Back to the future

К***

Я помню чудное мгновенье:
Передо мной явилась ты,
Как мимолетное виденье,
Как гений чистой красоты.

В томленьях грусти безнадежной,
В тревогах шумной суеты,
Звучал мне долго голос нежный
И снились милые черты.

Шли годы. Бурь порыв мятежный
Рассеял прежние мечты,
И я забыл твой голос нежный,
Твои небесные черты.

В глуши, во мраке заточенья
Тянулись тихо дни мои
Без божества, без вдохновенья,
Без слез, без жизни, без любви.

Душе настало пробужденье:
И вот опять явилась ты,
Как мимолетное виденье,
Как гений чистой красоты.

И сердце бьется в упоенье,
И для него воскресли вновь
И божество, и вдохновенье,
И жизнь, и слезы, и любовь.

No title

В Африка всяка сутрин газелата се събужда с мисълта, че трябва да надбяга най-бързия лъв, за да остане жива.
Всяка сутрин африканският лъв се събужда с мисълта, че трябва да надбяга най-бавната газела, за да не умре от глад.

TFTP

Trivial File Transfer Protocol (TFTP), which is defined in RFC 1350 (obsoletes RFC 783). Its name says it all; it is trivial in comparison with its more robust relative, FTP. Its trivial nature can be seen in the following limitations:

• Runs on top of UDP (port 69), unlike FTP
• Provides no user authentication
• Cannot list directories
• Limited header

 TFTP uses a 2-byte op-code header that follows immediately after the IP and UDP headers. 

Figure 4.

There are five types of operational codes:

• RRQ Read Request
• WRQ Write Request
• DATA
• ACK Acknowledgement
• ERROR

If an error occurs, there will also be an error number given. There are three bits reserved for error codes, giving values 0 - 7.
0 - Not defined
1 - File not found
2 - Access violation
3 - Disk full
4 - Illegal operation
5 - Unknown transfer id
6 - File already exists
7 - No such user

How people working

To prepare for the restructuring process, the Active Directory deployment team must obtain the necessary design information from the Active Directory design team

Това е от MS Best Practice... в конкретният случай за ADMT ама все пак... как работят хората само - AD deployment team, че AD design team ... не както до сега ми се е случвало AIO+бай Иван дето копа (доакто менажерите покрай него гледат давайки акъл)

Sony MDR-RF800

Явно съм свикнал с удобството и комфорта от безжичното аудио... След като на предните слушалки им се счупи лявото "слушало" и опита за поправянето му беше не успешен се добих с тези.
Това което ми харесва:
1. По-леки са (спрямо предните)
2. Обхвата е по-голям
3. По-"гъвкави" и предполагам по-чупливоустойчиви
4. Качеството на звука е по-добро (ниодимовите магнити явно оказват влияние)
5. При липса на сигнал не се чува никакъв "бял" шум
Това което не ми харесва (спрямо предните и по принцип):
1. Не стоят толкова стегнати на главата колкото предните (може и да не е толкова голям минус колкото ми изглежда в момента)
2. Нямат стойка на която да ги прибирам което означава, че ще се мандахерцат из бюрото насам-натам
3. Зареждането на батериите става през семплият предавател с едно 20 см кабелче хардкоднато в малкият и лекият предавател
4.Индикатора за заряд на батерията е ... червено светодиодче - сиреч пак нямам дори ориентировъчна индикация на това колко време слушане ми остава
5. Няма индикатор кога работят (приемат сигнал) така, че не мога да разбера дали се изключват при липса на входящ сигнал

vSphere client under Windows 7

Solution-a намерих тук
Files съответно : System.dll и VpxClient.cmd

Blog from MS Windows 7 Writer

Just a test blog entry

Useful *nix commands - grep

Get a Grip on the Grep! – 15 Practical Grep Command Examples

by SathiyaMoorthy on March 26, 2009
Grip on the Unix Grep Command
Photo courtesy of Alexôme's

This is part of the on-going 15 Examples series, where 15 detailed
examples will be provided for a specific command or functionality.
Earlier we discussed 15 practical examples for Linux find command, Linux
command line history and mysqladmin command.

