I am trying to query a list of hosts and extract all entries which 'dont' match.
When I use this query, it is very very slow. Matching the host with the GOODLIST.host works great and fast but when I use <> to get the hosts which DONT match, it doesnt work as expected. Am I using the wrong approach?
Hi there,
I have a hierarchical database that include 4 tables. Table A is the parent of B, B is Parent of C, C is parent of D. If I want to query everything in D that is associated with A.name, how do I do that? Thanks!
YanYan (0 Replies)
I am debugging some code and came across ? in the WHERE cause in a mysql query.
Is this possible and what situations would this be used?
SELECT ip, count
FROM table
WHERE domain=?
thanks & regards (2 Replies)
Hi there, I have a table that stores multiple records for many different servers, each of which is timestamped ... I wanted to write a query that would enable me to only output the "latest" record (based on timestamp) for each "unique" server. So for example my main table looks like this
... (3 Replies)
hello all
i have 2 columns every column in the following format
column1
2011-04-01 11:39:54
column2
2019-02-03 00:00:00
i want get difference between above data as following
2 days 11:39
how to do so ?
i tried many functions but nothing works
please advice what is the query... (6 Replies)
Hello
i have created mysql query to compare to values and get difference in percentage
as following:
SELECT file_name, 100 - ((100 * (SELECT file_count FROM xipi_files z WHERE x.file_group = z.file_group AND x.file_name = z.file_name AND z.insert_date = CURDATE( ) - INTERVAL 1 DAY)) /... (1 Reply)
Good evening
I need your help please, im new at Unix and i wanted to remove the first 5 headers for 100000 records files and then create a control file .ctl that contains the number of records and all seem to work out but when i tested at production it didnt wotk.
Here is the code:
#!... (6 Replies)
Hi All,
i have a table in mysql with the following data
Table name Test
Assettype Serial_No Status location
Mouse 123456 In Stock chennai
Mouse 98765 Allocated chennai
Keyboard ... (2 Replies)
Hello Friends,
I am using check_mysql_query plugin in nagios to query database and get output. query is working fine but output which i am getting contain query. I want to remove query from output and give custom message which will be simple and understandable.
Can you help me here with any... (5 Replies)
Discussion started by: ghpradeep
5 Replies
LEARN ABOUT CENTOS
libssh2_knownhost_check
libssh2_knownhost_check(3) libssh2 manual libssh2_knownhost_check(3)NAME
libssh2_knownhost_check - check a host+key against the list of known hosts
SYNOPSIS
#include <libssh2.h>
int libssh2_knownhost_check(LIBSSH2_KNOWNHOSTS *hosts,
const char *host,
const char *key, size_t keylen,
int typemask,
struct libssh2_knownhost **knownhost);
DESCRIPTION
Checks a host and its associated key against the collection of known hosts, and returns info back about the (partially) matched entry.
host is a pointer the host name in plain text. The host name can be the IP numerical address of the host or the full name.
key is a pointer to the key for the given host.
keylen is the total size in bytes of the key pointed to by the key argument
typemask is a bitmask that specifies format and info about the data passed to this function. Specificly, it details what format the host
name is, what format the key is and what key type it is.
The host name is given as one of the following types: LIBSSH2_KNOWNHOST_TYPE_PLAIN or LIBSSH2_KNOWNHOST_TYPE_CUSTOM.
The key is encoded using one of the following encodings: LIBSSH2_KNOWNHOST_KEYENC_RAW or LIBSSH2_KNOWNHOST_KEYENC_BASE64.
knownhost if set to non-NULL, it must be a pointer to a 'struct libssh2_knownhost' pointer that gets filled in to point to info about a
known host that matches or partially matches.
RETURN VALUE libssh2_knownhost_check(3) returns info about how well the provided host + key pair matched one of the entries in the list of known hosts.
LIBSSH2_KNOWNHOST_CHECK_FAILURE - something prevented the check to be made
LIBSSH2_KNOWNHOST_CHECK_NOTFOUND - no host match was found
LIBSSH2_KNOWNHOST_CHECK_MATCH - hosts and keys match.
LIBSSH2_KNOWNHOST_CHECK_MISMATCH - host was found, but the keys didn't match!
AVAILABILITY
Added in libssh2 1.2
EXAMPLE
See the ssh2_exec.c example as provided in the tarball.
SEE ALSO libssh2_knownhost_init(3)libssh2_knownhost_free(3)libssh2_knownhost_add(3)libssh2 1.2 28 May 2009 libssh2_knownhost_check(3)