Questions[aws](ubuntu)

I'm trying to setup the wallet RPC for a Monero node, but when I use cURL to that port, I get this error:

curl: (1) Received HTTP/0.9 when not allowed

However, checking curl --version gives me this:

curl 7.68.0 (x86_64-pc-linux-gnu) libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3

I thought that error would only present when cURL was compiled without nghttp2. This is an AWS environment, running 20.04.

In both machines I usually operate on, one at home and another at work, Nautilus seens to work pretty fast when it comes to my local files. However, as soon as I connect it using the SSH option on Nautilus, it becomes really painfully slow, taking 2-5 seconds to open a folder, while a terminal ssh session would take just a fraction of a second to run a cd command. The same goes for copying files, with a cp being nearly instantaneous on terminal-SSH, while it takes a lot more in Nautilus.

The worse case, however, happens when i try to copy any of my local files to the remote side using Nautilus: it may take several minutes, maybe an hour, if the file (a tar, for example) is too big (500MB or bigger, let's say) while a sftp > put or scp would last seconds, or just a few minutes at worse.

Isn't Nautilus supposed to run the same SSH/SFTP connections and commands? If yes, why would it be considerably slower than the terminal on that?

Update: both of my machines were attempting to connect to the same server, which happens to be an AWS ec2 instance. Those two can use the nautilus remote session with no significant delay between them, only the AWS machine offers this kind of issue on both. While this may seen an AWS issue, I still don't see how can the SSH terminal be way faster than Nautilus even on AWS.

Update 2 : The same problem happens on pcmanfm, so this may be not a Nautilus problem after all.

I have several servers running with Xenial (16.04 LTS). I ran a security scanning tool (AWS Inspector) that shows a list of unpatched CVE vulnerabilities on the server. A lot of them relate to binutils, for example https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6323.html

I can see that on that Canonical link above the package update is marked as needed, however I do:

sudo apt-get update
sudo apt-get upgrade --dry-run

I see no patches. I have recently run an upgrade successfully, so nothing new to pick up. But binutils is still triggering the alert and is at version 2.26.1-1ubuntu1~16.04.8.

Is there a way to upgrade binutils to patch these vulnerabilities on Xenial? Or is this a false alarm?

I have an amazon micro instance which runs one or two things for me. The config is minimal, it mainly acts as a host for a java application and couchdb.

I tried to install curl today and got this message:

sudo apt-get install curl
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

So I ran the command using sudo:

sudo dpkg --configure -a
Setting up openjdk-6-jre-headless (6b20-1.9.1-1ubuntu3) ...

and it's been hanging there for a looooooong time. Top reports that a java process is using just about all of my CPU. Any ideas what this problem is and how I can fix it? Any ideas on what caused the issue?

My evil plan is to serve rdp from an AWS ubuntu instance so I can have a permanent xubuntu desktop as I roam from windows computer to windows computer (or any computer really). It is as easy as running mstsc -v {aws.public.url}.

How, through, ssh, can I have the instance serve a remote desktop?