In this article let us review 15 practical examples of Linux grep
command that will be very useful to both newbies and experts.

First create the following demo_file that will be used in the examples
below to demonstrate grep command.

$ cat demo_file
THIS LINE IS THE 1ST UPPER CASE LINE IN THIS FILE.
this line is the 1st lower case line in this file.
This Line Has All Its First Character Of The Word With Upper Case.

Two lines above this line is empty.
And this is the last line.

1. Search for the given string in a single file

The basic usage of grep command is to search for a specific string in
the specified file as shown below.

Syntax:
grep "literal_string" filename

$ grep "this" demo_file
this line is the 1st lower case line in this file.
Two lines above this line is empty.

2. Checking for the given string in multiple files.

Syntax:
grep "string" FILE_PATTERN

This is also a basic usage of grep command. For this example, let us
copy the demo_file to demo_file1. The grep output will also include the
file name in front of the line that matched the specific pattern as
shown below. When the Linux shell sees the meta character, it does the
expansion and gives all the files as input to grep.

$ cp demo_file demo_file1

$ grep "this" demo_*
demo_file:this line is the 1st lower case line in this file.
demo_file:Two lines above this line is empty.
demo_file:And this is the last line.
demo_file1:this line is the 1st lower case line in this file.
demo_file1:Two lines above this line is empty.
demo_file1:And this is the last line.

3. Case insensitive search using grep -i

Syntax:
grep -i "string" FILE

This is also a basic usage of the grep. This searches for the given
string/pattern case insensitively. So it matches all the words such as
"the", "THE" and "The" case insensitively as shown below.

$ grep -i "the" demo_file
THIS LINE IS THE 1ST UPPER CASE LINE IN THIS FILE.
this line is the 1st lower case line in this file.
This Line Has All Its First Character Of The Word With Upper Case.
And this is the last line.

4. Match regular expression in files

Syntax:
grep "REGEX" filename

This is a very powerful feature, if you can use use regular expression
effectively. In the following example, it searches for all the pattern
that starts with "lines" and ends with "empty" with anything in-between.
i.e To search "lines[anything in-between]empty" in the demo_file.

$ grep "lines.*empty" demo_file
Two lines above this line is empty.

From documentation of grep: A regular expression may be followed by one
of several repetition operators:

* ? The preceding item is optional and matched at most once.
* * The preceding item will be matched zero or more times.
* + The preceding item will be matched one or more times.
* {n} The preceding item is matched exactly n times.
* {n,} The preceding item is matched n or more times.
* {,m} The preceding item is matched at most m times.
* {n,m} The preceding item is matched at least n times, but not more
than m times.

5. Checking for full words, not for sub-strings using grep -w

If you want to search for a word, and to avoid it to match the
substrings use -w option. Just doing out a normal search will show out
all the lines.

The following example is the regular grep where it is searching for
"is". When you search for "is", without any option it will show out
"is", "his", "this" and everything which has the substring "is".

$ grep -i "is" demo_file
THIS LINE IS THE 1ST UPPER CASE LINE IN THIS FILE.
this line is the 1st lower case line in this file.
This Line Has All Its First Character Of The Word With Upper Case.
Two lines above this line is empty.
And this is the last line.

The following example is the WORD grep where it is searching only for
the word "is". Please note that this output does not contain the line
"This Line Has All Its First Character Of The Word With Upper Case",
even though "is" is there in the "This", as the following is looking
only for the word "is" and not for "this".

$ grep -iw "is" demo_file
THIS LINE IS THE 1ST UPPER CASE LINE IN THIS FILE.
this line is the 1st lower case line in this file.
Two lines above this line is empty.
And this is the last line.

