Imrank's questions

A month ago, not sure how but maybe ClamAV got installed during the software update 'apt-get update' & apt-get upgrade'

I complete tried to remove the clamAV using remove or purge, then followed below command to completely remove the package from webpage: https://ubuntuforums.org/showthread.php?t=1114606:

sudo apt-get --purge remove clamav clamav-base clamav-daemon clamav-freshclam libclamav2

now I do not find anything on clamav in my system

ikhan@ik0:~$ apt list --installed | grep clam
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

ikhan@ik0:~$ apt list --installed | grep fresh
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
     
ikhan@ik0:~$ dpkg --list | grep clam
ikhan@ik0:~$ 
ikhan@ik0:~$ dpkg --list | grep fresh
ikhan@ik0:~$ 

But I keep getting this pop-up about the ClamAV daemon is not installed.

Could someone help to completely remove it !!

I have a scenario: i will have to protect my network from unsolicited access from my DMZ machine, configure node-A to allow new connections on port 1915/tcp from hosts (obtained by 'getent hosts node-B') but disallow any other access from or to node-B.

I am unable to find any port details by 'getent hosts node-B', how to perform this using iptables?

How can I ensure that:

• in NFS folders shared from machine-1, the directory creation mask is set to 600 or 622

• in NFS folder shared from machine-1 the file creation mask is set to 700 or 770

Could somebody assist me in creating a persistent symlink for the block devices, using udev ?

I have a cloud server, where I can attach a separate device (/dev/xvdb) as a storage.

I want to create a persistent symlink (/dev/test_link) which should always target to /dev/xvdb storage.

Regards,

Let suppose, my admin has configured a NFS server( he is being HOST) in a domain network 192.168.1.0.

I am being a member of the same domain 192.168.1.0, would like to setup NFS Client on my laptop.

Consider, that I do not know the NFS server IP on me, so how would I find the NFS server(host) IP now.

This evening I was working and mistakenly pressed the print-screen button, didn't understand if I won't save it would cause me this issue.

At the moment my screen has this grey vertical line, and my logs are flooded by below messages:

Mar 11 23:16:45 ik0 gnome-session[2943]: (eog:4704): EOG-WARNING **: Failed to open file '/home/ik/.cache/thumbnails/normal/a01ae0877394f13026ab01f9eae1181c.png': No such file or directory

Mar 11 23:16:46 ik0 gnome-session[2943]: (eog:4704): EOG-WARNING **: Failed to open file '/home/ik/.cache/thumbnails/normal/6001204b04afaf0cfeb1eba96f162d83.png': No such file or directory

Mar 11 23:16:46 ik0 gnome-session[2943]: (eog:4704): EOG-WARNING **: Failed to open file '/home/ik/.cache/thumbnails/normal/b0b9da5b06593da5ed2f3357d046e539.png': No such file or directory

Mar 11 23:29:35 ik0 gnome-session[2943]: (eog:4985): EOG-WARNING **: Failed to open file '/home/ik/.cache/thumbnails/normal/ee3821784782d33725fa45a58d6d55e4.png': No such file or directory

Mar 11 23:35:14 ik0 gnome-session[2943]: (nautilus:3134): Gtk-WARNING **: Attempting to read the recently used resources file at '/home/ik/.local/share/recently-used.xbel', but the parser failed: Failed to open file '/home/ik/.local/share/recently-used.xbel': Permission denied.

Mar 11 23:35:14 ik0 gnome-session[2943]: (zeitgeist-datahub:3646): Gtk-WARNING **: Attempting to read the recently used resources file at '/home/ik/.local/share/recently-used.xbel', but the parser failed: Failed to open file '/home/ik/.local/share/recently-used.xbel': Permission denied.

I tried killing the gnome-screenshot processes by searching it with:

ps aux | grep gnome-screenshot

as suggested in: this post but it results in "No process Found".

Please find attached my screen for viewing the issue:

Also below info on graphics driver from lshw:

*-display
     description: VGA compatible controller
     product: 4th Gen Core Processor Integrated Graphics Controller
     vendor: Intel Corporation
     physical id: 2
     bus info: pci@0000:00:02.0
     version: 06
     width: 64 bits
     clock: 33MHz
     capabilities: vga_controller bus_master cap_list rom
     configuration: driver=i915 latency=0
     resources: irq:28 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:3000(size=64)

Could anyone please help.!

I have two ubuntu machines with 16.04

• ikayyy@ubuntuPC:~$ (test-PC) > 172.16.61.16/24
• ik@ik0:~$ (main-PC) > 172.16.61.14/24

From my main-PC, I would like to access the GUI of test-PC.

On the test-PC, modified "/etc/ssh/sshd_config" file, and added > "AllowTcpForwarding yes" field in the file and restarted the ssh services.

Since, both the machines are in the same network I didn't add any routes.

When I run this command: ik@ik0:~$ ssh -vv -4 [email protected] -L 8091:localhost:80 it connects to the test-PC well.

But when I try accessing the GUI via trying > localhost:8091 in the browser, it shows the errors, attached in a text file. the logs attached

If someone please help me accessing the GUI of the other machine i will be grateful.

I would like to know if you have a file name > abc (1).bin or > abc (1).txt files, how do you read them. The files are with the space and bracket before the .bin or .txt extension.

To read the .bin file I have a tool, I can read it easily if I remove the "space and (1)" from the filename. But when I have this space and bracket (1).bin name, I can not read it.

When I cat a .txt file, it works.. but it doesn't work with the .bin file. Below are the requested tests:

$ cat full_logs-10.2.0.103-2018.02.07\ \(1\).txt 
hello,
this is a test.

