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visits member for 5 years, 1 month
seen Aug 8 at 16:25

Aug
8
comment What's the default superuser username/password for postgres after a new install?
This won't change passwords for users in the Postgres database.
Aug
8
comment What's the default superuser username/password for postgres after a new install?
Use sudo instead of su.
Aug
8
comment What's the default superuser username/password for postgres after a new install?
It can be removed with passwd -l. Look it up: man passwd.
Aug
8
comment Why not assign the hostname to the loopback address in /etc/hosts?
I ran into the second case this morning. Configured a server to listen to the IP address given by its fully qualified domain name on a particular port, then tested the connection using telnet, then told a remote collaborator that the server was up and running. He couldn't connect. It turns out neither the server software nor telnet do a DNS lookup: both resolve to 127.0.1.1, so my telnet command was connecting, but no remote connections were possible.
Aug
5
answered network usage per user in linux
Jul
21
answered Vnc Viewer does not connecting but Windows Remote Desktop works
Jun
25
comment Give pthread_setschedparam() permissions to non-root user (linux)
It turns out this is far from trivial.
Apr
10
revised What is meant by mount point does not exist?
edited body
Feb
13
awarded  Excavator
Feb
13
revised What is the difference between OpenTSDB and Graphite?
add links ...
Feb
13
suggested suggested edit on What is the difference between OpenTSDB and Graphite?
Nov
28
comment sshd running at 100%
Snother idea is to check logs or issue lsof to find out whether any ssh connections are being made or attempted at that time.
Aug
5
comment How to block ports (in Linux) based on the IP used to connect?
My guess is that the downvote is because you didn't explain where exactly you got stuck. It's as if you didn't even try.
Aug
5
comment How to block ports (in Linux) based on the IP used to connect?
man iptables or use Google. I don't find this stuff (e.g. 'chains' in iptables) very easy but I do find the answers that way. BTW I think it's better and easier to just block all incoming traffic (rule 1) and then open port 80 (rule 2).
Jun
20
comment dspam vs spamassassin vs bogofilter
I hate this sort of answer. Provide some information!
Mar
28
comment Ubuntu - How can I see what an IP is doing in my server?
You can check out the ancestors of the process with pstree and you can see what it is doing at the system call level with strace.
Oct
18
comment Can a virtualized machine have the CPU and RAM resources of multiple underlying physical machines?
To be more precise: disks can be combined in this way (it makes sense, as network speed usually greatly exceeds disk access speed), while memory and CPUs cannot (the resulting virtual memory and virtual CPU would be too slow).
Oct
18
comment Open Source Terminal Server For Linux?
PS: Last montI i set up an Ubuntu 12.04 system, and I went looking for a way to provide GUI sessions from Windows machine. What I ended up with was the TightVnC server, which supports GUI sessions that can be connected to remotely, combined with xrdp, which provides a bridge to the RDP protocol, allowing the standard Windows Remote Desktop client to be used for access - and in addition, it makes TightVNC start a new session upon connecting and shut it down when the session is closed.
Oct
5
comment realtime sync of files between instances
It depends on what exactly you mean by 'in real time'.
Jul
9
revised Kill process by command name
capitals are inappropriate here