6. Displaying lines before/after/around the match using grep -A, -B and -C

When doing a grep on a huge file, it may be useful to see some lines
after the match. You might feel handy if grep can show you not only the
matching lines but also the lines after/before/around the match.

Please create the following demo_text file for this example.

$ cat demo_text
4. Vim Word Navigation

You may want to do several navigation in relation to the words, such as:

* e - go to the end of the current word.
* E - go to the end of the current WORD.
* b - go to the previous (before) word.
* B - go to the previous (before) WORD.
* w - go to the next word.
* W - go to the next WORD.

WORD - WORD consists of a sequence of non-blank characters, separated
with white space.
word - word consists of a sequence of letters, digits and underscores.

Example to show the difference between WORD and word

* 192.168.1.1 - single WORD
* 192.168.1.1 - seven words.

6.1 Display N lines after match

-A is the option which prints the specified N lines after the match as
shown below.

Syntax:
grep -A "string" FILENAME

The following example prints the matched line, along with the 3 lines
after it.

$ grep -A 3 -i "example" demo_text
Example to show the difference between WORD and word

* 192.168.1.1 - single WORD
* 192.168.1.1 - seven words.

6.2 Display N lines before match

-B is the option which prints the specified N lines before the match.

Syntax:
grep -B <N> "string" FILENAME

When you had option to show the N lines after match, you have the -B
option for the opposite.

$ grep -B 2 "single WORD" demo_text
Example to show the difference between WORD and word

* 192.168.1.1 - single WORD

6.3 Display N lines around match

-C is the option which prints the specified N lines before the match. In
some occasion you might want the match to be appeared with the lines
from both the side. This options shows N lines in both the side(before &
after) of match.

$ grep -C 2 "Example" demo_text
word - word consists of a sequence of letters, digits and underscores.

Example to show the difference between WORD and word

* 192.168.1.1 - single WORD

7. Highlighting the search using GREP_OPTIONS

As grep prints out lines from the file by the pattern / string you had
given, if you wanted it to highlight which part matches the line, then
you need to follow the following way.

When you do the following export you will get the highlighting of the
matched searches. In the following example, it will highlight all the
this when you set the GREP_OPTIONS environment variable as shown below.

$ export GREP_OPTIONS='--color=auto' GREP_COLOR='100;8'

$ grep this demo_file
this line is the 1st lower case line in this file.
Two lines above this line is empty.
And this is the last line.

8. Searching in all files recursively using grep -r

When you want to search in all the files under the current directory and
its sub directory. -r option is the one which you need to use. The
following example will look for the string "ramesh" in all the files in
the current directory and all it's subdirectory.

$ grep -r "ramesh" *

9. Invert match using grep -v

You had different options to show the lines matched, to show the lines
before match, and to show the lines after match, and to highlight match.
So definitely You'd also want the option -v to do invert match.

When you want to display the lines which does not matches the given
string/pattern, use the option -v as shown below. This example will
display all the lines that did not match the word "go".

$ grep -v "go" demo_text
4. Vim Word Navigation

You may want to do several navigation in relation to the words, such as:

WORD - WORD consists of a sequence of non-blank characters, separated
with white space.
word - word consists of a sequence of letters, digits and underscores.

Example to show the difference between WORD and word

* 192.168.1.1 - single WORD
* 192.168.1.1 - seven words.

10. display the lines which does not matches all the given pattern.

Syntax:
grep -v -e "pattern" -e "pattern"

$ cat test-file.txt
a
b
c
d

$ grep -v -e "a" -e "b" -e "c" test-file.txt
d

11. Counting the number of matches using grep -c

When you want to count that how many lines matches the given
pattern/string, then use the option -c.

Syntax:
grep -c "pattern" filename

$ grep -c "go" demo_text
6

When you want do find out how many lines matches the pattern

$ grep -c this demo_file
3

When you want do find out how many lines that does not match the pattern

$ grep -v -c this demo_file
4

12. Display only the file names which matches the given pattern using
grep -l

If you want the grep to show out only the file names which matched the
given pattern, use the -l (lower-case L) option.

