Responsibilities:

Provide Tier 1 network and application support for mission critical 24/7 systems
Troubleshoot and resolve production issues
Own and manage incidents from inception through resolution.
Thorough documentation of incident and problem details in near real-time.
Ensure SLAs are met for the systems.
Escalate incidents to SREs (Site Reliability Engineers) as needed.
Required Skills and Expertise:

1 to 3 years of experience working in a 24/7 Network Operation Center
Experience with Database Technology (including MySQL)
Experience troubleshooting complex applications and databases
Knowledge of Linux systems and applications (including MySQL, Java, Apache)
Excellent written and oral communication skills
Minimum 2 years of hands-on Linux experience (Ubuntu/ Debian)
Strong follow-through and initiative to stay with issues until they are resolved, along with discipline and tenacity to meet deadlines.
A positive can-do attitude and the drive and the ability to take yourself, the team, and the product to the corresponding next levels of quality and success on a relentless basis.
Bonus skills:

Experience with Amazon AWS (EC2, S3, EBS, EIP)
At least one of : Python, Perl, Ruby.
Experience with enterprise class database servers and storage
Experience with multiple data center environments

[a]
1.1.1.1 - #1
1.1.1.2 - #2
1.1.1.3 - #3

[b]
2.2.2.1 - #1
2.2.2.2 - #2
2.2.2.3 - #3

ssh 195.128.17.237 -p 62222 -vvv
OpenSSH_6.6.1, OpenSSL 1.0.1j-fips 15 Oct 2014
debug1: Reading configuration data /home/myname/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 20: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 195.128.17.237 [195.128.17.237] port 62222.
debug1: Connection established.
debug3: Incorrect RSA1 identifier
debug3: Could not load "/home/myname/.ssh/id_rsa" as a RSA1 public key
debug1: identity file /home/myname/.ssh/id_rsa type 1
debug1: identity file /home/myname/.ssh/id_rsa-cert type -1
debug1: identity file /home/myname/.ssh/id_dsa type -1
debug1: identity file /home/myname/.ssh/id_dsa-cert type -1
debug1: identity file /home/myname/.ssh/id_ecdsa type -1
debug1: identity file /home/myname/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/myname/.ssh/id_ed25519 type -1
debug1: identity file /home/myname/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1

listen=YES
max_clients=100
max_per_ip=40
hide_ids=YES
idle_session_timeout=600
data_connection_timeout=120
dirmessage_enable=YES
ftpd_banner=Welcome!
anonymous_enable=YES
no_anon_password=YES
anon_root=/var/ftp/pub
anon_umask=022
guest_enable=YES
guest_username=ftpuser
nopriv_user=ftpuser
pam_service_name=vsftpd
virtual_use_local_privs=YES
local_root=/var/ftp/$USER
user_sub_token=$USER
user_config_dir=/etc/vsftpd/user_conf
local_enable=YES
write_enable=YES
local_umask=011
chroot_local_user=YES
chroot_list_enable=NO
xferlog_enable=YES
xferlog_file=/var/log/vsftpd.log

drwxrwxr-x  4 root    ftpuser 4096 Jul 25 18:55 .
drwxr-xr-x 12 root    root    4096 Jul 25 18:43 ..
dr-xr-xr-x  3 ftpuser nogroup 4096 Jul 25 20:02 user1
drwxr-xr-x  2 ftpuser ftpuser 4096 Jul 25 18:55 pub

dr-xr-xr-x 3 ftpuser ftpuser   4096 Jul 25 20:02 .
drwxrwxr-x 4 root    ftpuser   4096 Jul 25 18:55 ..
drwxrwxrwx 2 ftpuser nogroup   4096 Jul 25 20:02 root
-rw-r--r-- 1 ftpuser nogroup 219008 Mar 31 22:36 vsftpd-dbg_3.0.2-14_amd64.deb

traceroute to www.ya.ru (93.158.134.3), 30 hops max, 60 byte packets
 1  192.168.100.253 (192.168.100.253)  0.135 ms  0.109 ms  0.143 ms
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *

18:05:33.455668 IP 217.27.144.3.53 > 192.168.100.110.48491: 45722 4/2/4 CNAME ya.ru., A 213.180.193.3, A 213.180.204.3, A 93.158.134.3 (220)
18:05:33.455693 IP 217.27.144.3.53 > 192.168.100.110.48491: 6526 2/2/4 CNAME ya.ru., AAAA 2a02:6b8::3 (200)
18:05:33.456602 IP 192.168.100.253 > 192.168.100.110: ICMP time exceeded in-transit, length 36
18:05:33.456638 IP 192.168.100.253 > 192.168.100.110: ICMP time exceeded in-transit, length 36
18:05:33.456661 IP 192.168.100.253 > 192.168.100.110: ICMP time exceeded in-transit, length 36
18:05:33.458341 IP 217.27.144.3.53 > 192.168.100.110.46666: 52547 NXDomain* 0/1/0 (98)
18:05:38.467618 ARP, Reply 192.168.100.253 is-at 00:30:4f:6f:e0:08, length 46