Difference between revisions of "Server Tools"
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==Testing connection== | ==Testing connection== | ||
| − | + | '''curl''' | |
<pre> | <pre> | ||
| − | $ curl -v -k https://mail. | + | $ curl -v -k https://mail.mycompany.org:443 |
| − | * Rebuilt URL to: https://mail. | + | * Rebuilt URL to: https://mail.mycompany.org:443/ |
* Hostname was NOT found in DNS cache | * Hostname was NOT found in DNS cache | ||
* Trying 80.99.81.245... | * Trying 80.99.81.245... | ||
| − | * Connected to mail. | + | * Connected to mail.mycompany.org (80.99.81.245) port 443 (#0) |
* Initializing NSS with certpath: sql:/etc/pki/nssdb | * Initializing NSS with certpath: sql:/etc/pki/nssdb | ||
* skipping SSL peer certificate verification | * skipping SSL peer certificate verification | ||
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA | * SSL connection using TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA | ||
* Server certificate: | * Server certificate: | ||
| − | * subject: E=info@ | + | * subject: E=info@mycompany.org,CN=mail.mycompany.org,OU=BUI,O=mycompany Ugyvedi Iroda,L=Budapest,C=HU |
* start date: Mar 03 18:36:50 2015 GMT | * start date: Mar 03 18:36:50 2015 GMT | ||
* expire date: Feb 28 18:36:50 2025 GMT | * expire date: Feb 28 18:36:50 2025 GMT | ||
| − | * common name: mail. | + | * common name: mail.mycompany.org |
| − | * issuer: E=info@ | + | * issuer: E=info@mycompany.org,CN=ca.mycompany.org,OU=mycompany-CA Division,O=mycompany Corporation,L=Budapest,C=HU |
> GET / HTTP/1.1 | > GET / HTTP/1.1 | ||
> User-Agent: curl/7.37.0 | > User-Agent: curl/7.37.0 | ||
| − | > Host: mail. | + | > Host: mail.mycompany.org |
> Accept: */* | > Accept: */* | ||
> | > | ||
| Line 28: | Line 28: | ||
</pre> | </pre> | ||
| + | ==Ki hallgatózik egy adott porton== | ||
| + | |||
| + | '''lsof''': ez nem mindig a legjobb, nem minden esetben mutatja meg a pid-et. | ||
| + | <pre> | ||
| + | # lsof -i tcp:389 | ||
| + | COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME | ||
| + | slapd 19636 root 7u IPv4 440051 0t0 TCP *:ldap (LISTEN) | ||
| + | slapd 19636 root 8u IPv6 440052 0t0 TCP *:ldap (LISTEN) | ||
| + | </pre> | ||
| + | <br> | ||
| + | '''netstat''': fontos, hogy root-ként futtassuk, mert bizonyos process-eket csak a root láthat. | ||
| + | <pre> | ||
| + | # netstat -nlp | ||
| + | Active Internet connections (only servers) | ||
| + | Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name | ||
| + | tcp 0 0 192.168.10.214:9999 0.0.0.0:* LISTEN 22200/ssh | ||
| + | tcp 0 0 192.168.10.214:16431 0.0.0.0:* LISTEN 22193/ssh | ||
| + | tcp 0 0 192.168.10.214:8080 0.0.0.0:* LISTEN 22193/ssh | ||
| + | tcp 0 0 0.0.0.0:8081 0.0.0.0:* LISTEN 22633/webservd-wdog | ||
| + | ... | ||
| + | </pre> | ||
=Disk= | =Disk= | ||
| Line 34: | Line 55: | ||
===Partition space=== | ===Partition space=== | ||
| + | '''df''' | ||
<pre> | <pre> | ||
# df -h | # df -h | ||
| Line 48: | Line 70: | ||
===Folder size=== | ===Folder size=== | ||
| + | '''du''' | ||
<pre> | <pre> | ||
# du -sh * | # du -sh * | ||
Latest revision as of 07:35, 6 October 2018
Contents
Networking
Testing connection
curl
$ curl -v -k https://mail.mycompany.org:443 * Rebuilt URL to: https://mail.mycompany.org:443/ * Hostname was NOT found in DNS cache * Trying 80.99.81.245... * Connected to mail.mycompany.org (80.99.81.245) port 443 (#0) * Initializing NSS with certpath: sql:/etc/pki/nssdb * skipping SSL peer certificate verification * SSL connection using TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA * Server certificate: * subject: E=info@mycompany.org,CN=mail.mycompany.org,OU=BUI,O=mycompany Ugyvedi Iroda,L=Budapest,C=HU * start date: Mar 03 18:36:50 2015 GMT * expire date: Feb 28 18:36:50 2025 GMT * common name: mail.mycompany.org * issuer: E=info@mycompany.org,CN=ca.mycompany.org,OU=mycompany-CA Division,O=mycompany Corporation,L=Budapest,C=HU > GET / HTTP/1.1 > User-Agent: curl/7.37.0 > Host: mail.mycompany.org > Accept: */* > < HTTP/1.1 200 OK ....
Ki hallgatózik egy adott porton
lsof: ez nem mindig a legjobb, nem minden esetben mutatja meg a pid-et.
# lsof -i tcp:389 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME slapd 19636 root 7u IPv4 440051 0t0 TCP *:ldap (LISTEN) slapd 19636 root 8u IPv6 440052 0t0 TCP *:ldap (LISTEN)
netstat: fontos, hogy root-ként futtassuk, mert bizonyos process-eket csak a root láthat.
# netstat -nlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 192.168.10.214:9999 0.0.0.0:* LISTEN 22200/ssh tcp 0 0 192.168.10.214:16431 0.0.0.0:* LISTEN 22193/ssh tcp 0 0 192.168.10.214:8080 0.0.0.0:* LISTEN 22193/ssh tcp 0 0 0.0.0.0:8081 0.0.0.0:* LISTEN 22633/webservd-wdog ...
Disk
Size, space
Partition space
df
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_server-lv_root
9.5G 2.5G 6.6G 28% /
tmpfs 4.9G 0 4.9G 0% /dev/shm
/dev/md0 283M 64M 205M 24% /boot
/dev/mapper/vg_server-lv_home
366G 23G 325G 7% /home
/dev/mapper/vg_server-lv_var
29G 24G 3.5G 88% /var
Folder size
du
# du -sh * 12K cache 3.7G files 764M files_trashbin 674M files_versions 294M thumbnails
Memory
Memory usage by processes
# ps aux --sort -rss
# ps -eo size,pid,user,command --sort -size | awk '{ hr=$1/1024 ; printf("%13.2f Mb ",hr) } { for ( x=4 ; x<=NF ; x++ ) { printf("%s ",$x) } print "" }'
Sum memory usage
# free -h