When you give multiple files to the grep as input, it displays the names
of file which contains the text that matches the pattern, will be very
handy when you try to find some notes in your whole directory structure.

$ grep -l this demo_*
demo_file
demo_file1

13. Show only the matched string

By default grep will show the line which matches the given
pattern/string, but if you want the grep to show out only the matched
string of the pattern then use the -o option.

It might not be that much useful when you give the string straight
forward. But it becomes very useful when you give a regex pattern and
trying to see what it matches as

$ grep -o "is.*line" demo_file
is line is the 1st lower case line
is line
is is the last line

14. Show the position of match in the line

When you want grep to show the position where it matches the pattern in
the file, use the following options as

Syntax:
grep -o -b "pattern" file

$ cat temp-file.txt
12345
12345

$ grep -o -b "3" temp-file.txt
2:3
8:3

Note: The output of the grep command above is not the position in the
line, it is byte offset of the whole file.
15. Show line number while displaying the output using grep -n

To show the line number of file with the line matched. It does 1-based
line numbering for each file. Use -n option to utilize this feature.

$ grep -n "go" demo_text
5: * e - go to the end of the current word.
6: * E - go to the end of the current WORD.
7: * b - go to the previous (before) word.
8: * B - go to the previous (before) WORD.
9: * w - go to the next word.
10: * W - go to the next WORD.

