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Feb
4
awarded  Popular Question
Jan
28
comment Upgrading openssh-server within an ssh session
Forking a VM is duplicating the entire VM (disk image and config), so you'll have two VMs in the same state. You can then upgrade OpenSSH in the first VM, see how it behaves, and then discard the VM. In the 2nd VM OpenSSH is still not upgraded, but because of the experimenting with the first VM, you know what will happen if you upgrade.
Jan
28
comment Upgrading openssh-server within an ssh session
You can fork the VM using the UI of your VirtualBox or VMware. Linux shell knowledge is not needed.
Jan
28
comment Upgrading openssh-server within an ssh session
@IsmaelMiguel: If you have the sshd running in a VM, why don't you fork the VM and try the ssd upgrade, and report the results back here?
Nov
29
awarded  Caucus
Jul
2
awarded  Curious
Jun
1
awarded  Notable Question
Apr
4
comment How to add context menu entries on a Samba share
@MikeAWood: About what I am trying to solve: see the Convert to EPUB functionality in the question. Please note that there is no need to install an application to the Windows client, because the actual conversion would be run on the server side. All I need is an client-to-server-custom-RPC mechanism over Samba which can be instantiated on selected files from the context menu on the client.
Apr
3
comment How to add context menu entries on a Samba share
@MikeAWood: Is there a way to configure something on the Samba side, and make Windows pick it up as client-side changes when the share is mounted? (It doesn't have to be fully automatic, a few extra clicks by the user after the mount are OK.)
Mar
31
revised How to add context menu entries on a Samba share
added 66 characters in body
Mar
31
asked How to add context menu entries on a Samba share
Nov
8
comment DNAT from localhost (127.0.0.1)
@Lawrence: I'm trying to achieve that the connection initiated by telnet 127.0.0.1 4242 gets forwarded to 11.22.33.44:5353 by the kernel, without using a user-level port forwarder process. Sorry if this was not clear from the question.
Nov
8
comment DNAT from localhost (127.0.0.1)
@Adrien M.: Yes, this (with -j DNAT) is the standard solution, but it doesn't work for telnet 127.0.0.1 4242 (it works with all other local IP address), because Linux is dropping the response packets (see the details in the question). If you think you have a solution which solves the problem, please post it.
Nov
8
revised DNAT from localhost (127.0.0.1)
added 166 characters in body
Nov
8
comment DNAT from localhost (127.0.0.1)
Thank you for writing your answer. Unfortunately it doesn't solve my problem, because -j REDIRECT can't change the IP address, and I need to change it from 127.0.0.1 to 11.22.33.44. If I didn't need to change the IP address, it would work.
Nov
7
asked DNAT from localhost (127.0.0.1)
Oct
22
comment TCP packets larger than 4 KB don't get a reply from Linux
I've found online that in addition to ifconfig eth0 mtu 51000 I may also need a route ... mss 50800 command. I'll try if this helps.
Oct
22
comment TCP packets larger than 4 KB don't get a reply from Linux
How can a packet get lost after tcpdump in the guest has printed it? (There is no packet filtering set up in the guest.) I can try to fix the checksums. I didn't care much about them so far, because if I decreased the payload size by 50 bytes, everything went through.
Oct
21
comment TCP packets larger than 4 KB don't get a reply from Linux
As the tcpdump output shows, the guest Linux receives the TCP packet with the payload of 4060 bytes, but never sends an ACK. If I reduce the the payload size to 4010 bytes, I get an ACK (shows up in the tcpdump output and the host also gets it). ICMP works back and forth with frames of 50000 bytes. Knowing all these, could you please be more specific what I should try first, and what settings related to jumbo frames I should change? Is there some information I failed to provide, or is there another debug tool I should run?
Oct
20
awarded  Commentator