krissi's questions

I am managing some virtual desktops running Windows 7 Enterprise SP1 x64. When running any Java applications (tested on 7u13, 7u21 and 7u25) the windows are getting squeezed to the left.

The black area is the whole window. I am able to e.g. click the buttons when I hit the correct position in the black area.

This happens when using rdesktop 1.7.1, FreeRDP 1.0.1 and the client which is used by our Linux based thin clients (unsure which exactly, but I guess rdesktop, too). The native Windows 7 mstsc.exe does not show this behaviour. show this behaviour, too. The problem arises when the connection uses 16 bit color depth.

Unfortunately our (pretty old) thin clients work not so well when using 32bit color.

Any Ideas what causes this behaviour and how to solve it?

I want to create an augeas lens to modify mailman lists. The lists are stored in a binary file which can be exported to a plaintext file using config_list -o /tmp/config my_list and reimported by replacing -o by -i.

The goal is to build an augeas tree like this:

/mailman/my_list/real_name = "my mailman list"
/mailman/my_list/description = "This is my first list"
...
/mailman/another_list/real_name = "my other list"
/mailman/another_list/description = "This is just another list"
...

Is is possible to build a lens which produces the given tree by using the mailman commands list_lists and config_list?

Thanks, krissi

i have the following variables:

# config file
MYVAR_DEFAULT=123
MYVAR_FOO=456
#MYVAR_BAR unset

# program
USER_INPUT=FOO

TARGET_VAR=<need to be set>

If the USER_INPUT is "foo", I want TARGET_VAR to be the value of MYVAR_FOO (TARGET_VAR=456). If USER_INPUT is "bar" I want TARGET_VAR to be set to MYVAR_DEFAULT (123), because MYVAR_BAR is unset.

I prefer it to be sh-compatible and as a substitution string. But it might also be bash compatible and/or in a function.

I got these snippets:

# Default values for variable (sh-compatible)
echo ${MYVAR_FOO-$MYVAR_DEFAULT}

# Uppercase (bash compatible)
echo ${USER_INPUT^^}

I would need something like this:

TARGET_VAR="${MYVAR_${USER_INPUT^^}-$MYVAR_DEFAULT}"
# or
somecommand -foo "${MYVAR_${USER_INPUT^^}-$MYVAR_DEFAULT}"

This is to switch a bunch of variables between multiple "profiles". In the example, FOO and BAR are profiles. New profiles should be added easily, in this example there would be an implicit profile named BAZ, too, all variables to their default values.

Unfortunately it is not that easy. Do you have an idea to solve this?

Thanks in advance, krissi

I am building a iptables script for a router to block all traffic from and to the machines behind, except a small set of hosts/ports (RDP incoming, DNS outgoing, ...). HTTP and HTTPS is blocked.

Internet --- Router with iptables -+- Windows XP
                                   |
                                   +- Windows XP
                                   .
                                   .

Unfortunately with HTTP/S blocked the Windows Updates are failing. I want the Updates to be working and the surfing to be blocked. These are my thoughts:

• Setting up a WSUS/Proxy -> Oversized I think, would like to spare another server
• Getting a list of all Microsoft Update Servers -> Is there any?
• Getting rid of the Asterisks of the technet dns name list somehow and allow these hosts
• Maybe a way to do the HTTP-Filtering in with Windows Firewall and separate by service (Win XP SP3)?

Any other thoughts? Maybe someone has already solved this scenario? What would you recommend?

Thanks in advance

I am creating a debian package. This will have to alter /etc/inittab to switch tty1 from /sbin/getty to /sbin/rungetty.

Of course I can alter the line with an sed in the postinst. Is this the best way to do it or is there any debianish way to do it?

Thanks in advance

I added a new Network to a Debian 6.0.1 x86_64 Linux 2.6.32-5-amd64 Server with this configuration in the interfaces:

allow-hotplug eth2
iface eth2 inet static
  address 172.251.1.86
  netmask 255.255.255.248
  network 172.251.1.80    #(tried with and without)
  broadcast 172.251.1.87  #(tried with and without)

The other interfaces are classical, static declarations. bridge-utils is installed but no br-device is enabled.

After ifup:

2: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether e4:1f:13:6d:36:98 brd ff:ff:ff:ff:ff:ff
    inet 172.251.1.86 peer 172.251.1.1/29 brd 172.251.1.87 scope global eth2
    inet6 fe80::e61f:13ff:fe6d:3698/64 scope link 
       valid_lft forever preferred_lft forever

I expect this route to be added automatically:

...
172.251.1.80    0.0.0.0         255.255.255.248 U     0      0        0 eth2
...

But this route is added:

...
172.251.1.0     0.0.0.0         255.255.255.248 U     0      0        0 eth2
...

Of course I can add some up-lines to the interfaces file to fix the routes. I'm just wondering if I am missing something. Maybe some cache to flush, a typo I am missing since hours, or just a misunderstanding.

Thanks in advance

I created a few sieve (dovecot implementation) filter scripts and want to test them using sieve-test.

All scripts which are using global includes are failing with the following message

Error: sieve: include: sieve_global_dir not set for :global script include (wanted script 'bugzilla.sieve')

The sieve_global_dir is set in dovecot.conf and the include works when started by deliver.

How to define sieve_global_dir that it is read by sieve-test and sievec?

Thanks in advance

I often copy many files between 2 servers connected via 1GBit ethernet while I am connected via VPN and SSH over DSL. The problem is, that the verbose output (1 line per copied file) which needs to be sent over the slow connection to my ssh client and slows down the copy operation (it feels for me this way)

I tested this with a testfile created via

dd if=/dev/urandom | base64 | dd of=testfile count=10M bs=1

Testing run A (no output)

# time sh -c 'cat testfile > /dev/null'
sh -c 'cat testfile > /dev/null'  0.00s user 0.02s system 97% cpu 0.025 total

Testing run B (all output via ssh/vpn)

# time sh -c 'cat testfile'
sh -c 'cat testfile'  0.00s user 0.45s system 0% cpu 4:31.10 total

(I know, its not a good test, but it demonstrates the problem)

Is there a way not to slow down the operation and get the output asyncronously. I imagined something like dropping all lines except a specified count per second or something like this.

At the moment I start screen and detach while the operation is running.

I am using putty for windows and the openssh-client for linux access

Any ideas?