Useful *nix commands - find

**1. Find Files Using Name

This is a basic usage of the find command. This example finds all files
with name — MyCProgram.c in the current directory and all it's
sub-directories.
# find -name "MyCProgram.c"
./backup/MyCProgram.c
./MyCProgram.c
2. Find Files Using Name and Ignoring Case
This is a basic usage of the find command. This example finds all files
with name — MyCProgram.c (ignoring the case) in the current directory
and all it's sub-directories.
# find -iname "MyCProgram.c"
./mycprogram.c
./backup/mycprogram.c
./backup/MyCProgram.c
./MyCProgram.c
3. Limit Search To Specific Directory Level Using mindepth and maxdepth
Find the passwd file under all sub-directories starting from root directory.
# find / -name passwd
./usr/share/doc/nss_ldap-253/pam.d/passwd
./usr/bin/passwd
./etc/pam.d/passwd
./etc/passwd
Find the passwd file under root and one level down. (i.e root — level 1,
and one sub-directory — level 2)
# find -maxdepth 2 -name passwd
./etc/passwd
Find the passwd file under root and two levels down. (i.e root — level
1, and two sub-directories — level 2 and 3 )
# find / -maxdepth 3 -name passwd
./usr/bin/passwd
./etc/pam.d/passwd
./etc/passwd
Find the password file between sub-directory level 2 and 4.
# find -mindepth 3 -maxdepth 5 -name passwd
./usr/bin/passwd
./etc/pam.d/passwd
4. Executing Commands on the Files Found by the Find Command.
In the example below, the find command calculates the md5sum of all the
files with the name MyCProgram.c (ignoring case). {} is replaced by the
current file name.
# find -iname "MyCProgram.c" -exec md5sum {} \;
d41d8cd98f00b204e9800998ecf8427e ./mycprogram.c
d41d8cd98f00b204e9800998ecf8427e ./backup/mycprogram.c
d41d8cd98f00b204e9800998ecf8427e ./backup/MyCProgram.c
d41d8cd98f00b204e9800998ecf8427e ./MyCProgram.c
5. Inverting the match.
Shows the files or directories whose name are not MyCProgram.c .Since
the maxdepth is 1, this will look only under current directory.
# find -maxdepth 1 -not -iname "MyCProgram.c"
./MybashProgram.sh
./create_sample_files.sh
./backup
./Program.c
6. Finding Files by its inode Number.
Every file has an unique inode number, using that we can identify that
file. Create two files with similar name. i.e one file with a space at
the end.
# touch "test-file-name"
# touch "test-file-name "
[Note: There is a space at the end]
# ls -1 test*
test-file-name
test-file-name
From the ls output, you cannot identify which file has the space at the
end. Using option -i, you can view the inode number of the file, which
will be different for these two files.
# ls -i1 test*
16187429 test-file-name
16187430 test-file-name
You can specify inode number on a find command as shown below. In this
example, find command renames a file using the inode number.
# find -inum 16187430 -exec mv {} new-test-file-name \;
# ls -i1 *test*
16187430 new-test-file-name
16187429 test-file-name
You can use this technique when you want to do some operation with the
files which are named poorly as shown in the example below. For example,
the file with name — file?.txt has a special character in it. If you try
to execute "rm file?.txt", all the following three files will get
removed. So, follow the steps below to delete only the "file?.txt" file.
# ls
file1.txt file2.txt file?.txt
Find the inode numbers of each file.
# ls -i1
804178 file1.txt
804179 file2.txt
804180 file?.txt
Use the inode number to remove the file that had special character in it
as shown below.
# find -inum 804180 -exec rm {} \;
# ls
file1.txt file2.txt
[Note: The file with name "file?.txt" is now removed]
7. Find file based on the File-Permissions
Following operations are possible.
* Find files that match exact permission
* Check whether the given permission matches, irrespective of other
permission bits
* Search by giving octal / symbolic representation
For this example, let us assume that the directory contains the
following files. Please note that the file-permissions on these files
are different.
# ls -l
total 0
-rwxrwxrwx 1 root root 0 2009-02-19 20:31 all_for_all
-rw-r--r-- 1 root root 0 2009-02-19 20:30 everybody_read
---------- 1 root root 0 2009-02-19 20:31 no_for_all
-rw------- 1 root root 0 2009-02-19 20:29 ordinary_file
-rw-r----- 1 root root 0 2009-02-19 20:27 others_can_also_read
----r----- 1 root root 0 2009-02-19 20:27 others_can_only_read
Find files which has read permission to group. Use the following command
to find all files that are readable by the world in your home directory,
irrespective of other permissions for that file.
# find . -perm -g=r -type f -exec ls -l {} \;
-rw-r--r-- 1 root root 0 2009-02-19 20:30 ./everybody_read
-rwxrwxrwx 1 root root 0 2009-02-19 20:31 ./all_for_all
----r----- 1 root root 0 2009-02-19 20:27 ./others_can_only_read
-rw-r----- 1 root root 0 2009-02-19 20:27 ./others_can_also_read
Find files which has read permission only to group.
# find . -perm g=r -type f -exec ls -l {} \;
----r----- 1 root root 0 2009-02-19 20:27 ./others_can_only_read
Find files which has read permission only to group [ search by octal ]
# find . -perm 040 -type f -exec ls -l {} \;
----r----- 1 root root 0 2009-02-19 20:27 ./others_can_only_read
8. Find all empty files (zero byte file) in your home directory and it's
subdirectory
Most files of the following command output will be lock-files and place
holders created by other applications.
# find ~ -empty
List all the empty files only in your home directory.
# find . -maxdepth 1 -empty
List only the non-hidden empty files only in the current directory.
# find . -maxdepth 1 -empty -not -name ".*"
9. Finding the Top 5 Big Files
The following command will display the top 5 largest file in the current
directory and it's subdirectory. This may take a while to execute
depending on the total number of files the command has to process.
# find . -type f -exec ls -s {} \; | sort -n -r | head -5
10. Finding the Top 5 Small Files
Technique is same as finding the bigger files, but the only difference
the sort is ascending order.
# find . -type f -exec ls -s {} \; | sort -n | head -5
In the above command, most probably you will get to see only the ZERO
byte files ( empty files ). So, you can use the following command to
list the smaller files other than the ZERO byte files.
# find . -not -empty -type f -exec ls -s {} \; | sort -n | head -5
11. Find Files Based on file-type using option -type
Find only the socket files.
# find . -type s
Find all directories
# find . -type d
Find only the normal files
# find . -type f
Find all the hidden files
# find . -type f -name ".*"
Find all the hidden directories
# find -type d -name ".*"
12. Find files by comparing with the modification time of other file.
Show files which are modified after the specified file. The following
find command displays all the files that are created/modified after
ordinary_file.
# ls -lrt
total 0
-rw-r----- 1 root root 0 2009-02-19 20:27 others_can_also_read
----r----- 1 root root 0 2009-02-19 20:27 others_can_only_read
-rw------- 1 root root 0 2009-02-19 20:29 ordinary_file
-rw-r--r-- 1 root root 0 2009-02-19 20:30 everybody_read
-rwxrwxrwx 1 root root 0 2009-02-19 20:31 all_for_all
---------- 1 root root 0 2009-02-19 20:31 no_for_all
# find -newer ordinary_file
./everybody_read
./all_for_all
./no_for_all
13. Find Files by Size
Using the -size option you can find files by size.
Find files bigger than the given size
# find ~ -size +100M
Find files smaller than the given size
# find ~ -size -100M
Find files that matches the exact given size
# find ~ -size 100M
Note: – means less than the give size, + means more than the given size,
and no symbol means exact given size.
14. Remove big archive files using find command
The following command removes *.zip files that are over 100M.
# find / -type f -name *.zip -size +100M -exec rm -i {} \;"
Remove all *.tar file that are over 100M using the alias rm100m (Remove
100M). Use the similar concepts and create alias like rm1g, rm2g, rm5g
to remove file size greater than 1G, 2G and 5G respectively.
# alias rm100m="find / -type f -name *.tar -size +100M -exec rm -i {} \;"
# alias rm1g="find / -type f -name *.tar -size +1G -exec rm -i {} \;"
# alias rm2g="find / -type f -name *.tar -size +2G -exec rm -i {} \;"
# alias rm5g="find / -type f -name *.tar -size +5G -exec rm -i {} \;"