--------xxxxxxx------xxxxxxx------------xxxxxxx--------

$ LogAnalyzeRebirth -p -x ./ full_logs-2018.02.07\ \(1\).bin 
usage: LogAnalyzeRebirth [-h] [-A] [-B] [-C] [-D] [-E] [-F]
                         [-G GRAPH [GRAPH ...]] [-H] [-I [HISTOGRAM]] [-L]
                         [-M] [-N] [-P [PDF]] [-R] [-S] [-T] [-U] [-V] [-b]
                         [-c] [-e] [--moo] [-f] [-g] [-i] [-k] [-l] [-m] [-n]
                         [-o] [-p PATH] [-q] [-r] [-s] [-t] [-v] [-x EXTRACT]
                         [-z]
LogAnalyzeRebirth: error: argument -p/--path: expected 1 argument(s)

--------xxxxxxx------xxxxxxx------------xxxxxxx--------

$ LogAnalyzeRebirth.py -p ./ -x "full_logs-10.2.0.103-2018.02.07 (1).bin" 

(\ /)                      (\ /)
( . .)      LogAnalyzeRebirth     (. . )
c(")(")                  (")(")o

sh: 1: Syntax error: "(" unexpected
sh: 1: Syntax error: "(" unexpected
sh: 1: Syntax error: "(" unexpected
Extract failed.
LogAnalyzeRebirth can't find full_logs-10.2.0.103-2018.02.07 (1).bin
No such file or directory : ./full_logs-10.2.0.103-2018.02.07 (1)/dmesg

---   Firmware_version   ---

No such file or directory : ./full_logs-10.2.0.103-2018.02.07 (1)/version.txt

--------xxxxxxx------xxxxxxx------------xxxxxxx--------

I am writing to save others time if they get into an issue and end up in Emergency Mode due to a corrupt entry in /etc/fstab.

This has already been asked, but I couldn't get the resolution quickly and had to dig a lot.

Let me redo this, I was accessing a sever via ssh, i can access the server easily from my system (the server is in my local network). I tried copying a file from my local system to my server and it failed due to an error (permission denied). And now I do not want to dig whats wrong and instead want to get that file(which is on my system) from my server directly to which I am ssh'd into.

Old questions: /* I am using scp as a root, tried all the things but unable to copy files from my system to the remote server (to which I am logged-in via ssh from the same system). Let say i want to get the files from my system while being on ssh'd server, how do i do it.*

I am trying to install htop, but it was failed due to unmet dependencies. Tried sudo apt-get -f install, but it did not either resolve the issue.

Tried sudo apt clean & sudo apt update, sudo apt upgrade, no luck. Tried removing the dpkg as well, no luck.

Earlier it was displaying, Could not get lock /var/lib/dpkg/lock so that I have removed it and now it shows below error ain the installation.

Sub-process /usr/bin/dpkg returned an error code (1)

ik@ik-ThinkPad-T440p:~$ sudo apt install htop
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 linux-image-extra-4.4.0-64-generic : Depends: linux-image-4.4.0-64-generic but it is not going to be installed
 linux-image-generic : Depends: linux-image-4.4.0-64-generic but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
ik@ik-ThinkPad-T440p:~$ 
ik@ik-ThinkPad-T440p:~$ sudo apt-get -f install 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  geoip-database-extra javascript-common libc-ares2 libjs-openlayers libnl-route-3-200 libqgsttools-p1 libqt5multimedia5-plugins libqt5multimediawidgets5 libsmi2ldbl libwireshark-data libwireshark6
  libwiretap5 libwsutil6 linux-headers-4.4.0-21 linux-headers-4.4.0-21-generic linux-headers-4.4.0-59 linux-headers-4.4.0-59-generic linux-image-4.4.0-21-generic linux-image-4.4.0-59-generic
  linux-image-extra-4.4.0-21-generic linux-image-extra-4.4.0-59-generic wireshark-common
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  linux-image-4.4.0-64-generic
Suggested packages:
  fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following NEW packages will be installed:
  linux-image-4.4.0-64-generic
0 upgraded, 1 newly installed, 0 to remove and 89 not upgraded.
6 not fully installed or removed.
Need to get 21.8 MB of archives.
After this operation, 66.4 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://mirrors.nayatel.com/ubuntu xenial-updates/main amd64 linux-image-4.4.0-64-generic amd64 4.4.0-64.85 [21.8 MB]
Fetched 21.8 MB in 1min 5s (335 kB/s)                                                                                                                                                                      
debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
(Reading database ... 326141 files and directories currently installed.)
Preparing to unpack .../linux-image-4.4.0-64-generic_4.4.0-64.85_amd64.deb ...
debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
dpkg: error processing archive /var/cache/apt/archives/linux-image-4.4.0-64-generic_4.4.0-64.85_amd64.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.0-64-generic /boot/vmlinuz-4.4.0-64-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.4.0-64-generic /boot/vmlinuz-4.4.0-64-generic
Errors were encountered while processing:
 /var/cache/apt/archives/linux-image-4.4.0-64-generic_4.4.0-64.85_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

These are the output of the commands, please help me fix this. p:~$ df -H Filesystem Size Used Avail Use% Mounted on udev 4.1G 0 4.1G 0% /dev tmpfs 805M 19M 787M 3% /run /dev/sda7 293G 14G 264G 5% / tmpfs 4.1G 201M 3.9G 5% /dev/shm tmpfs 5.3M 4.1k 5.3M 1% /run/lock tmpfs 4.1G 0 4.1G 0% /sys/fs/cgroup /dev/loop0 62M 62M 0 100% /snap/notes/4 /dev/loop3 79M 79M 0 100% /snap/core/1337 /dev/loop2 80M 80M 0 100% /snap/core/1264 /dev/loop1 80M 80M 0 100% /snap/core/1240 tmpfs 805M 62k 805M 1% /run/user/1000