sudo: /etc/sudoers is mode 0640, should be 0440
sudo: no valid sudoers sources found, quitting
$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: yes
$ grep "" /sys/class/net/eth0/* ... /sys/class/net/eth0/carrier:1 ... /sys/class/net/eth0/operstate:up ...
location ^~ /static {
proxy_pass http://cdn.server/static;
}
location ^~ /static {
root /var/www
}
location ^~ /static {
root /var/www;
proxy_buffering on;
proxy_cache_valid 200 120m;
expires 30d;
}
location ~* (/images|/css|/js) {
...
}
location ~* \.(jpg|png|gif|jpeg|css|js|mp3|wav|swf|mov|doc|pdf|xls|ppt|docx|pptx|xlsx)$ {
...
}
Too many value tests per predicate in the query expression
或
Client error : Too many value tests per predicate in the query expression.
SELECT * FROM domain WHERE id='1' OR id='2' OR ... id='20' OR id='21'
SELECT * FROM domain WHERE id in ('1', '2', ... '20', '21')
SELECT * FROM domain WHERE id in ('1', '2', ... '20') OR id in ('21', ...)
SELECT * FROM `domain` WHERE
account in ('key1', 'key2', 'key3', 'key4', 'key5', 'key6', 'key7', 'key8', 'key9', 'key10',
'key11', 'key12', 'key13', 'key14', 'key15', 'key16', 'key17', 'key18', 'key19', 'key20') OR
dummy IS NOT NULL OR
account in ('key21', 'key22', 'key23', 'key24', 'key25', 'key26', 'key27', 'key28', 'key29', 'key30',
'key31', 'key32', 'key33', 'key34', 'key35', 'key36', 'key37', 'key38', 'key39', 'key40')
沒錯，就是加了"OR dummy IS NOT NULL"這個多餘的條件在中間就可以下達多個條件了！
htpasswd -c /etc/svn/passwd user
[groups] admin = user1, user2 [Project1:/] @admin = rw [Project2:/] @admin = rw [Project2:/Doc] user3 = rw
LoadModule dav_svn_module modules/mod_dav_svn.so LoadModule authz_svn_module modules/mod_authz_svn.so <Location /svn> DAV svn SVNParentPath /var/svn SSLRequireSSL AuthType Basic AuthName "Authorization Realm" AuthUserFile /etc/svn/passwd AuthzSVNAccessFile /etc/svn/authz Require valid-user </location>
svnadmin create /var/svn/Project1
chown -R apache:apache /var/svn/Project1
SVN_VERSION = "\"`svn info | grep Revision | sed 's/Revision: //g'`\"" BUILD_TIME = "\"`date '+%Y/%m/%d %H:%M:%S'`\"" CFLAGS += -DSVN_VERSION=$(SVN_VERSION) -DBUILD_TIME=$(BUILD_TIME)
void show_version (void)
{
printf("SVN Version: %s, Bulid time: %s\n", SVN_VERSION, BUILD_TIME);
}
Preprocessing 的時候 macro 會自動被帶換掉啦！
$ sudo nc -v -u -l -s 127.0.0.1 -p 53 -e 'nc -u 8.8.8.8 53' $ nslookup - 127.0.0.1 > yahoo.com Server: 10.32.100.199 Address: 10.32.100.199#53 Non-authoritative answer: Name: yahoo.com Address: 209.191.122.70 Name: yahoo.com Address: 72.30.38.140 Name: yahoo.com Address: 98.139.183.24 >It's work!
$ mkfifo fifo1 fifo2 $ sudo nc -u -l -s 127.0.0.1 -p 53 -c -x > fifo1 < fifo2 Received 27 bytes from the socket 00000000 E2 20 01 00 00 01 00 00 00 00 00 00 05 79 61 68 . ...........yah 00000010 6F 6F 03 63 6F 6D 00 00 01 00 01 oo.com..... Sent 75 bytes to the socket 00000000 E2 20 81 80 00 01 00 03 00 00 00 00 05 79 61 68 . ...........yah 00000010 6F 6F 03 63 6F 6D 00 00 01 00 01 C0 0C 00 01 00 oo.com.......... 00000020 01 00 00 09 80 00 04 62 8B B7 18 C0 0C 00 01 00 .......b........ 00000030 01 00 00 09 80 00 04 D1 BF 7A 46 C0 0C 00 01 00 .........zF..... 00000040 01 00 00 09 80 00 04 48 1E 26 8C .......H.&. $ nc -u 8.8.8.8 53 -x < fifo1 > fifo2 Sent 27 bytes to the socket 00000000 E2 20 01 00 00 01 00 00 00 00 00 00 05 79 61 68 . ...........yah 00000010 6F 6F 03 63 6F 6D 00 00 01 00 01 oo.com..... Received 75 bytes from the socket 00000000 E2 20 81 80 00 01 00 03 00 00 00 00 05 79 61 68 . ...........yah 00000010 6F 6F 03 63 6F 6D 00 00 01 00 01 C0 0C 00 01 00 oo.com.......... 00000020 01 00 00 09 80 00 04 62 8B B7 18 C0 0C 00 01 00 .......b........ 00000030 01 00 00 09 80 00 04 D1 BF 7A 46 C0 0C 00 01 00 .........zF..... 00000040 01 00 00 09 80 00 04 48 1E 26 8C .......H.&. $ nslookup - 127.0.0.1 > yahoo.com Server: 10.32.100.199 Address: 10.32.100.199#53 Non-authoritative answer: Name: yahoo.com Address: 98.139.183.24 Name: yahoo.com Address: 209.191.122.70 Name: yahoo.com Address: 72.30.38.140 >
$ sudo nc -u -l -s 127.0.0.1 -p 53 > fake_query $ nslookup - 127.0.0.1 > yahoo.com
$ cat fake_query | nc -u 8.8.8.8 53 > fake_response
$ mkfifo fifo1 fifo2 $ sudo nc -u -l -s 127.0.0.1 -p 53 -c > fifo1 < fifo2 & $ sh filter.sh < fifo1 > fifo2
#!/bin/sh
QID=
COUNT=0
cat - | while read -n 1 byte
do
if [ $COUNT -lt 2 ]; then
QID+=$byte
fi
if [ $COUNT -eq 2 ]; then
echo -n $QID$(cut -b 3- fake_response)
fi
COUNT=`expr $COUNT + 1`
done
$ nslookup - 127.0.0.1 > yahoo.com ;; Got bad packet: bad compression pointer 51 bytes 65 9c 81 80 01 03 05 79 61 68 6f 6f 03 63 6f 6d 01 01 c0 0c 01 01 01 ad 04 d1 bf 7a 46 c0 0c 01 01 01 ad 04 48 1e 26 8c c0 0c 01 01 01 ad 04 62 8b b7 18 >Oh no~ 還是有問題，初估應該是 dns packet header 哪邊需要動態更改...
hexdump -C file
while read -n 1 byte; do
ord=$(printf "%b" "${byte:-\000}" |
od -t x1 |
{ read offset hex; echo $hex; })
echo "$ord"
done
#!/bin/sh
cat - | while read LINE
do
echo ${LINE}
done
try ls -al | script.sh