# rm100m
# rm1g
# rm2g
# rm5g

Първи учебен ден

след много време отново...
Чувството е като в гора - професорите - пънове, колегите чворове тук
таме по някое цвете
Общото впечатление, че това задочното обучение за магистърска степен е
измикярска работа ... предполагам, че и за другите степени е така. За
мноооого кратко време се опитват да набутат много материал и в крайна
сметка зубриш нещо, за да вземеш някакви изпити някак си. Никой на сила
не може да ме нуачи на нещо, но 24 часа просто не стигат...

Windows 2008 Server

Нема такова животно!

Случвало ми се е и преди да работя с Windows като сървърна OS, дори
веднъж гледах в Youtube как един хакер инсталира 2003, ама това е нищо
в сравнение с усещането да седнеш пред 2к8 с administrator
credentials... малко са общите неща с 2к3 и като идеология, и като
реализиция и като... де да знам scope of practice. Може да съм толкова
впечатлен защото моето journey с 2008 тепърва започва и още не съм успял да настъпя достатъчно "грабли", но поживем - увидем

Office stuffs

Уважаеми Колеги,
Бихме желали да Ви информираме, че нашият колега г-н ХХХХ ХХХХ – старши мрежов администратор, напуска ХХХХ считано от 12.11.2009 год.
Използваме това възможността с писмо, да му благодарим за свършеното досега и да му пожелаем успех във всички негови бъдещи начинания.

