Scenario:

1. Connector.com connects to server.net, which resolves to 20.30.40.50
2. Connector.com and 20.30.40.50 keep the connection open
3. DNS is updated so that server.net now resolves to 7.8.9.10

Should Connector.com recognize that server.net now resolves to something different and open a new connection? How should this be handled?

I have an existing 802.11n WLAN router with an Ethernet connection as its upstream WAN connection (router A). I would like to get another 802.11n WLAN router (router B) and have it use router A as its upstream WAN connection. Router B needs to connect to router A via 802.11n with WPA2 security.

Is this possible? Any WLAN routers support this notion of connecting to anothe WLAN router as its upstream WAN connection?

Thanks.

I have two Windows Server 2008 SP2 machines. Occasionally I see that when I open a file share with net use, the contents are stale. The scenario is:

1. net use Z: \\192.168.0.100\c$
2. Add a file to a directory on the C: drive on C:'s host machine
3. I don't see the file on the networked machines Z: drive.

It eventually appears but I can't figure out how to speed up this process when it occurs. Simply refreshing the directory does not help. Doing a "net use /d Z:" and re-adding it doesn't work either.

Any ideas what is causing this or how to fix it?

I sometimes use Terminal Services to remote into my work machine. Then, on my work machine, if I enter a Hyper-V window that's maximized, I can't figure out how to minimize the Hyper-V window to get back to my host machine. It's quite annoying.

Anyone know an easy way to do this?

Note: I'm also using a macbook pro keyboard to TS into the host machine.

Is it possible to have a machine behind a firewall AND have a public IP address? What is this called or where can I find more info?

My initial reaction is: No, this is not possible because if a machine is behind a firewall it will have private IP address and external communication will be via NAT.

Is there any reason to have 2 NICs on a server BESIDES the following cases?

1. You need to connect to 2 different physical networks
2. Redudancy (1 NIC fails, so you use the other)

Are there any other reasons?

1. I have in inbound rule to allow all communication with MyApp.exe
2. I have an outbound rule to block all traffic to 192.168.0.88

Can MyApp.exe communicate with 192.168.0.88 - I don't understand which rule takes precedence.