И... някои в офиса се радват, на други им е през ... Лично аз по-скоро съжалявам.... независимо какъв човек/колега/приятел е той е доста технически грамотен тип (за да вземеш CCIE със сигурност знаеш поне да четеш и да пишеш ) и фирмата като цяло (а с това и аз) губи.
Поне така мисля на този етап

Cisco expo 2009

За пореден път в нашата фирма голяма дивотия с посещението на тоз евент... още миналата година си бях решил като наближи времето да си пусна 1 ден отпуска и да намеря/купя покана за събитието ама на ... изненадаха ме с толкова ранна дата тази година и разбрах 2 дни преди случката, та пак се подлагам на уговорки, разбирания, получаване на покани в стил 007... като цяло схемата ще да прилича на отивам до офиса, после до Шератон, после пак до офиса (за ~2 часа), после пак до Шератон, после пак до офиса (да се "chek"-на за края на работният ден) и после до вкъщи ... доно догодина тези се сетят да ме уведомят по-отрано
Според програмата за експо-то май-струващите си лекции са:
0:25 - 11:10 ASR 9000 - Новата платформа на Cisco за Edge & Core. Архитектура, производителност и предоставяне на класически и нови услуги - Димитър Василев -- новия IOS XR  и нещото предвидено да бъде доста по-евтината алтернатива на М960 си струва да се чуе/види
-------------------------------------
16:20 - 17:05 Мрежово управление - Ясен Спасов. Решения за управление на корпоративни мрежи. Разглежда продуктите за управление на мрежовите компоненти. Сигурността и елементите на Обединени Комуникации от Cisco

Задачка

Имаме си един AD domain (който си работи ама това друга тема) и users
add-нати в него.
Искаме нов AD domain (друг forest, друг domain) и искаме users от
старият домейн с техните си user profiles да се озоват в новият домейн.
Варианта с ръчно copy/rename на %USERPROFILE% и ръчно сетване на
permissions не е желан.
Интересно и занимателно...

Уникално!

Уникално представяне на Ад-а от Божествени комедии

Малко на чужд език е написано, но пък тук става ясно за какво иде реч ако ми свършат нервите да чета превод от оригинала
А за този проект (The Divine Comedy) дори и не подозирах! (Общомедия)

MPLS LAB

Интересен LAB ... info; initial configs; MPLS.net (от Дидо)
А аз съм голям бот... 2 часа за да го направя и ден и половина за да "разбера че работи"

Installing VMware Tools on linux VM

(Kalin's way)
Host - ESXi 4
Guest - debian linux (lenny)
uname -a
Linux vm-host 2.6.26-2-686 #1 SMP Wed Aug 19 06:06:52 UTC 2009 i686
GNU/Linux

vSphere Client - десен click в/у guest машината - Guest секцията -
Install/Upgrade VMware Tools
След това ssh или console до vmachine
mount /dev/cdrom /mnt/
cp VMwareTools-4.0.0-171294.tar.gz /tmp && cd /tmp
tar xfv VMwareTools-4.0.0-171294.tar.gz
apt-get install psmisc make gcc-4.1 linux-headers-2.6.26-2-686
cd vmware-tools-distrib/
./vmware-install.pl
------------------------
vmware-config-tools.pl (YES/ENTER докато не се откаже да пита)
Сменяме типът на NIC на виртуалната машина на оптимизираният за работа
във виртуална среда VMXNET3

Секс, рок'н рол и работещо дистанционно за да се наслади човек на
предните две.

MS DHCP multinet server

Идеята беше на един Windows 2003 Adv Server да има няколко интерфейса към LAN-a в различни vlan-и и да раздават IP-та от различни мрежи във всеки един от vlan-ите.
Решението е superscope с няколко scope (за всеки интерфейс по един). Такава е схемата
The проблем:
Когато РС намиращо се във vlan 1 направи dhcp request полчуава IP от scope1 от мрежата отговаряща за vlan1
Когато същото РС се премести във vlan 2 и направи dhcp request получава същото IP от scope1 от мрежата отговаряща за vlan1... доакто не се изтрие lease в scope1... тогава след ipconfig /release && ipconfig /renew няма проблеми
Като цяло проблема се дължи на факта, че Windows-a стартира 1 dhcp-server процес и съответно чете само от една база (Systemroot\System32\Dhcp което си е Exchange Server JET storage engine) така, че при повторно запитване от същото РС (т.е. същият МАС адрес в broadcast dhcp discovery packet-a) е нормално сървъра да отговори с IP което му се намира в базата.
Май не е толкова проблем колкото неудобство защото надали ще има толкова РС-та щъкащи от един vlan на друг. Не съм сигурен как е при Linux dhcpd (най-вероятно ефектът ще е същият), но при cisco, mikrotik, HP (ProCurve 48xx) за всеки "scope" се стартира отделен dhcp процес и съответно се създава отделна база

Да не забравя...

Никога да не взимам ASUS NX 1101 !!! Възможно най-тъпата LAN карта ...
Key Features:
Integrated 10/100/1000 transceiver
Plug-and-Play compatible
Support IEEE 802.1q VLAN tagging
Transmit/Receive FIFO (32K) support
Support Wake-on-LAN (WoL) function and remote wake-up
Crossover Detection & Auto-Correction
16KB Jumbo Frame Support
За евтина е евтина и подържа vlans ама никой не казва, че става въпрос
единственно и само за 1 (един)
vlan... което е почти напълно излишно ... дали ще си пусна последният
порт на switch-а tagged или untagged e все тая като мога да имам само 1
логически интерфейс. Едиственното реално приложение което виждам на
подобно решение е ако имам N на брой "тъпи" switches м/у сървъра на
който съм сложил тази карта и core/access switch-a

Apache2+WebDAV on Debian

С apache-to и WebDAV-a лесна работа...
a2enmod dav_fs
a2enmod dav
a2enmod auth_digest (ако digest ще се ползва за auth)
apache2ctl -k restart
Към vhost.cfg се добавя:
Alias /webdav /path/to/vhost/DocumentRoot

<Location /webdav> DAV On 
 AuthType Digest 
 AuthName "webdav-auth" 
 AuthDigestFile  /path/to/auth_file/.digest.passwd 
 Require valid-user 
 </Location> 
 или ако auth type ще е Basic : 
 <Location /webdav> 
DAV On 
 AuthType Basic 
 AuthName "webdav-auth" 
 AuthDigestFile  /path/to/auth_file/.basic.passwd 
 Require valid-user 
 < /Location> 
  apache2ctl -t 
apache2ctl -k restart  

С добавянето на users е малка греда... принципно се добавят така:
htdigest -c /path/to/auth_file/.digest.passwd webdav-auth webdav-user-name
htpasswd -c /path/to/auth_file/.basic.passwd webdav-user-name
Но пък после като тръгнат да установяват връзка сървъра не ми приема credentials, та решението е ако ще се вързват към webdav.server.com потребителите да се добавят така:
htdigest -c /path/to/auth_file/.digest.passwd webdav-auth webdav.server.com\\webdav-user-name
htpasswd -c /path/to/auth_file/.basic.passwd webdav.server.com\\webdav-user-name
И сме в играта...
 cadaver http://webdav.server.com/webdav
Authentication required for webdav on server `webdav.server.com':
Username: eol
Password:
dav:/webdav/>
Ама под Windows големият пръчкогриз... каквото и да му подаваш, какъвто и да е auth type все тая ... все ритник в метатарзисите...
В крайна сметка се оказа, че XP/2003 включително и с SP2 не разбират от Basic Authentication Method ... този reg file оправя работа
Малко (доста) по-късно намерих един sexy trick с който аз да наритам XP-то по крупата, а именно докато се добавя с Add  Network Place Wizard new location в полето connect to Internet or network address да се добави порта към който се закача webdav user-a сиреч: http://webdav.server.com/webdav:80 и слънцето свети, птичките пеят, а камилите решават диференциални уравнения наум
Следващото което трябва да се направи е интеграция на цялата тази дивотия с MS Active Directory ама за този клиент няма да я бъде... и без това това няма да разбере какво е това и с какво мезе върви